cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Fluctuation-Response Relation as a Probe of Long-Range Correlations in Non-Equilibrium Quantum and Classical Fluids
Creators: name: Kirkpatrick, T. R.
name: Belitz, D.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The absence of a simple fluctuation-dissipation theorem is a major obstacle for studying systems that are not in thermodynamic equilibrium. We show that for a fluid in a non-equilibrium steady state characterized by a constant temperature gradient the commutator correlation functions are still related to response functions; however, the relation is to the bilinear response of products of two observables, rather than to a single linear response function as is the case in equilibrium. This modified fluctuation-response relation holds for both quantum and classical systems. It is both motivated and informed by the long-range correlations that exist in such a steady state and allows for probing them via response experiments. This is of particular interest in quantum fluids, where the direct observation of fluctuations by light scattering would be difficult. In classical fluids it is known that the coupling of the temperature gradient to the diffusive shear velocity leads to correlations of various observables, in particular temperature fluctuations, that do not decay as a function of distance, but rather extend over the entire system. We investigate the nature of these correlations in a fermionic quantum fluid and show that the crucial coupling between the temperature gradient and velocity fluctuations is the same as in the classical case. Accordingly, the nature of the long-ranged correlations in the hydrodynamic regime also is the same. However, as one enters the collisionless regime in the low-temperature limit the nature of the velocity fluctuations changes: they become ballistic rather than diffusive. As a result, correlations of the temperature and other observables are still singular in the long-wavelength limit, but the singularity is weaker than in the hydrodynamic regime.
description: 29pp, 3 figs
SERNet-Former: Semantic Segmentation by Efficient Residual Network with Attention-Boosting Gates and Attention-Fusion Networks
Creators: name: Erisen, Serdar
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Improving the efficiency of state-of-the-art methods in semantic segmentation requires overcoming the increasing computational cost as well as issues such as fusing semantic information from global and local contexts. Based on the recent success and problems that convolutional neural networks (CNNs) encounter in semantic segmentation, this research proposes an encoder-decoder architecture with a unique efficient residual network, Efficient-ResNet. Attention-boosting gates (AbGs) and attention-boosting modules (AbMs) are deployed by aiming to fuse the equivariant and feature-based semantic information with the equivalent sizes of the output of global context of the efficient residual network in the encoder. Respectively, the decoder network is developed with the additional attention-fusion networks (AfNs) inspired by AbM. AfNs are designed to improve the efficiency in the one-to-one conversion of the semantic information by deploying additional convolution layers in the decoder part. Our network is tested on the challenging CamVid and Cityscapes datasets, and the proposed methods reveal significant improvements on the residual networks. To the best of our knowledge, the developed network, SERNet-Former, achieves state-of-the-art results (84.62 % mean IoU) on CamVid dataset and challenging results (87.35 % mean IoU) on Cityscapes validation dataset.
Tensor network influence functionals in the continuous-time limit: connections to quantum embedding, bath discretization, and higher-order time propagation
Creators: name: Park, Gunhee
name: Ng, Nathan
name: Reichman, David R.
name: Chan, Garnet Kin-Lic
Publisher: name: arXiv
Year: 2024
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Chemical Physics (physics.chem-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We describe two developments of tensor network influence functionals (in particular, influence functional matrix product states (IF-MPS)) for quantum impurity dynamics within the fermionic setting of the Anderson impurity model. The first provides the correct extension of the IF-MPS to continuous time by introducing a related mathematical object, the boundary influence functional MPS. The second connects the dynamics described by a compressed IF-MPS to that of a quantum embedding method with a time-dependent effective bath undergoing nonunitary dynamics. Using these concepts, we implement higher-order time propagators for the quench dynamics of the Anderson impurity model within the boundary IF-MPS formalism. The calculations illustrate the ability of the current formulation to efficiently remove the time step error in standard discrete-time IF-MPS implementations as well as to interface with state vector propagation techniques. They also show the advantages of IF-MPS dynamics, with its associated highly compact effective bath dynamics, over state vector propagation with a static bath discretization.
Gaseous Diffusion as a Correlated Random Walk
Creators: name: Yuste, Santos Bravo
name: González, Rubén Gómez
name: Garzó, Vicente
Publisher: name: arXiv
Year: 2024
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The mean square displacement per collision of a molecule immersed in a gas at equilibrium is given by its mean square displacement between two consecutive collisions (mean square free path) corrected by a prefactor in the form of a series. The $n$-th term of the series is proportional to the mean value of the scalar product $\rb_1 \cdot \rb_{n}$, where $\rb_i$ is the displacement of the molecule between the $(i-1)$-th and $i$-th collisions. Simple arguments are used to obtain approximate expressions for each term. The key finding is that the ratio of consecutive terms in the series closely approximates the so-called mean persistence ratio. Exact expressions for the terms in the series are considered and their ratios for several consecutive terms are calculated for the case of hard spheres, showing an excellent agreement with the mean persistence ratio. These theoretical results are confirmed by solving the Boltzmann equation by means of the direct simulation Monte Carlo method. By summing the series, the mean square displacement and the diffusion coefficient can be determined using only two quantities: the mean square free path and the mean persistence ratio. A simple and an improved expression for the diffusion coefficient $D$ are considered and compared with the so-called first and second Sonine approximations to $D$ as well as with computer simulations of the Boltzmann equation. It is found that the improved diffusion coefficient shows very good agreement with simulation results over all intruder and molecule mass ranges. When the intruder mass is smaller than that of the gas molecules, the improved formula even outperforms the first Sonine approximation.
description: 16 pages, 6 figures, accepted for publication in Physical Review E
Trypanosyllis Claparede 1864
Creators: name: Mikac, Barbara
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Phyllodocida
Syllidae
Trypanosyllis

description: Genus Trypanosyllis Claparède, 1864
Trypanosyllis aeolis Langerhans, 1879
DISTRIBUTION: NA, SA.
LITERATURE RECORDS: Musco et al. 2004; Castelli et al. 2008. NEW RECORDS: BM34.
Trypanosyllis coeliaca Claparède, 1868
DISTRIBUTION: NA, CA, SA.
LITERATURE RECORDS: Grube 1864; Stossich 1883; Carus 1884; Graeffe 1905; Banse 1959; Katzmann 1971, 1972, 1973a; Velimirov & Sint 1975; Katzmann 1983; Požar-Domac 1983; Besteiro et al. 1987; Požar-Domac 1994; Zahtila 1995; Giangrande et al. 2003, 2004; Musco et al. 2004; Casellato & Stefanon 2008; Castelli et al. 2008; Mikac & Musco 2010; Musco 2012.
OTHER REPORTED NAMES: Pseudosyllis brevipennis Grube 1863; Trypanosyllis rosea (Grube 1863); Tetraglene rosea Grube 1863.
* Trypanosyllis zebra (Grube, 1860) DISTRIBUTION: NA, CA, SA.
LITERATURE RECORDS: Grube 1860, 1861, 1864; Stossich 1876, 1883; Carus 1884; Graeffe 1905; Fauvel 1938; Cognetti 1958; Laubier 1962; Zavodnik 1965, 1967b; Bellan 1969; Banse 1970; Amoureux & Katzmann 1971; Zavodnik 1971; Katzmann 1971, 1972, 1973a; Matjašić & Štirn 1975; Velimirov & Sint 1975; Amoureux 1975, 1983c; Avčin & Vrišer 1983; Katzmann 1983; Požar-Domac 1983, 1986; Gherardi et al. 1993; Požar-Domac 1994; Zahtila 1995; Giangrande et al. 2003, 2004; Musco et al. 2004; Casellato & Stefanon 2008; Castelli et al. 2008; Mikac & Musco 2010; Musco 2012.
NEW RECORDS: BM77, BM83, BM84.
OTHER REPORTED NAMES: Syllis zebra Grube, 1860.
description: Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on pages 139-140, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/244663
Quasibound state reminiscent in de-Sitter black holes: Quasinormal modes and the decay of massive fields
Creators: name: Corrêa, Mateus Malato
name: Macedo, Caio F. B.
name: Rosa, João Luís
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Massive perturbations in asymptotic flat black holes leave a distinct signature in their late-time evolution `tail': an oscillatory behavior modulated by the Compton wavelength of the field, which can be associated with the so-called quasibound state spectrum. In asymptotically de-Sitter spacetimes, however, the massive perturbations always leak to the cosmological horizon, which indicates the absence of a quasibound part of the spectrum. In this work, we show that an additional mode exists in asymptotically de-Sitter black holes that produces an imprint similar to that of the quasibound states in the late-time behavior of massive scalar perturbations. If the Compton wavelength is larger than a certain critical value (which depends on the cosmological constant), the oscillatory behavior of the tail turns into an exponential decay due to the fact that the de-Sitter mode is purely imaginary. Even for black holes with typical length scales small in comparison to the size of the cosmological horizon, the late-time tail behavior of the massive perturbations is modified as compared to the usual $t^{-5/6}$ for Schwarzschild black holes, thus being a distinctive feature induced by the presence of a cosmological constant.
description: 12 pages, 7 figures, 4 tables
Developing an Analytical Fixed Source Solver for the 1D Multigroup $S_N$ Equations
Creators: name: Miao, Jilang
name: Jin, Miaomiao
Publisher: name: arXiv
Year: 2024
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We extend the analytical multigroup $S_N$ method to solve 1D fixed source problems. The fixed source solver is applied in power iteration of eigenvalue problems.
Coarse Mesh Iteration Approach for Analytical 1D Multigroup $S_N$ Eigenvalue Problems
Creators: name: Miao, Jilang
name: Jin, Miaomiao
Publisher: name: arXiv
Year: 2024
Subjects: subject: Numerical Analysis (math.NA)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: This paper extends the fixed source capability of analytical 1D multigroup $S_N$ equations to solve eigenvalue problems on coarse mesh.
Precessing and periodic timelike orbits and their potential applications in Einsteinian cubic gravity
Creators: name: Li, Yong-Zhuang
name: Kuang, Xiao-Mei
Publisher: name: arXiv
Year: 2024
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Einsteinian cubic gravity (ECG) is the most general theory up to cubic order in curvature, which have the same graviton spectrum as the Einstein theory. In this paper, we investigate the geodesic motions of timelike particles around the four dimensional asymptotically flat black holes in ECG, and discuss their potential applications when connecting them with recent observational results. We first explore the effects of the cubic couplings on the marginally bound orbits (MBO), innermost stable circular orbits (ISCO) and on the periodic orbits around the Einsteinian cubic black hole. We find that comparing to Schwarzschild black hole in general relativity, the cubic coupling enhances the energy as well as the angular momentum for all the bound orbits of the particles. Then, we derive the relativistic periastron precessions of the particles and give a preliminary bound on the cubic coupling employing the observational result of the S2 star' precession in SgrA*. Finally, after calculating the periodic orbits' configurations, we preliminarily evaluate the gravitational waveform radiated from several periodic orbits in one complete period of a test object which orbits a supermassive Einsteinian cubic black hole. Our studies could be helpful for us to better understand the gravitational structure of the theory with high curvatures.
description: 15 pages
Xenosyllis Marion & Bobretzky 1875
Creators: name: Mikac, Barbara
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Phyllodocida
Syllidae
Xenosyllis

description: Genus Xenosyllis Marion & Bobretzky, 1875
* Xenosyllis scabra (Ehlers, 1864)
DISTRIBUTION: NA, SA.
LITERATURE RECORDS: Ehlers 1864; Fraschetti et al. 2002; Giangrande et al. 2003, 2004; Musco et al. 2004; Castelli et al. 2008; Mikac & Musco 2010.
OTHER REPORTED NAMES: Syllis scabra Ehlers, 1864.
REMARKS: According to San Martín et al. (2008), the reports of this species beyond the type locality (i.e. Kvarner Gulf, NA) should be re-examined, as they may represent other species in the genus.
description: Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on page 140, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/244663
A GENERIC ARCHITECTURE FOR INSIDER MISUSE MONITORING IN IT SYSTEMS
Creators: name: PHYO, AUNG HTIKE
Publisher: name: University of Plymouth
Year: 2007

description: Intrusion Detection Systems (IDS) have been widely deployed within many organisations' IT nenvorks to delect network penetration attacks by outsiders and privilege escalation attacks by insiders. However, traditional IDS are ineffective for detecting o f abuse o f legitimate privileges by authorised users within the organisation i.e. the detection of misfeasance. In essence insider IT abuse does not violate system level controls, yet violates acceptable usage policy, business controls, or code of conduct defined by the organisation. However, the acceptable usage policy can vary from one organisation to another, and the acceptability o f user activities can also change depending upon the user(s), application, machine, data, and other contextual conditions associated with the entities involved. The fact that the perpetrators are authorised users and that the insider misuse activities do not violate system level controls makes detection of insider abuse more complicated than detection o f attacks by outsiders. The overall aim o f the research is to determine novel methods by which monitoring and detection may be improved to enable successful detection of insider IT abuse. The discussion begins with a comprehensive investigation o f insider IT misuse, encompassing the breadth and scale of the problem. Consideration is then given to the sufficiency of existing safeguards, with the conclusion that they provide an inadequate basis for detecting many o f the problems. This finding is used as the justification for considering research into alternative approaches. The realisation of the research objective includes the development of a taxonomy for identification o f various levels within the system from which the relevant data associated with each type of misuse can be collected, and formulation of a checklist for identification of applications that requires misfeasor monitoring. Based upon this foundation a novel architecture for monitoring o f insider IT misuse, has been designed. The design offers new analysis procedures to be added, while providing methods to include relevant contextual parameters from dispersed systems for analysis and reference. The proposed system differs from existing IDS in the way that it focuses on detecting contextual misuse of authorised privileges and legitimate operations, rather than detecting exploitation o f network protocols and system level \ailnerabilities. The main concepts of the new architecture were validated through a proof-of-concept prototype system. A number o f case scenarios were used to demonstrate the validity of analysis procedures developed and how the contextual data from dispersed databases can be used for analysis of various types of insider activities. This helped prove that the existing detection technologies can be adopted for detection o f insider IT misuse, and that the research has thus provided valuable contribution to the domain.
A Cooper-pair beam splitter as a feasible source of entangled electrons
Creators: name: Sharmila, B.
name: Souza, F. M.
name: Vasconcelos, H. M.
name: Sanz, L.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the generation of an entangled electron pair emerging from a system composed of two quantum dots attached to a superconductor Cooper pair beam splitter. We take into account three processes: Crossed Andreev Reflection, cotuneling, and Coulomb interaction. Together, these processes play crucial roles in the formation of entangled electronic states, with electrons being in spatially separated quantum dots. By using perturbation theory, we derive an analytical effective model that allows a simple picture of the intricate process behind the formation of the entangled state. Several entanglement quantifiers, including quantum mutual information, negativity, and concurrence, are employed to validate our findings. Finally, we define and calculate the covariance associated with the detection of two electrons, each originating from one of the quantum dots with a specific spin value. The time evolution of this observable follows the dynamics of all entanglement quantifiers, thus suggesting that it can be a useful tool for mapping the creation of entangled electrons in future applications within quantum information protocols.
description: To be published in Physical Review A
Amaeana Hartman 1959
Creators: name: Mikac, Barbara
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Terebellida
Terebellidae
Amaeana

description: Genus Amaeana Hartman, 1959
Amaeana trilobata (M. Sars, 1863)
DISTRIBUTION: NA, CA.
LITERATURE RECORDS: Orel & Mennea 1969; Katzmann 1973a; Amoureux 1976, 1979; Zavodnik 1979; Katzmann 1983; Avčin & Vrišer 1983; Zavodnik et al. 1985; Požar-Domac 1994; Cantone & Di Pietro 2002; Castelli et al. 2008.
NEW RECORDS: BM53.
OTHER REPORTED NAMES: Amaea trilobata (Sars, 1863).
description: Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on page 140, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/244663
Nonstabilizerness via matrix product states in the Pauli basis
Creators: name: Tarabunga, Poetri Sonya
name: Tirrito, Emanuele
name: Bañuls, Mari Carmen
name: Dalmonte, Marcello
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Nonstabilizerness, also known as ``magic'', stands as a crucial resource for achieving a potential advantage in quantum computing. Its connection to many-body physical phenomena is poorly understood at present, mostly due to a lack of practical methods to compute it at large scales. We present a novel approach for the evaluation of nonstabilizerness within the framework of matrix product states (MPS), based on expressing the MPS directly in the Pauli basis. Our framework provides a powerful tool for efficiently calculating various measures of nonstabilizerness, including stabilizer Rényi entropies, stabilizer nullity, and Bell magic, and enables the learning of the stabilizer group of an MPS. We showcase the efficacy and versatility of our method in the ground states of Ising and XXZ spin chains, as well as in circuits dynamics that has recently been realized in Rydberg atom arrays, where we provide concrete benchmarks for future experiments on logical qubits up to twice the sizes already realized.
description: 7+10 pages, 3+7 figures
Amphitrite O.F. Muller 1771
Creators: name: Mikac, Barbara
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Terebellida
Terebellidae
Amphitrite

description: Genus Amphitrite O.F. Müller, 1771
Amphitrite cirrata O.F. Müller, 1771
DISTRIBUTION: NA, CA, SA.
LITERATURE RECORDS: Grube 1864; Karl 1871; Stossich 1883; Carus 1884; Graeffe 1905; Fauvel 1940; Katzmann 1972; Matjašić & Štirn 1975; Amoureux 1983a; Avčin & Vrišer 1983; Zavodnik et al. 1985; Aleffi et al. 1988; Požar-Domac 1994; Zahtila 1995, 1997; Pranovi et al. 2000; Aleffi et al. 2003; Giangrande et al. 2003; Solis-Weiss et al. 2004; Castelli et al. 2008.
NEW RECORDS: BM12.
OTHER REPORTED NAMES: Terebella cirrata O.F. Müller, 1771; Amphitrite cirrosa (O.F. Muller, 1771).
Amphitrite rubra (Risso, 1826)
DISTRIBUTION: NA, CA, SA.
LITERATURE RECORDS: Grube 1861; Lorenz 1863; Grube 1864; Stossich 1876, 1883; Carus 1884; Graeffe 1905; Vatova 1928; Fauvel 1934; Meštrov 1957; Banse 1959; Bellan 1969; Banse 1970; Amoureux & Katzmann 1971; Zavodnik 1971; Katzmann 1972; Marcuzzi 1972; Matjašić & Štirn 1975; Marano et al. 1976; Igić 1982; Radić 1982; Vaccarella & Pastorelli 1982; Amoureux 1983c; Fassari 1983; Špan et al. 1989; Gherardi et al. 1993; Požar- Domac 1994; Zahtila 1995; Zavodnik & Kovačić 2000; Giangrande et al. 2003; Castelli et al. 2008.
OTHER REPORTED NAMES: Neoamphitrite rubra (Risso, 1828); Terebella multisetosa Grube, 1838; Terebella spiralis Grube 1860; Terebella compacta Grube 1863.
Amphitrite variabilis (Risso, 1826)
DISTRIBUTION: NA, CA, SA.
LITERATURE RECORDS: Grube 1861; Lorenz 1863; Grube 1864; Karl 1871; Stossich 1876, 1883; Carus 1884; Graeffe 1905; Fauvel 1934; Vatova 1935, 1949a; Meštrov 1957; Banse 1970; Amoureux & Katzmann 1971; Katzmann 1971, 1972; Požar 1972; Matjašić & Štirn 1975; Velimirov & Sint 1975; Bellan 1976; Igić 1982; Avčin & Vrišer 1983; Požar-Domac 1983; Del Piero et al. 1984; Gillet 1986; Požar-Domac 1986; Aleffi et al. 1988; Požar-Domac 1994; Zahtila 1995; Zavodnik & Kovačić 2000 Solis-Weiss et al. 2004, 2007; Castelli et al. 2008. NEW RECORDS: BM91.
OTHER REPORTED NAMES: Terebella viminalis Grube 1855.
description: Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on pages 140-141, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/244663
Legendre Expansion for Scattering Anisotropy in Analytical 1D Multigroup $S_N$ Equations
Creators: name: Miao, Jilang
name: Jin, Miaomiao
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We demonstrate the scattering anisotropy treatment of the previously developed analytical solution for 1D multigroup $S_N$ equations.
Contrasting twisted bilayer graphene and transition metal dichalcogenides for fractional Chern insulators: an emergent gauge picture
Creators: name: Li, Heqiu
name: Su, Ying
name: Kim, Yong Baek
name: Kee, Hae-Young
name: Sun, Kai
name: Lin, Shi-Zeng
Publisher: name: arXiv
Year: 2024
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The recent experimental discovery of the zero-field fractional Chern insulator (FCI) in twisted $\mathrm{MoTe_2}$ moiré superlattices has sparked immense interest in this exotic topological quantum state. The FCI has also been observed in previous experiments in magic angle twisted bilayer graphene (TBG) under a finite magnetic field of about 5 Tesla. Generally, the stabilization of FCI requires fine-tuning the topological band to satisfy certain conditions. It would still be helpful to have an intuitive picture to understand the different behaviors in twisted $\mathrm{MoTe_2}$ and TBG. Here, we compare them through the lens of emergent gauge fields. In TBG, the system can be mapped to two Dirac fermions coupled to emergent gauge fields with opposite signs. In contrast, the twisted $\mathrm{MoTe_2}$ reduces to a hole with parabolic dispersion coupled to an emergent gauge field. This contrasting gauge structure provides a new perspective on the observed difference: the zero-field FCI is stable in $\mathrm{MoTe_2}$ but absent in TBG. Based on this understanding, we will explore potential strategies for stabilizing FCI in both moiré superlattices.
XORAZMSHOH   OTSIZ   VA   RASHIDIDDIN   VATVOT
Creators: name: Murtazoyev, Bobonazar
name: Abdullayeva, Nilufar
Publisher: name: Zenodo
Year: 2024

description: Maqolada Otsiz Xorazmshoh  va Rashiduddin Vatvot munosabatlariga doir voqealar qamrab olingan. Ular o’rtalaridagi ajoyib hodisalar Muhammad Avfiyning “Lubobu-l-albob” tazkirasida o’zining ma’lum miqdorda  ifodasini topgan. Vatvotga doir ba’zi ma’lumotlarni Davlatshoh “Tazkirat-ush-shuaro” asari vositasida to’ldirdik.
The in vitro manipulation of cauliflower (Brassica oleracea L. convar. botrytis (L.) Alef. var. botrytis L.) meristematic tissues for utilisation in genetic improvement programmes
Creators: name: Kieffer, Martin Louis
Publisher: name: University of Plymouth
Year: 1996

description: Merged with duplicate record 10026.1/629 on 27.02.2017 by CS (TIS)
description: Cauliflower curd meristem activity (organogenic, plastochronic, phyllotactic) was analysed biometrically and confirmed that the curd is the product of a constant process of meristem production and branch ramification with little if any dominance between branch apices. A growth model based on curd branching pattern was developed and its mathematical expression enabled the estimation of the number of meristems carried by a curd at maturity to be over ten million which was previously widely underestimated. Analysis of the response to the in vitro culture of this meristematic tissues revealed that meristems are not predetermined to produce flower and that their shoot regeneration capacity is under several levels of control, the most important being explant physical property (size) and the culture system (nutrient supply). Optimisation of these parameters enabled the development of a low cost, semi-automated protocol for mass production of cauliflower propagules at an unprecedented scale with over 10000 propagules produced per curd. Micropropagules a few millimetres in length were produced, encapsulated in calcium alginate hydrogel, stored at 4°C for several months and used as an 'artificial seed' system of cauliflower propagation. The response to the procedure of micropropagule production is genotype-dependent with summer heading varieties being less reactive than winter heading varieties, this phenomenon was also associated with plasmalemma instability at the cellular (protoplast) level. Furthermore, this material was successfully cryopreserved in liquid nitrogen using a dehydration I vitrification method. The micropropagation protocol is of great interest when used as a regeneration system for experiments involving genetic manipulation such as genetic transformation. A preliminary study of genetic transformation by microprojectile bombardment, using the gus reporter gene, allowed transient expression in curd meristematic tissue. The fundamental and industrial implications for cauliflower breeding of the different protocols developed in this thesis are discussed.
Behavioral transition of a fish school in a crowded environment
Creators: name: Ventéjou, Bruno
name: Magniez--Papillon, Iris
name: Bertin, Eric
name: Peyla, Philippe
name: Dupont, Aurélie
Publisher: name: arXiv
Year: 2024
Subjects: subject: Biological Physics (physics.bio-ph)
subject: FOS: Physical sciences

description: In open water, social fish gather to form schools, in which fish generally align with each other. In this work, we study how this social behavior evolves when perturbed by artificial obstacles. We measure the collective behavior of a group of zebrafish in the presence of a periodic array of pillars. When pillar density is low, the fish regroup with a typical inter-distance and a well-polarized state with parallel orientations, similar to their behavior in open water conditions. Above a critical density of pillars, their social interactions, which are mostly based on vision, are screened and the fish spread randomly through the aquarium, orienting themselves along the free axes of the pillar lattice. The abrupt transition from natural to artificial orientation happens when the pillar inter-distance is comparable to the social distance of the fish, i.e., their most probable inter-distance. We develop a stochastic model of the relative orientation between fish pairs, taking into account alignment, anti-alignment and tumbling, from a distribution biased by the environment. This model provides a good description of the experimental probability distribution of the relative orientation between the fish and captures the behavioral transition. Using the model to fit the experimental data provides qualitative information on the evolution of cognitive parameters, such as the alignment or the tumbling rates, as the pillar density increases. At high pillar density, we find that the artificial environment imposes its geometrical constraints to the fish school, drastically increasing the tumbling rate.
description: 9 figures in main text, 5 figures in appendix
Enhancing model identification with SINDy via nullcline reconstruction
Creators: name: Prokop, Bartosz
name: Frolov, Nikita
name: Gelens, Lendert
Publisher: name: arXiv
Year: 2024
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: Many dynamical systems exhibit oscillatory behavior that can be modeled with differential equations. Recently, these equations have increasingly been derived through data-driven methods, including the transparent technique known as Sparse Identification of Nonlinear Dynamics (SINDy). This paper illustrates the importance of accurately determining the system's limit cycle position in phase space for identifying sparse and effective models. We introduce a method for identifying the limit cycle position and the system's nullclines by applying SINDy to datasets adjusted with various offsets. This approach is evaluated using three criteria: model complexity, coefficient of determination, and generalization error. We applied this method to several models: the oscillatory FitzHugh-Nagumo model, a more complex model consisting of two coupled cubic differential equations with a single stable state, and a multistable model of glycolytic oscillations. Our results confirm that incorporating detailed information about the limit cycle in phase space enhances the accuracy of model identification in oscillatory systems.e space can improve the success of model identification efforts in oscillatory systems.
description: 11 pages, 8 figures
Quadrature Coherence Scale of Linear Combinations of Gaussian Functions in Phase Space
Creators: name: Hertz, Anaelle
name: Goldberg, Aaron Z.
name: Heshami, Khabat
Publisher: name: arXiv
Year: 2024
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The quadrature coherence scale (QCS) is a recently introduced measure that was shown to be an efficient witness of nonclassicality. It takes a simple form for pure and Gaussian states, but a general expression for mixed states tends to be prohibitively unwieldy. In this paper, we introduce a method for computing the quadrature coherence scale of quantum states characterized by Wigner functions expressible as linear combinations of Gaussian functions. Notable examples within this framework include cat states, GKP states, and states resulting from Gaussian transformations, measurements, and breeding protocols. In particular, we show that the quadrature coherence scale serves as a valuable tool for examining the scalability of nonclassicality in the presence of loss. Our findings lead us to put forth a conjecture suggesting that, subject to 50% loss or more, all pure states lose any QCS-certifiable nonclassicality. We also consider the quadrature coherence scale as a measure of quality of the output state of the breeding protocol.
description: Added a clarification in the abstract Improved figures. One section added to compare with other nonclassicality measures
Effective model and $s_\pm$-wave superconductivity in trilayer nickelate La$_4$Ni$_3$O$_{10}$
Creators: name: Yang, Qing-Geng
name: Jiang, Kai-Yue
name: Wang, Da
name: Lu, Hong-Yan
name: Wang, Qiang-Hua
Publisher: name: arXiv
Year: 2024
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The recent discovery of bulk superconductivity in trilayer nickelate La$_4$Ni$_3$O$_{10}$ with the critical temperature $T_c$ near $30$K under high pressure is attracting a new wave of research interest, after the breakthrough of bilayer La$_3$Ni$_2$O$_7$ with $T_c$ near $80$K. The similarities and differences of electronic structure and superconducting mechanism in these two systems are urgent theoretical issues. In this Letter, we study the electronic band structure and construct a minimal trilayer tight-binding model for the high-pressure phase of La$_4$Ni$_3$O$_{10}$ in terms of the nickel $3d_{x^2-y^2}$ and $3d_{3z^2-r^2}$ orbitals, and study the superconducting mechanism due to local Coulomb interactions by the unbiased functional renormalization group. We find antiferromagnetic correlations between the outer layers instead of neighboring ones, apart from the inplane correlations. The effective interaction induces Cooper pairing with the $s_\pm$-wave symmetry, which changes sign across the Fermi pockets. We find $T_c$ in La$_4$Ni$_3$O$_{10}$ is systematically lower than that in La$_3$Ni$_2$O$_7$, and electron doping can enhance $T_c$.
description: 4 pages, 4 figures, 1 table
Blackbody heat capacity at constant pressure
Creators: name: Moreira, E. S.
Publisher: name: arXiv
Year: 2024
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: At first glance, the title of this work seems to be improper. And the reason is well known. Since blackbody pressure depends only on temperature, one cannot take the derivative of the thermodynamic quantities with respect to one of them, keeping the other constant. That is, the heat capacity at constant pressure, $C_{P}$, as well as, the coefficient of thermal expansion, $α$, and the isothermal compressibility, $κ_{T}$, are ill-defined quantities. This work will show that when the perfect conducting nature of the walls of a blackbody cavity is taken into account, $C_{P}$, $α$ and $κ_{T}$ are in fact well defined, and they are related by the usual thermodynamic relations, as expected. Two geometries will be considered, namely, a spherical shell and a cubic box. It will be shown that $C_{P}$, $α$ and $κ_{T}$ depend very much on the geometry of the cavity. Issues regarding thermodynamic stability will be addressed, revealing that they also depend on the cavity's geometry. It is argued that these findings may be amenable to experimental verification.
description: 8 pages, no figures. Version accepted for publication in JSTAT
Amphitritides Augener 1924
Creators: name: Mikac, Barbara
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Terebellida
Terebellidae
Amphitritides

description: Genus Amphitritides Augener, 1924
Amphitritides gracilis (Grube 1860)
DISTRIBUTION: NA, CA, SA.
LITERATURE RECORDS: Carus 1884; Graeffe 1905; Meštrov 1957; Marcuzzi 1972; Katzmann 1973a, 1983; Požar- Domac 1994; Zahtila 1995; Zavodnik & Kovačić 2000; Simonini et al. 2004; Solis-Weiss et al. 2004; Casellato & Stefanon 2008; Castelli et al. 2008.
NEW RECORDS: BM11, BM12, BM13, BM17, BM34, BM37, BM52, BM53, BM66, BM77, BM91, BM97. OTHER REPORTED NAMES: Amphitrite gracilis (Grube 1860).
description: Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on page 141, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/244663
Piecewise SOS-Convex Moment Optimization and Applications via Exact Semi-Definite Programs
Creators: name: Huang, Queenie Yingkun
name: Jeyakumar, Vaithilingam
name: Li, Guoyin
Publisher: name: arXiv
Year: 2024
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 90C22, 90C26

description: This paper presents exact Semi-Definite Program (SDP) reformulations for infinite-dimensional moment optimization problems involving a new class of piecewise Sum-of-Squares (SOS)-convex functions and projected spectrahedral support sets. These reformulations show that solving a single SDP finds the optimal value and an optimal probability measure of the original moment problem. This is done by establishing an SOS representation for the non-negativity of a piecewise SOS-convex function over a projected spectrahedron. Finally, as an application and a proof-of-concept illustration, the paper presents numerical results for the Newsvendor and revenue maximization problems with higher-order moments by solving their equivalent SDP reformulations. These reformulations promise a flexible and efficient approach to solving these models. The main novelty of the present work in relation to the recent research lies in finding the solution to moment problems, for the first time, with piecewise SOS-convex functions from their numerically tractable exact SDP reformulations.
description: Moment Optimization; Sum-of-Squares Convex Polynomials; Piecewise Functions; Generalized Moment Problems; Semi-Definite Programming
Learning protein-ligand unbinding pathways via single-parameter community detection
Creators: name: Tänzel, Victor
name: Jäger, Miriam
name: Wolf, Steffen
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: Biomolecules (q-bio.BM)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Understanding the dynamics of biomolecular complexes, e.g., of protein-ligand (un)binding, requires the understanding of paths such systems take between metastable states. In MD simulation data, paths are usually not observable per se, but need to be inferred from simulation trajectories. Here we present a novel approach to cluster trajectories based on a community detection algorithm that requires the definition of only a single free parameter. Using the streptavidin-biotin complex as benchmark system and the A\textsubscript{2a} adenosine receptor in complex with the inhibitor ZM241385 as an elaborate application, we demonstrate how such clusters of trajectories correspond to pathways, and how the approach helps in the identification of reaction coordinates for a considered (un)binding process.
description: This preprint is the unedited version of a manuscript that has been published as peer-reviewed article by J. Chem. Theory Comput. and can be downloaded for private use only. Copyright with the journal, ACS and the authors
Eupolymnia Verrill 1900
Creators: name: Mikac, Barbara
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Terebellida
Terebellidae
Eupolymnia

description: Genus Eupolymnia Verrill, 1900
Eupolymnia nebulosa (Montagu, 1818)
DISTRIBUTION: NA, CA, SA.
LITERATURE RECORDS: Grube 1861; Lorenz 1863; Grube 1864; Stossich 1883; Carus 1884; Graeffe 1905; Vatova 1928; Fauvel 1934; Gamulin-Brida et al. 1968; Bellan 1969; Banse 1970; Zavodnik 1971; Katzmann 1971, 1972; Marcuzzi 1972; Matjašić & Štirn 1975; Velimirov & Sint 1975; Vaccarella et al. 1981; Vrišer et al. 1981; Avčin & Vrišer 1983; Fassari 1983; Stjepčević et al. 1984; Požar-Domac 1986; Aleffi et al. 1988; Belamarić & Šerman 1989; Špan et al. 1989; Crema et al. 1991; Požar-Domac 1994; Zahtila 1995; Zavodnik & Kovačić 2000; Solis- Weiss et al. 2004; Zavodnik et al. 2006; Solis-Weiss et al. 2007; Casellato & Stefanon 2008; Castelli et al. 2008. OTHER REPORTED NAMES: Terebella nebulosa Montagu, 1818; Polymnia nebulosa (Montagu, 1818).
Eupolymnia nesidensis (Delle Chiaje, 1822)
DISTRIBUTION: NA, CA, SA.
LITERATURE RECORDS: Grube 1861, 1864; Stossich 1876, 1883; Carus 1884; Graeffe 1905; Bellan 1969; Zavodnik 1971; Marcuzzi 1972; Katzmann 1972, 1973a; Gamulin-Brida 1974; Amoureux 1983c; Fassari 1983; Katzmann 1983; Požar-Domac 1994; Crema et al. 2001; Castelli et al. 2008. OTHER REPORTED NAMES: Terebella danielsseni Malmgren, 1866; Polymnia nesidensis (Delle Chiaje, 1828); Terebella lutea Grube 1855.
description: Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on page 141, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/244663
Probing the interaction energy of two $^{85}$Rb atoms in an optical tweezer via spin-motion coupling
Creators: name: Zhuang, Jun
name: Wang, Kun-Peng
name: Wang, Peng-Xiang
name: Wei, Ming-Rui
name: Mamat, Bahtiyar
name: Sheng, Cheng
name: Xu, Peng
name: Liu, Min
name: Wang, Jin
name: He, Xiao-Dong
name: Zhan, Ming-Sheng
Publisher: name: arXiv
Year: 2024
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The inherent polarization gradients in tight optical tweezers can be used to couple the atomic spins to the two-body motion under the action of a microwave spin-flip transition, so that such a spin-motion coupling offers an important control knob on the motional states of optically trapped two colliding atoms. Here, after preparing two elastically scattering $^{85}$Rb atoms in the three-dimensional ground-state in the optical tweezer, we employed this control in order to probe the colliding energies of elastic and inelastic channels. The combination of microwave spectra and corresponding s-wave pseudopotential model allows us to infer the effect of the state-dependent trapping potentials on the elastic colliding energies, as well as to reveal how the presence of inelastic interactions affects elastic part of the relative potential. Our work shows that the spin-motion coupling in a tight optical tweezer expand the experimental toolbox for fundamental studies of ultracold collisions in the two body systems with reactive collisions, and potentially for that of more complex interactions, such as optically trapped atom-molecule and molecule-molecule interactions.
description: 8 pages, 5 figures
Phase transition to turbulence via moving fronts
Creators: name: Gomé, Sébastien
name: Rivière, Aliénor
name: Tuckerman, Laurette S.
name: Barkley, Dwight
Publisher: name: arXiv
Year: 2024
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Directed percolation (DP), a universality class of continuous phase transitions, has recently been established as a possible route to turbulence in subcritical wall-bounded flows. In canonical straight pipe or planar flows, the transition occurs via discrete large-scale turbulent structures, known as puffs in pipe flow or bands in planar flows, which either self-replicate or laminarize. However, these processes might not be universal to all subcritical shear flows. Here, we design a numerical experiment that eliminates discrete structures in plane Couette flow and show that it follows a different, simpler transition scenario: turbulence proliferates via expanding fronts and decays via spontaneous creation of laminar zones. We map this phase transition onto a stochastic one-variable system. The level of turbulent fluctuations dictates whether moving-front transition is discontinuous, or continuous and within the DP universality class, with profound implications for other hydrodynamic systems.
Understanding the Sampling Algorithm for Watt Spectrum
Creators: name: Miao, Jilang
name: Jin, Miaomiao
Publisher: name: arXiv
Year: 2024
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We provide details in understanding the Watt spectrum sampling method. The algorithm is given in "R12" from "3rd Monte Carlo Sampler" without detailed derivation. We rederive the algorithm by optimizating the sampling efficiency of the rejection method.
Lanice Malmgren 1866
Creators: name: Mikac, Barbara
Publisher: name: Zenodo
Year: 2015
Subjects: Biodiversity
Taxonomy
Animalia
Annelida
Polychaeta
Terebellida
Terebellidae
Lanice

description: Genus Lanice Malmgren, 1866
Lanice conchilega (Pallas, 1766)
DISTRIBUTION: NA, CA, SA.
LITERATURE RECORDS: Lorenz 1863; Carus 1884; Graeffe 1905; Marcuzzi 1972; Avčin et al. 1974; Matjašić & Štirn 1975; Zavodnik et al. 1985; Požar-Domac 1986; Ambrogi et al. 1987; Zavodnik & Vidaković 1987; Aleffi et al. 1988; Špan et al. 1989; Gherardi et al. 1993; Požar-Domac 1994; Zahtila 1995, 1997; Zavodnik & Kovačić 2000; Crema et al. 2001; Orel et al. 2001; Piscitelli et al. 2001; Aleffi et al. 2003; Simonini et al. 2007; Castelli et al. 2008.
NEW RECORDS: BM50, BM53, BM99.
OTHER REPORTED NAMES: Terebella conchylega (Pallas, 1766); Lanice conchylega (Pallas, 1766).
description: Published as part of Mikac, Barbara, 2015, A sea of worms: polychaete checklist of the Adriatic Sea, pp. 1-172 in Zootaxa 3943 (1) on pages 141-142, DOI: 10.11646/zootaxa.3943.1.1, http://zenodo.org/record/244663