## 1 Introduction: \"Information is Physical\"
In particular, our particular interest is on experimentally accessible energetic and thermodynamical consequences of quantum correlations, as, e.g., the work costs for erasing quantum information. In specific quantum cases characterized by negative conditional entropy [12], these costs are predicted to be even negative [13]. The field of QoC is already very broad; see, e.g., [14] and references therein. But until now it remained rather unnoticed in most experimental fields (with exception of quantum optics). The focus of this paper is on the experimental relevance of general theory for concrete scattering experiments--interpretational issues concerning basic quantum entities and/or purely theoretical derivations play only a minor role here. In other words, we concentrate on the connections between modern theory and concrete experimental fields, and propose a new group of effects showing \"anomalous\" energy and/or momentum transfers, having in mind that they may also have technological applications. Specifically, we investigate the aforementioned counter-intuitive INS results from H\({}_{2}\) single molecules in C-nanotubes (and another nano-porous metal-organic material), as obtained with the aid of a new-generation two-dimensional spectrometer (like, e.g., ARCS [15] or MARI [16]). We present a natural, straightforward theoretical interpretation in the theoretical frame of QTD and QIT. Consequently, this demonstrates that these quantum-theoretical frameworks are not only very active areas of present-day research, but they also provide new conceptual ideas and techniques for various experimental (and perhaps also technological) applications. More details of general CoQ theory underlying our investigations, of the theoretical derivations, and further experimental results, may be found in the original reference [17] and the most recent review article [18]. The Elitzur-Vaidman Effect, Google's Quantum Processor, and the Physical Meaning of the Quantum State Vector  
One overarching open question of the interpretation of quantum physics--the \"meaning\" of the wavefunction, see [19] for a recent review--appears in new light after recent progress achieved through experiments with single probe systems (particles or photons). The possibility that the wavefunction (or, the state vector) is an epistemological entity, i.e., solely a mathematical quantity representing the observer's knowledge, is often associated with the so-called \"orthodox\" interpretation of quantum mechanics. An ingredient of this is to consider the state vector to be associated with an ensemble of quantum systems, but not with individual ones. The alternative viewpoint (which emerged with the aid of new experimental techniques using single quantum particles or photons) is to regard the state vector as an ontological entity, or a \"real\" physical entity. Clearly, this viewpoint was unacceptable for the overwhelming majority of physicists in the last century. In this context, we may emphasize the significance of the counter-intuitive Elitzur-Vaidman effect [20] concerning interaction-free measurements (IFM, popularly also known as \"bomb tester\"), which revealed the ability to obtain experimental information about an object's presence in some position of one path of a Mach-Zehnder interferometer (MZI), without ever \"touching\" it. In the conceptual frame of classical physics, this is paradoxical. Namely, in successful interaction-free \"bomb detections\", absolutely no physical quantity--e.g., energy, momentum, spin, force, etc.--has been exchanged between the object and the probe particle. However, this physical information (here: bomb detection) cannot be gained \"at no costs\"; the associated \"costs\" are provided by the photon's (particle's) wavefunction, following the principles of IFM.