  In developing the global Quantum Internet, quantum communication with
low-Earth-orbit satellites will play a pivotal role. Such communication will
need to be two way: effective not only in the satellite-to-ground (downlink)
channel but also in the ground-to-satellite channel (uplink). Given that losses
on this latter channel are significantly larger relative to the former,
techniques that can exploit the superior downlink to enhance quantum
communication in the uplink should be explored. In this work we do just that -
exploring how continuous variable entanglement in the form of two-mode squeezed
vacuum (TMSV) states can be used to significantly enhance the fidelity of
ground-to-satellite quantum-state transfer relative to direct uplink-transfer.
More specifically, through detailed phase-screen simulations of beam evolution
through turbulent atmospheres in both the downlink and uplink channels, we
demonstrate how a TMSV teleportation channel created by the satellite can be
used to dramatically improve the fidelity of uplink coherent-state transfer
relative to direct transfer. We then show how this, in turn, leads to the
uplink-transmission of a higher alphabet of coherent states. Additionally, we
show how non-Gaussian operations acting on the received component of the TMSV
state at the ground station can lead to even further enhancement. Since TMSV
states can be readily produced in situ on a satellite platform and form a
reliable teleportation channel for most quantum states, our work suggests
future satellites forming part of the emerging Quantum Internet should be
designed with uplink-communication via TMSV teleportation in mind.
