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PhD Proposal: Maxwell Aifer


Physics : 401

Date & Time

October 25, 2022, 1:00 pm3:00 pm


ADVISOR: Dr. Sebastian Deffner

TITLE: Quantum Thermodynamics of Quantum Optical Devices

ABSTRACT: The ability to control and transport the quantum state of light is an essential ingredient in near-term technologies such as quantum communication networks which promise benefits for society including enhanced security. The tendency of all systems to evolve towards thermal equilibrium makes quantum optical information processing tasks difficult to implement, because these protocols generally require the maintenance and control of states far from equilibrium. The devices used to control the quantum state of light tend to do so with some degree of irreversibility, although it is not understood to what extent this can be avoided, given the constraints of thermodynamics. Traditionally a macroscopic theory, thermodynamics has in recent years been extended to deal with microscopic systems subject to the laws of quantum mechanics, and this developing field is known as quantum thermodynamics. We propose to use the tools of quantum thermodynamics to study dissipation caused by quantum optical devices. We then propose to provide methods of optimally controlling optical quantum states in order to minimize dissipation.