Routing thermal noise through quantum networks

André Xuereb; Matteo Aquilina; Shabir Barzanjeh

doi:10.1117/12.2309928

4 May 2018 Routing thermal noise through quantum networks

André Xuereb, Matteo Aquilina, Shabir Barzanjeh

Proceedings Volume 10672, Nanophotonics VII; 106721N (2018) https://doi.org/10.1117/12.2309928
Event: SPIE Photonics Europe, 2018, Strasbourg, France

Abstract

There is currently significant interest in operating devices in the quantum regime, where their behaviour cannot be explained through classical mechanics. Quantum states, including entangled states, are fragile and easily disturbed by excessive thermal noise. Here we address the question of whether it is possible to create non-reciprocal devices that encourage the flow of thermal noise towards or away from a particular quantum device in a network. Our work makes use of the cascaded systems formalism to answer this question in the affirmative, showing how a three-port device can be used as an effective thermal transistor, and illustrates how this formalism maps onto an experimentally-realisable optomechanical system. Our results pave the way to more resilient quantum devices and to the use of thermal noise as a resource.

Conference Presentation

Citation Download Citation

André Xuereb, Matteo Aquilina, and Shabir Barzanjeh "Routing thermal noise through quantum networks", Proc. SPIE 10672, Nanophotonics VII, 106721N (4 May 2018); https://doi.org/10.1117/12.2309928

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