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- University of OxfordGB52 papers
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6 papers · 2 filters
"Mechano-optics": An optomechanical quantum simulator
David Edward Bruschi, André Xuereb
A widely-known paradigm in optomechanical systems involves coupling the square of the position of a mechanical oscillator to an electromagnetic field. We discuss how, in the so-cal…
Optimal estimation of the optomechanical coupling strength
József Zsolt Bernád, Claudio Sanavio, André Xuereb
We apply the formalism of quantum estimation theory to obtain information about the value of the nonlinear optomechanical coupling strength. In particular, we discuss the minimum m…
An entropy production based method for determining the position diffusion's coefficient of a quantum Brownian motion
J. Z. Bernád, G. Homa, M. A. Csirik
Quantum Brownian motion of a harmonic oscillator in the Markovian approximation is described by the respective Caldeira-Leggett master equation. This master equation can be brought…
Hybrid quantum repeater based on resonant qubit-field interactions
J. Z. Bernád
We propose a hybrid quantum repeater based on ancillary coherent field states and material qubits coupled to optical cavities. For this purpose, resonant qubit-field interactions a…
Manipulating the flow of thermal noise in quantum devices
Shabir Barzanjeh, Matteo Aquilina, André Xuereb
There has been significant interest recently in using complex quantum systems to create effective nonreciprocal dynamics. Proposals have been put forward for the realization of art…
Charged String Tensor Networks
Jacob Biamonte
Tensor network methods provide an intuitive graphical language to describe quantum states, channels, open quantum systems and a class of numerical approximation methods that effici…