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7 papers · 2 filters
Fourier Transform Quantum State Tomography
Mohammadreza Mohammadi, Agata M. Branczyk, Daniel F. V. James
We propose a technique for performing quantum state tomography of photonic polarization-encoded multi-qubit states. Our method uses a single rotating wave plate, a polarizing beam…
Incoherent Excitation of Thermally Equilibrated Open Quantum Systems
Leonardo A. Pachon, Paul Brumer
Under natural conditions, excitation of biological molecules, which display non-unitary open system dynamics, occurs via incoherent processes such as temperature changes or irradia…
A proposal for a scalable universal bosonic simulator using individually trapped ions
Hoi-Kwan Lau, Daniel F. V. James
We describe a possible architecture to implement a universal bosonic simulator (UBS) using trapped ions. Single ions are confined in individual traps, and their motional states rep…
Continuous-Variable Quantum Key Distribution with Entanglement in the Middle
Christian Weedbrook
We analyze the performance of continuous-variable quantum key distribution protocols where the entangled source originates not from one of the trusted parties, Alice or Bob, but fr…
Temperature crossover of decoherence rates in chaotic and regular bath dynamics
A. S. Sanz, Y. Elran, P. Brumer
The effect of chaotic bath dynamics on the decoherence of a quantum system is examined for the vibrational degrees of freedom of a diatomic molecule in a realistic, constant temper…
Amplification of non-Markovian decay due to bound state absorption into continuum
Savannah Garmon, Tomio Petrosky, Lena Simine +1
It is known that quantum systems yield non-exponential (power law) decay on long time scales, associated with continuum threshold effects contributing to the survival probability f…