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36 papers · 2 filters
Quantum Zeno switch for single-photon coherent transport
Lan Zhou, S. Yang, Yu-xi Liu +2
Using a dynamical quantum Zeno effect, we propose a general approach to control the coupling between a two-level system (TLS) and its surroundings, by modulating the energy level s…
Continuous-variable quantum information processing with squeezed states of light
Hidehiro Yonezawa, Akira Furusawa
We investigate experiments of continuous-variable quantum information processing based on the teleportation scheme. Quantum teleportation, which is realized by a two-mode squeezed…
Coherence of single spins coupled to a nuclear spin bath of varying density
N. Mizuochi, P. Neumann, F. Rempp +9
The dynamics of single electron and nuclear spins in a diamond lattice with different 13C nuclear spin concentration is investigated. It is shown that coherent control of up to thr…
Entanglement-assisted communication of classical and quantum information
Min-Hsiu Hsieh, Mark M. Wilde
We consider the problem of transmitting classical and quantum information reliably over an entanglement-assisted quantum channel. Our main result is a capacity theorem that gives a…
Erasing Distinguishability Using Quantum Frequency Up-Conversion
Hiroki Takesue
The frequency distinguishability of two single photons was successfully erased using single photon frequency up-conversion. A frequency non-degenerate photon pair generated via spo…
Towards a unified approach to information-disturbance tradeoffs in quantum measurements
Francesco Buscemi, Michal Horodecki
We show that the global balance of information dynamics for general quantum measurements given in [F. Buscemi, M. Hayashi, and M. Horodecki, Phys.Rev.Lett. 100, 210504 (2008)] make…