An Van Nguyen - Profile on Academia.edu (original) (raw)
Related Authors
Graduate Center of the City University of New York
Universidade Estadual Paulista "Júlio de Mesquita Filho"
Uploads
Papers by An Van Nguyen
Systems and methods providing a mobile zero client
Adaptive Computing System with Modular Control, Switching, and Power Supply Architecture
Khuếch đại quang trên cơ sở hiệu ứng tán xạ Raman cưỡng bức trong sợi quang
Physical Review A, 2013
Trio coherent states (TCSs) are non-Gaussian three-mode entangled states which can serve as a use... more Trio coherent states (TCSs) are non-Gaussian three-mode entangled states which can serve as a useful resource for continuous-variable quantum tasks, so their generation is of primary importance. Schemes exist to generate stable TCSs in terms of vibrational motion of a trapped ion inside a crystal. However, to perform quantum communication and distributed quantum computation the states should be shared beforehand among distant parties. That is, their modes should be able to be directed to different desired locations in space. In this work, we propose an experimental setup to generate such free-traveling TCSs in terms of optical fields. Our scheme uses standard physical resources, such as coherent states, balanced beam splitters, phase shifters, nonideal on-off photodetectors, and realistic weak cross-Kerr nonlinearities, without the need of single photons or homodyne or heterodyne measurements. We study the dependences of the fidelity of the state generated by our scheme with respect to the target TCS and the corresponding generation probability for the parameters involved. In theory, the fidelity could be nearly perfect for whatever weak nonlinearities τ and low photodetector efficiency η, provided that the amplitude |α| of an input coherent state is large enough, namely, |α| 5/( √ ητ ).
Systems and methods providing a mobile zero client
Adaptive Computing System with Modular Control, Switching, and Power Supply Architecture
Khuếch đại quang trên cơ sở hiệu ứng tán xạ Raman cưỡng bức trong sợi quang
Physical Review A, 2013
Trio coherent states (TCSs) are non-Gaussian three-mode entangled states which can serve as a use... more Trio coherent states (TCSs) are non-Gaussian three-mode entangled states which can serve as a useful resource for continuous-variable quantum tasks, so their generation is of primary importance. Schemes exist to generate stable TCSs in terms of vibrational motion of a trapped ion inside a crystal. However, to perform quantum communication and distributed quantum computation the states should be shared beforehand among distant parties. That is, their modes should be able to be directed to different desired locations in space. In this work, we propose an experimental setup to generate such free-traveling TCSs in terms of optical fields. Our scheme uses standard physical resources, such as coherent states, balanced beam splitters, phase shifters, nonideal on-off photodetectors, and realistic weak cross-Kerr nonlinearities, without the need of single photons or homodyne or heterodyne measurements. We study the dependences of the fidelity of the state generated by our scheme with respect to the target TCS and the corresponding generation probability for the parameters involved. In theory, the fidelity could be nearly perfect for whatever weak nonlinearities τ and low photodetector efficiency η, provided that the amplitude |α| of an input coherent state is large enough, namely, |α| 5/( √ ητ ).