Zobrazeno 1 - 10
of 13
pro vyhledávání: '"R. E. S. Polkinghorne"'
We consider geometric phases of mobile quantum vortices in superfluid Bose-Einstein condensates. Haldane and Wu [Phys. Rev. Lett. 55, 2887 (1985)] showed that the geometric phase, $\gamma_{\mathcal C}=2\pi N_{\mathcal C}$, of such a vortex is determi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a69fd58b356ea6ba3ea5bf5be72dc7f8
Autor:
Margaret D. Reid, Qihuang Gong, Qiongyi He, R. Y. Teh, Feng-Xiao Sun, Peter D. Drummond, R. E. S. Polkinghorne
A cat state is formed as the steady-state solution for the signal mode of an ideal degenerate parametric oscillator, in the limit of negligible single-photon signal loss. In the presence of signal loss, this is no longer true over timescales much lon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::989613ac624927f241f0f5c862aa7ede
http://arxiv.org/abs/1910.01298
http://arxiv.org/abs/1910.01298
Phase-space methods allow one to go beyond the mean-field approximation to simulate the quantum dynamics of interacting fields. Here, we obtain a technique for initializing either Wigner or positive-P phase-space simulations of Bose-Einstein condensa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4ca274c0a188f79db6569d4d7fc89d46
http://arxiv.org/abs/1810.12984
http://arxiv.org/abs/1810.12984
Publikováno v:
Physical Review Letters. 83:2095-2099
We investigate the efficacy with which polarization entanglement can be teleported using a continuous measurement scheme. We show that by using the correct gain for the classical channel the degree of violation of locality that can be demonstrated (u
A procedure is described whereby a linearly coupled spinor Bose condensate can be used as a physically accessible quantum simulator of the early universe. In particular, an experiment to generate an analog of an unstable vacuum in a relativistic scal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::051e14430560110772b954d20401bdae
http://arxiv.org/abs/1305.5314
http://arxiv.org/abs/1305.5314
Autor:
Bogdan Opanchuk, Margaret D. Reid, Peter D. Drummond, R. E. S. Polkinghorne, L. Rosales-Zárate, Qiongyi He
We review recent developments in the theory of quantum dynamics in ultra-cold atomic physics, including exact techniques, but focusing on methods based on phase-space mappings that are appli- cable when the complexity becomes exponentially large. The
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dba4051963d74a855d9fd232a5964aab
http://arxiv.org/abs/1112.0380
http://arxiv.org/abs/1112.0380
We present a new model for the continuous measurement of a coupled quantum dot charge qubit. We model the effects of a realistic measurement, namely adding noise to, and filtering, the current through the detector. This is achieved by embedding the d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8b052afc2221bc559702e9fd7eb470fd
Publikováno v:
Technical Digest. Summaries of Papers Presented at the Quantum Electronics and Laser Science Conference.
Summary form only given. Quantum teleportation is a technique via which the quantum state of a system can be reconstructed at a distant station through the direct transmission of only classical information. This remarkable effect is made possible by
Publikováno v:
Electronics and Structures for MEMS II.
We discuss the conditions under which electromechanical systems, fabricated on a sub micron scale, require a quantum description. We illustrate the discussion with the example of a mechanical electroscope for which the resonant frequency of a cantile
A mechanical electroscope based on a change in the resonant frequency of a cantilever one micron in size in the presence of charge has recently been fabricated. We derive the decoherence rate of a charge superposition during measurement with such a d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::652c1c9ed9029c7d9871b0c506cce7bb