Zobrazeno 1 - 10
of 19
pro vyhledávání: '"R. Y. Teh"'
Publikováno v:
Physical Review Research, Vol 2, Iss 4, p 043387 (2020)
A cat state is a superposition of two coherent states with amplitudes α_{0} and −α_{0}. Recent experiments create cat states in a microwave cavity field using superconducting circuits. As with degenerate parametric oscillation (DPO) in an adiabat
Externí odkaz:
https://doaj.org/article/5dd3704a8c0d400099728cf662f8edd7
Akademický článek
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Autor:
Margaret D. Reid, R. Y. Teh
Publikováno v:
Physical Review A. 102
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
Publikováno v:
Physical Review A. 100
We discuss general properties of the equilibrium state of parametric down-conversion in superconducting quantum circuits with detunings and Kerr anharmonicities, in the strongly nonlinear regime. By comparing moments of the steady state and those of
Autor:
R. Y. Teh, Margaret D. Reid
We derive conditions in the form of inequalities to detect the genuine $N$-partite entanglement of $N$ systems. The inequalities are expressed in terms of variances of spin operators, and can be tested by local spin measurements performed on the indi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a35401d0a145cedfb74adaa4a9215669
http://arxiv.org/abs/1904.12121
http://arxiv.org/abs/1904.12121
We discuss general properties of discrete time quantum symmetry breaking in degenerate parametric oscillators. Recent experiments in superconducting quantum circuit with Josephson junction nonlinearities give rise to new properties of strong parametr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a5403bdb59a5b832623e6fa98e6ae0e3
http://arxiv.org/abs/1904.05010
http://arxiv.org/abs/1904.05010
Publikováno v:
Physical Review A. 98
We analyze a method for the creation, storage, and retrieval of optomechanical Schr\"odinger cat states, in which there is a quantum superposition of two distinct macroscopic states of a mechanical oscillator. In the quantum memory protocol, an optic
Autor:
L. Rosales-Zárate, R. Y. Teh, Bryan J. Dalton, Andrei Sidorov, Bogdan Opanchuk, Margaret D. Reid, Peter D. Drummond
Using criteria based on superselection rules, we analyze the quantum correlations between the two condensate modes of the Bose-Einstein condensate interferometer of Egorov et al. [Phys. Rev. A 84, 021605 (2011)]. In order to determine the two-mode co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::99172b4e9cb30436235ce7d0dde234c3
http://arxiv.org/abs/1811.01387
http://arxiv.org/abs/1811.01387
Autor:
R. Y. Teh, Peter D. Drummond, Margaret D. Reid, Paulo E. M. F. Mendonca, Yeong-Cherng Liang, Yu Hao Yeh
Applications of quantum technology often require fidelities to quantify performance. These provide a fundamental yardstick for the comparison of two quantum states. While this is straightforward in the case of pure states, it is much more subtle for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3188b581780d70ba3d69d600e3034149
http://arxiv.org/abs/1810.08034
http://arxiv.org/abs/1810.08034