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pro vyhledávání: '"He, Q Y"'
Autor:
Zheng, S. S., Sun, F. X., Asjad, M., Zhang, G. W., Huo, J., Li, J., Zhou, J., Ma, Z., He, Q. Y.
We propose a novel and experimentally feasible approach to achieve high-efficiency ground-state cooling of a mechanical oscillator in an optomechanical system under the deeply unresolved sideband condition with the assistance of both intracavity and
Externí odkaz:
http://arxiv.org/abs/2403.01179
Akademický článek
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Autor:
Teh, R. Y., Sun, F. -X., Polkinghorne, R. E. S., He, Q. Y., Gong, Q., Drummond, P. D., Reid, M. D.
Publikováno v:
Phys. Rev. A 101, 043807 (2020)
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 the signal loss, this is no longer true over timescales muc
Externí odkaz:
http://arxiv.org/abs/1910.01298
Publikováno v:
Phys. Rev. Lett. 124, 053602 (2020)
We show that parity-time ($\mathcal{PT}$) symmetry can be spontaneously broken in the recently reported energy level attraction of magnons and cavity photons. In the $\mathcal{PT}$-broken phase, magnon and photon form a high-fidelity Bell state with
Externí odkaz:
http://arxiv.org/abs/1905.11117
Autor:
Reid, M. D., He, Q. Y.
Publikováno v:
Phys. Rev. Lett. 123, 120402 (2019)
Evidence for Bell's nonlocality is so far mainly restricted to microscopic systems, where the elements of reality that are negated predetermine results of measurements to within one spin unit. Any observed nonlocal effect (or lack of classical predet
Externí odkaz:
http://arxiv.org/abs/1905.10148
Publikováno v:
Phys. Rev. B 101, 014419 (2020)
Magnon-photon coupling has been experimentally realized inside a cavity and the emerging field known as cavity spintronics has attracted significant attention for its potential docking with quantum information science. However, one seldom knows wheth
Externí odkaz:
http://arxiv.org/abs/1903.02484
Publikováno v:
Phys. Rev. B 100, 014517 (2019)
The spontaneous formation of lattice structure of quantized vortices is a characteristic feature of superfluidity in closed systems under thermal equilibrium. In exciton-polariton Bose-Einstein condensate, which is a typical example of macroscopic qu
Externí odkaz:
http://arxiv.org/abs/1901.03172
Publikováno v:
Phys. Rev. A 97, 012307 (2018)
Characterizing quantum phase transitions through quantum correlations has been deeply developed for a long time, while the connections between dynamical phase transitions (DPTs) and quantum entanglement is not yet well understood. In this work, we sh
Externí odkaz:
http://arxiv.org/abs/1711.00766
Publikováno v:
New J. Phys. 19, 123039 (2017)
The theory of phase control of coherence, entanglement and quantum steering is developed for an optomechanical system composed of a single mode cavity containing a partially transmitting dielectric membrane and driven by short laser pulses. The close
Externí odkaz:
http://arxiv.org/abs/1706.04474
Publikováno v:
Phys. Rev. A 97, 042114 (2018)
We construct quantifiable generalisations of Leggett-Garg tests for macro/ mesoscopic realism and noninvasive measurability that apply when not all outcomes of measurement can be identified as arising from one of two macroscopically distinguishable s
Externí odkaz:
http://arxiv.org/abs/1612.05726