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PT-symmetric phonon laser under gain saturation effect
(The Optical Society, 2020-07-20)
As an analog of optical laser, phonon laser has potential applications in various areas. We study a type of phonon laser implemented by two coupled micro-cavities, one of which carries optical gain medium. The phonon laser ...
Mechanical oscillations frozen on discrete levels by two optical driving fields
(American Physical Society, 2020-07-20)
We report a synchronization phenomenon which is simulated with an optomechanical system driven by two equally strong fields with different frequencies. Once the frequencies of the driving fields are properly matched, the ...
Phonon maser stimulated by spin postselection
(American Physical Society, 2020-06-09)
In a sequence of single spins interacting longitudinally with a mechanical oscillator, and using the micromaser model with random injection, we show that after an appropriate postselection of each spin, a phonon laser ...
Fisher Information, Weak Values and Correlated Noise in Interferometry
(Cornell University, 2019-02-25)
In this article we present an experimental proposal for quantum enhanced estimation of optomechanical parameters. The precision of the estimation is improved by using the technique of weak value amplification, which can ...
Photon cooling by dispersive atom-field coupling with atomic postselection
(Cornell University, 2019-04-16)
We propose, in a Ramsey interferometer, to cool the cavity field to its ground state, starting from a thermal distribution by a dispersive atom-field coupling followed by an atomic postselection. We also analyze the effect ...
Coherence as a measure for non-Markovianity and its applications to color centers in diamond
(American Physical Society, 2019-04-30)
The degree of non-Markovianity of a continuous bath can be quantified by means of the coherence. This simple measure is experimentally accessible through Ramsey spectroscopy, but it is limited to incoherent dynamical maps. ...
Mutual Information and Quantum Discord in Quantum State Discrimination with a Fixed Rate of Inconclusive Outcomes
(MDPI Multidisciplinary Digital Publishing Institute, 2021-01-6)
We studied the mutual information and quantum discord that Alice and Bob share when Bob implements a discrimination with a fixed rate of inconclusive outcomes (FRIO) onto two pure non-orthogonal quantum states, generated ...
Semi-exact solutions of sextic potential plus a centrifugal term
(SPRINGER, 2020-11)
We revisit the one-dimensional quantum system of a sextic potential added with a centrifugal term, V(x)=ax(-2)+bx(2)+cx(4)+dx(6), where the parameters a,b,c and d are arbitrary. We find that its solutions can be expressed ...
Control of interference and diffraction of a three-level atom in a double-slit scheme with cavity fields
(American Physical Society, 2020-09-28)
A double-cavity with a quantum mechanical and a classical field is placed immediately behind a double-slit in order to analyze the wave-particle duality. Both fields have common nodes and antinodes through which a three-level ...
Controlling parameters of the wave-particle duality of a two-level atom in a double-slit scheme with cavity field
(The Optical Society, 2021-01)
A double-slit scheme placed immediately before a standing wave allows one to establish two possible paths for the passage of an atom. Each path matches with a node or antinode of the wave. The atom–field interaction is ...