Results 31 to 40 of about 3,578 (70)

On the coupling of two quantum dots through a cavity mode

, 2010
The effective coupling of two distant quantum dots through virtual photon exchange in a semiconductor microcavity is studied. The experimental conditions for strong coupling and its manifestation in the spectra of emission are analyzed.Comment: 2 pages ...
del Valle, Elena
core   +1 more source

Comment on "Quantum linear Boltzmann equation with finite intercollision time" [PDF]

, 2010
Inconsistencies are pointed out in a recent proposal [L. Diosi, Phys. Rev. A 80, 064104 (2009); arXiv:0905.3908v1] for a quantum version of the classical linear Boltzmann equation.Comment: 3 pages; v3: corresponds to published ...
Bassano Vacchini, J. R. Taylor, K. Huang, Klaus Hornberger   +3 more
core   +2 more sources

Atomic delocalization as a microscopic origin of two-level defects in Josephson junctions

New Journal of Physics, 2015
Identifying the microscopic origins of decoherence sources prevalent in Josephson junction (JJ) based circuits is central to their use as functional quantum devices.
Timothy C DuBois, Salvy P Russo, Jared H Cole   +2 more
doaj   +1 more source

Kondo Resonance of a Microwave Photon

, 2012
We emulate renormalization group models, such as the Spin-Boson Hamiltonian or the anisotropic Kondo model, from a quantum optics perspective by considering a superconducting device.
E. T. Jaynes, K. Le Hur, Karyn Le Hur, U. Weiss   +3 more
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Quantum Zeno effect in atomic spin-exchange collisions [PDF]

, 2008
The suppression of spin-exchange relaxation in dense alkali-metal vapors discovered in 1973 and governing modern atomic magnetometers is here reformulated in terms of quantum measurement theory and the quantum Zeno effect. This provides a new perspective
Allred, Appelt, Baranga, Braginsky, Budker, Erickson, Geremia, Happer, Happer, Happer, Happer, I.K. Kominis, Itano, Katsoprinakis, Katsoprinakis, Kominis, Kominis, Kominis, Kominis, Misra, Nielsen, Streed, Walter   +22 more
core   +1 more source

Quantum tight-binding chains with dissipative coupling

New Journal of Physics, 2015
We present a one-dimensional tight-binding chain of two-level systems coupled only through common dissipative Markovian reservoirs. This quantum chain can demonstrate anomalous thermodynamic behavior contradicting Fourier law.
D Mogilevtsev, G Ya Slepyan, E Garusov, S Ya Kilin, N Korolkova   +4 more
doaj   +1 more source

Geometry of Entanglement Sudden Death: Explicit Examples

, 2008
In open quantum systems, entanglement can vanish faster than coherence. This phenomenon is usually called sudden death of entanglement. In [M. O. Terra Cunha, New J. Phys.
Andrei Yu. Khrennikov, Christopher Fuchs, Gregg Jaeger, Guillaume Adenier, Jan-Åke Larsson, Luigi Accardi, Marcelo O. Terra Cunha, Raphael C. Drumond, Stig Stenholm   +8 more
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Stochastic quantum Zeno by large deviation theory

New Journal of Physics, 2016
Quantum measurements are crucial for observing the properties of a quantum system, which, however, unavoidably perturb its state and dynamics in an irreversible way.
Stefano Gherardini, Shamik Gupta, Francesco Saverio Cataliotti, Augusto Smerzi, Filippo Caruso, Stefano Ruffo   +5 more
doaj   +1 more source

Sudden Death of Entanglement of Two Jaynes-Cummings Atoms

, 2006
We investigate entanglement dynamics of two isolated atoms, each in its own Jaynes-Cummings cavity. We show analytically that initial entanglement has an interesting subsequent time evolution, including the so-called sudden death effect.Comment: 3 pages,
Diosi L, J H Eberly, Jaynes E T, Joos E, Muhammed Yönaç, Ting Yu, Yu T Eberly J H, Yu T Eberly J H, Yönac M Yu T Eberly J H, Zurek W H   +9 more
core   +1 more source

Exact decoherence dynamics of 1/f noise

New Journal of Physics, 2014
In this paper, we investigate the exact decoherence dynamics of a superconducting resonator coupled to an electromagnetic reservoir characterized by $1/f$ noise at finite temperature, where a full quantum description of the environment with $1/{{f}^{x}}$
Md Manirul Ali, Ping-Yuan Lo, Wei-Min Zhang   +2 more
doaj   +1 more source