Quantum statistical properties of a quantum theory of optical bistability

1984 ◽  
Vol 313 (1525) ◽  
pp. 439-443
Keyword(s):  
Quantum Theory ◽  
Optical Bistability ◽  
Statistical Properties ◽  
Photon Statistics ◽  
Lower Branch ◽  
Quantum Statistical ◽  
Dicke Model ◽  
Bose Einstein ◽  
Input Curve

The strictly quantum driven Dicke model of N two-level atoms on the same site shows conventional optical bistability if and only if cavity feedback is included. In this model we find that for N ->oo the photon statistics of the transmitted field are Poisson on the lower branch of the output-input curve, but on the upper branch approach Bose-Einstein in the hysteresis region, with reversion to Poisson only for very strong input fields.

Quantum statistical properties of free-electron laser with ion-channel guiding

2012 ◽  
Vol 78 (5) ◽  
pp. 537-544 ◽  
Author(s):  
H. MEHDIAN ◽  
M. ALIMOHAMADI ◽  
A. HASANBEIGI
Keyword(s):  
Ion Channel ◽  
Free Electron ◽  
Statistical Properties ◽  
Photon Statistics ◽  
Small Signal ◽  
Free Electron Lasers ◽  
Approximation Solution ◽  
Quantum Approach ◽  
Constants Of Motion ◽  
Quantum Statistical

AbstractThe operation of the quantum free-electron lasers (QFELs) with a helical wiggler and in the presence of ion-channel guiding is considered. The quantum Hamiltonian of single particle has been derived in the Bambini-Renieri (BR) frame. Time dependent wave function and three constants of motion are obtained. The Raman-Nath equation (RNE) and its approximation solution have been calculated, and then the resulted solution has been employed to obtain the quantum gain, photon statistics parameter and squeezing parameter. A quantum approach has been used to get quantum statistical properties of the FEL and the photon gain formula for the small signal gain limit. It is found that the ion-channel guiding decreases the squeezing. Also, the conditions for positive (bunching) and negative (antibunching) gain have been studied numerically.

scholarly journals Observation of the modification of quantum statistics of plasmonic systems

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Chenglong You ◽  
Mingyuan Hong ◽  
Narayan Bhusal ◽  
Jinnan Chen ◽  
Mario A. Quiroz-Juárez ◽  
...  
Keyword(s):  
Quantum Theory ◽  
Statistical Properties ◽  
Quantum Statistics ◽  
Light Sources ◽  
Nanoscale Systems ◽  
Excitation Mode ◽  
Quantum Statistical ◽  
Multiparticle Systems ◽  
Multi Mode ◽  
Multiparticle Scattering

AbstractFor almost two decades, researchers have observed the preservation of the quantum statistical properties of bosons in a large variety of plasmonic systems. In addition, the possibility of preserving nonclassical correlations in light-matter interactions mediated by scattering among photons and plasmons stimulated the idea of the conservation of quantum statistics in plasmonic systems. It has also been assumed that similar dynamics underlie the conservation of the quantum fluctuations that define the nature of light sources. So far, plasmonic experiments have been performed in nanoscale systems in which complex multiparticle interactions are restrained. Here, we demonstrate that the quantum statistics of multiparticle systems are not always preserved in plasmonic platforms and report the observation of their modification. Moreover, we show that optical near fields provide additional scattering paths that can induce complex multiparticle interactions. Remarkably, the resulting multiparticle dynamics can, in turn, lead to the modification of the excitation mode of plasmonic systems. These observations are validated through the quantum theory of optical coherence for single- and multi-mode plasmonic systems. Our findings unveil the possibility of using multiparticle scattering to perform exquisite control of quantum plasmonic systems.

Quantum Theory of Excitonic Optical Bistability

1984 ◽  
pp. 231-239
Author(s):  
M. L. Steyn-Ross ◽  
C. W. Gardiner
Keyword(s):  
Quantum Theory ◽  
Optical Bistability

BOSE–EINSTEIN STATISTICS IN A DISCRETE SPECTRUM TRAP

2004 ◽  
Vol 18 (04n05) ◽  
pp. 555-563 ◽  
Author(s):  
ENRICO CELEGHINI ◽  
MARIO RASETTI
Keyword(s):  
Critical Temperature ◽  
Low Temperature ◽  
Specific Heat ◽  
Discrete Spectrum ◽  
Harmonic Trap ◽  
Statistical Properties ◽  
Bose Einstein ◽  
The Continuum

A detailed description of the statistical properties of a system of bosons in a harmonic trap at low temperature, which is expected to bear on the process of BE condensation, is given resorting only to the basic postulates of Gibbs and Bose, without assuming equipartition nor continuum statistics. Below Tc such discrete spectrum theory predicts for the thermo-dynamical variables a behavior different from the continuum case. In particular a new critical temperature Td emerges where the specific heat exhibits a λ-like spike.

Quantum statistical properties of higher-order non-linear optical processes

1977 ◽  
Vol 27 (5) ◽  
pp. 487-497 ◽  
Author(s):  
V. Peřinová ◽  
J. Peřina ◽  
L. Knesel
Keyword(s):  
Higher Order ◽  
Statistical Properties ◽  
Non Linear ◽  
Quantum Statistical ◽  
Linear Optical
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