scholarly journals Transiently changing shape of the photon number distribution in a quantum-dot–cavity system driven by chirped laser pulses

2020 ◽  
Vol 101 (20) ◽  
Author(s):  
M. Cosacchi ◽  
T. Seidelmann ◽  
F. Ungar ◽  
M. Cygorek ◽  
A. Vagov ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Photon Number ◽  
Laser Pulses ◽  
Number Distribution ◽  
Cavity System ◽  
Photon Number Distribution

Influence of Path Attacks on Security of Six-State Scheme

2012 ◽  
Vol 263-266 ◽  
pp. 3114-3119
Author(s):  
Yue Hong Peng ◽  
Jia Wang Li ◽  
Jin Hao Liu ◽  
Yu Min Liu
Keyword(s):  
Quantum Channel ◽  
Communication Systems ◽  
Photon Number ◽  
Laser Pulses ◽  
Transmission Distance ◽  
Number Distribution ◽  
Photon Number Distribution

The safety of the six-state scheme in the practical communication systems was studied based on an effective eavesdropping method, which called path attacks adopted by eavesdroppers. In the practical systems, eavesdropper can select appropriate path to eavesdrop on legitimate users to obtain some information. This method will keep photon number distribution in the laser pulses, and the eavesdropper can be hidden by the losses of quantum channel without being detected. The results show that eavesdropper can get more information with the increase of transmission distance and the average number of photons.

scholarly journals Optimal time-resolved photon number distribution reconstruction of a cavity field by maximum likelihood

2012 ◽  
Vol 14 (11) ◽  
pp. 115007 ◽  
Author(s):  
C Sayrin ◽  
I Dotsenko ◽  
S Gleyzes ◽  
M Brune ◽  
J M Raimond ◽  
...  
Keyword(s):  
Maximum Likelihood ◽  
Photon Number ◽  
Optimal Time ◽  
Cavity Field ◽  
Time Resolved ◽  
Number Distribution ◽  
Photon Number Distribution

scholarly journals Multimode thermal states with multiphoton subtraction: Study of the photon-number distribution in the selected subsystem

2020 ◽  
Vol 101 (1) ◽  
Author(s):  
K. G. Katamadze ◽  
G. V. Avosopiants ◽  
N. A. Bogdanova ◽  
Yu. I. Bogdanov ◽  
S. P. Kulik
Keyword(s):  
Photon Number ◽  
Number Distribution ◽  
Photon Number Distribution ◽  
Thermal States

scholarly journals su(2) AND su(1,1) DISPLACED NUMBER STATES AND THEIR NONCLASSICAL PROPERTIES

2000 ◽  
Vol 14 (30) ◽  
pp. 1099-1108 ◽  
Author(s):  
HONGCHEN FU ◽  
XIAOGUANG WANG ◽  
CHONG LI ◽  
JIANGONG WANG
Keyword(s):  
Radiation Field ◽  
Photon Number ◽  
Density Dependent ◽  
Nonclassical Properties ◽  
Number Distribution ◽  
Intermediate States ◽  
Quantized Radiation Field ◽  
Photon Number Distribution ◽  
Dependent Interaction

We study su(2) and su(1,1) displaced number states. These states are eigenstates of density-dependent interaction systems of quantized radiation field with classical current. These states are intermediate states interpolating between number and displaced number states. Their photon number distribution, statistical and squeezing properties are studied in detail. It shows that these states exhibit strong nonclassical properties.

On the Squeezing and Displacement of nth-Order

1997 ◽  
Vol 11 (09n10) ◽  
pp. 399-406
Author(s):  
Norton G. de Almeida ◽  
Célia M. A. Dantas
Keyword(s):  
Coherent State ◽  
Coherent States ◽  
Photon Number ◽  
Natural Generalization ◽  
Statistical Properties ◽  
Number Distribution ◽  
Quantum Statistical ◽  
Photon Number Distribution

The norder expressions for the squeezed and coherent states are derived as a natural generalization of the usual squeezed coherent and coherent states. The photon number distribution of n order of squeezed coherent states that are eigenstates of the operators [Formula: see text] is derived. The n order coherent state is a particular case of the states that we are now deriving. Some mathematical and quantum statistical properties of these states are discussed.

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