Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

The variances in a single-mode squeezed vacuum state

A. S. Daoud

Published Jan 1, 2006• 0 citations
OpenAlex

Abstract

in this research paper, wc calculate the variances in single-mode pure and mixed-squeezed vacuum stales.Direct relationships between the variances and the mean number o f photons, present in the cc^crcnt stale of the mode, are obtained.ITie results assure that the squeezed States have less uncertainty in one quadrature than the coherent state.Some interesting properties of the squeezed stales arc followed as consequences of introducing the P-representation to describe the state of the mode.

Related papers

Statistical Properties Of Single-mode Displaced Squeezed Vacuum State

Alemayehu Getahun Kumela, Ruth Birhanu, Misrak Getahun

In this paper the displaced squeezed vacuum state is produced by application of displaced operator on squeezed vacuum state. With help of density operator we find Q function, with the Q function mean, variance and quadrature variance would be calculated. From this we can determine the system has superpoissonian statics, the squeezed parameter is direct proportion with both mean and variance of photon number, but inversely proportion with quadrature variance. The squeezing occurs in plus quadrature with the maximum squeezing of 99.7% for r=3.

International Journal on Orange Technologies•Dec 1, 2020•0 citations

Statistical Properties of Single-Mode Displaced Squeezed Vacuum State

Ruth Birhanu

In this paper the displaced squeezed vacuum state is produced by application of displaced operator on squeezed vacuum state. With help of density operator we find Q function, with the Q function mean, variance and quadrature variance would be calculated. From this we can determine the system has superpoissonian statics, the squeezed parameter is direct proportion with both mean and variance of photon number, but inversely proportion with quadrature variance. The squeezing occurs in plus quadrature with the maximum squeezing of 99.7% for r=3. Keywords: Quantum nature, displaced state, squeezed vacuum state DOI : 10.7176/APTA/81-02 Publication date: December 31 st 2019

Advances in physics theories and applications•Dec 1, 2019•0 citations

Quantum Natures of Single-Mode Displaced Squeezed Vacuum State

Alemayehu Getahun Kumela

The displaced squeezed vacuum state is produced by application of displaced operator on squeezed vacuum state. With help of density operator we find Q function, with the Q function mean, variance and quadrature variance would be calculated. From this we can determine the system has superpoissonian statics, the squeezed parameter is direct proportion with both mean and variance of photon number, but inversely proportion with quadrature variance. The squeezing occurs in plus quadrature with the maximum squeezing of 99.7% for r=3. Keywords: Quantum nature, displaced state, squeezed vacuum state DOI : 10.7176/APTA/82-01 Publication date: January 31 st 2020

Advances in physics theories and applications•Jan 1, 2020•0 citations

Average Number of Photons Present in a Single-mode Squeezed Vacuum State as Function of the Mean Free Path

A. S. Daoud

We devote this research paper to construct a relationship between the average of the total number of quanta in a single-mode squeezed vacuum state and the mean free path of atoms of a material through which the natural light passes This relationship provides a method to measure fxperimentally the mean number of photons present in this mode of the quantum radiation field.

•Jan 1, 2003•0 citations

Quantum properties of two-mode squeezed thermalized states

Alemayehu Getahun Kumela, Mohammed Kelif

We have studied the statistical and squeezing properties of the Two-mode squeezed thermal light. We have calculated the mean of the photon number sum and difference, the variance of the photon number sum and difference, second order correlation function, the quadrature variance and quadrature squeezing, employing the Q function. We have found that the mean of the photon number sum for the two-mode squeezed thermal light is the sum of the means of the photon number sum of the separate modes and the photon statistic is super Poissonian. And the photon number of a two-mode squeezed thermal light is correlated and we have seen that the two-mode squeezed thermal light exhibiting the photon bunching effect. Moreover, the quadrature variance of the two-mode squeezed thermal light turns out to be the product of the quadrature variances of the two-mode thermal and two-mode squeezed vacuum states. The squeezing increase with increasing the squeeze parameter and with decreasing the mean photon number of thermal light.

CENTRAL ASIAN JOURNAL OF MATHEMATICAL THEORY AND COMPUTER SCIENCES•Sep 4, 2020•0 citations

Quantum Properties of Two-mode Squeezed Thermalized States

Mohammed Kelif

We have studied the statistical and squeezing properties of the Two-mode squeezed thermal light. We have calculated the mean of the photon number sum and difference, the variance of the photon number sum and difference, second order correlation function, the quadrature variance and quadrature squeezing, employing the Q function. We have found that the mean of the photon number sum for the two-mode squeezed thermal light is the sum of the means of the photon number sum of the separate modes and the photon statistic is super Poissonian. And the photon number of a two-mode squeezed thermal light is correlated and we have seen that the two-mode squeezed thermal light exhibiting the photon bunching effect. Moreover, the quadrature variance of the two-mode squeezed thermal light turns out to be the product of the quadrature variances of the two-mode thermal and two-mode squeezed vacuum states. The squeezing increase with increasing the squeeze parameter and with decreasing the mean photon number of thermal light. DOI: 10.7176/JNSR/11-23-01 Publication date: December 31 st 2020

•Dec 1, 2020•0 citations
in this research paper, wc calculate the variances in single-mode pure and mixed-squeezed vacuum stales.Direct relationships between the variances and the mean number o f photons, present in the cc^crcnt stale of the mode, are obtained.ITie results assure that the squeezed States have less uncertainty in one quadrature than the coherent state.Some interesting properties of the squeezed stales arc followed as consequences of introducing the P-representation to describe the state of the mode.
In this paper the displaced squeezed vacuum state is produced by application of displaced operator on squeezed vacuum state. With help of density operator we find Q function, with the Q function mean, variance and quadrature variance would be calculated. From this we can determine the system has superpoissonian statics, the squeezed parameter is direct proportion with both mean and variance of photon number, but inversely proportion with quadrature variance. The squeezing occurs in plus quadrature with the maximum squeezing of 99.7% for r=3.
In this paper the displaced squeezed vacuum state is produced by application of displaced operator on squeezed vacuum state. With help of density operator we find Q function, with the Q function mean, variance and quadrature variance would be calculated. From this we can determine the system has superpoissonian statics, the squeezed parameter is direct proportion with both mean and variance of photon number, but inversely proportion with quadrature variance. The squeezing occurs in plus quadrature with the maximum squeezing of 99.7% for r=3. Keywords: Quantum nature, displaced state, squeezed vacuum state DOI : 10.7176/APTA/81-02 Publication date: December 31 st 2019
The displaced squeezed vacuum state is produced by application of displaced operator on squeezed vacuum state. With help of density operator we find Q function, with the Q function mean, variance and quadrature variance would be calculated. From this we can determine the system has superpoissonian statics, the squeezed parameter is direct proportion with both mean and variance of photon number, but inversely proportion with quadrature variance. The squeezing occurs in plus quadrature with the maximum squeezing of 99.7% for r=3. Keywords: Quantum nature, displaced state, squeezed vacuum state DOI : 10.7176/APTA/82-01 Publication date: January 31 st 2020
We have studied the statistical and squeezing properties of the Two-mode squeezed thermal light. We have calculated the mean of the photon number sum and difference, the variance of the photon number sum and difference, second order correlation function, the quadrature variance and quadrature squeezing, employing the Q function. We have found that the mean of the photon number sum for the two-mode squeezed thermal light is the sum of the means of the photon number sum of the separate modes and the photon statistic is super Poissonian. And the photon number of a two-mode squeezed thermal light is correlated and we have seen that the two-mode squeezed thermal light exhibiting the photon bunching effect. Moreover, the quadrature variance of the two-mode squeezed thermal light turns out to be the product of the quadrature variances of the two-mode thermal and two-mode squeezed vacuum states. The squeezing increase with increasing the squeeze parameter and with decreasing the mean photon number of thermal light.
We have studied the statistical and squeezing properties of the Two-mode squeezed thermal light. We have calculated the mean of the photon number sum and difference, the variance of the photon number sum and difference, second order correlation function, the quadrature variance and quadrature squeezing, employing the Q function. We have found that the mean of the photon number sum for the two-mode squeezed thermal light is the sum of the means of the photon number sum of the separate modes and the photon statistic is super Poissonian. And the photon number of a two-mode squeezed thermal light is correlated and we have seen that the two-mode squeezed thermal light exhibiting the photon bunching effect. Moreover, the quadrature variance of the two-mode squeezed thermal light turns out to be the product of the quadrature variances of the two-mode thermal and two-mode squeezed vacuum states. The squeezing increase with increasing the squeeze parameter and with decreasing the mean photon number of thermal light. DOI: 10.7176/JNSR/11-23-01 Publication date: December 31 st 2020