نوع مقاله : مقاله پژوهشی

نویسندگان

1 Wolkite University

2 Adama Science and Technology University

چکیده

In this paper we have studied the squeezing and entanglement properties of
the cavity light generated by a three-level laser. In this quantum optical system, N
three-level atoms available in an open cavity, coupled to a two-mode vacuum reservoir, are pumped to the top level by means of electron bombardment at constant
rate.
Applying the solutions of the equations of
evolution for the expectation values of the atomic operators and the quantum Langevin
equations for the cavity mode operators, we have calculated the mean,
variance of the photon number, the quadrature squeezing, entanglement amplification as well as the normalized second-order correlation
function for the cavity
light. In addition, we have shown that the presence
of the spontaneous emission process leads to a decrease in the mean and variance
of the photon number.

کلیدواژه‌ها

موضوعات

عنوان مقاله [English]

Entanglement Amplification by Three-Level Laser Coupled to Vacuum reservoir

نویسندگان [English]

  • Menisha Alemu 1
  • Fekadu Maremi 2
  • Birke Alemu 2

1 Wolkite University

2 Adama Science and Technology University

چکیده [English]

In this paper we have studied the squeezing and entanglement properties of
the cavity light generated by a three-level laser. In this quantum optical system, N
three-level atoms available in an open cavity, coupled to a two-mode vacuum reservoir, are pumped to the top level by means of electron bombardment at constant
rate.
Applying the solutions of the equations of
evolution for the expectation values of the atomic operators and the quantum Langevin
equations for the cavity mode operators, we have calculated the mean,
variance of the photon number, the quadrature squeezing, entanglement amplification as well as the normalized second-order correlation
function for the cavity
light. In addition, we have shown that the presence
of the spontaneous emission process leads to a decrease in the mean and variance
of the photon number.

کلیدواژه‌ها [English]

  • Master Equation
  • Quadrature squeezing
  • Spontaneous emission
  • second-order correlations
  • photon entanglement

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