Abstract
Squeezing and phase space coherence are investigated for a bimodal cavity accommodating a two-level atom. The two modes of the cavity are initially in the Barut–Girardello coherent states. This system is studied with the SU(1,1)-algebraic model. Quantum effects are analyzed with the Husimi function under the effect of the intrinsic decoherence. Squeezing, quantum mixedness, and the phase information, which are affected by the system parameters, exalt a richer structure dynamic in the presence of the intrinsic decoherence.
Highlights
Quantum coherence and correlations are the main resources for more quantum applications [1,2], such as teleportation, cryptography [3,4,5] and quantum memory [6,7]
Quantum coherence arises from superposition and is a prerequisite for many types of quantum entanglement [8], such as discord, nonlocality and steering [9]. von Neumann entropy [10] and linear entropy [11] are utilized to estimate the amount of entanglement generated by a pure quantum state [1] and a mixed state [12]
These two measures are based on Husimi distribution function (HF) [13]
Summary
Quantum coherence and correlations are the main resources for more quantum applications [1,2], such as teleportation, cryptography [3,4,5] and quantum memory [6,7]. We analyze the dynamics of quantum coherence (based on the quasi-probability Husimi distribution), and the quantum squeezing when the two-mode parametric amplifier cavity fields start with a Barut–Girardello coherent state.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
