International Journal of Optics and Photonics
IJOP
Basic Sciences
http://ijop.ir
1
admin
1735-8590
2538-4007
10.29252/ijop
1735-8590
en
jalali
1397
10
1
gregorian
2019
1
1
13
1
online
1
fulltext
en
Characteristics of the Temporal Behavior of Entanglement between Photonic Binomial Distributions and a Two-Level Atom in a Damping Cavity
عمومى
General
پژوهشي
Research
<div style="text-align: justify;">In the present study, temporal behavior of entanglement between photonic <em>binomial</em> distributions and a two-level atom in a leaky cavity, in equilibrium with the environment at a temperature T, is studied. In this regard, the master equation is solved in the secular approximation for the density matrix, when the initial photonic distribution is binomial, while the atomic states obey the Boltzmann distribution. The atom-photon density matrix so calculated is then used to compute the negativity, as a measure of entanglement. The behavior of atom-photon entanglement is, consequently, determined as a function of time <em>and</em> temperature. To justify the behavior of atom-photon entanglement, moreover, we employ the total density matrix to compute and analyze the time evolution of the initial photonic binomial probability distribution. Our results, along with representative figures reveal that the atom-photon degree of entanglement exhibits oscillations while decaying with time and asymptotically vanishes. It is further demonstrated that an increase in the temperature gives rise to a decrease in the entanglement. The finer characteristics of the temporal behavior of the corresponding probability distribution and, consequently, the atom-photon entanglement is also given and discussed.</div>
Atom-photon entanglement, Cavity damping, Master equation, Photonic binomial distribution.
43
52
http://ijop.ir/browse.php?a_code=A-10-112-2&slc_lang=en&sid=1
Fatemeh
Yadollahi
ftm.yadollahi@yahoo.com
`10031947532846002486`

10031947532846002486
No
Shiraz university
Rosa
Safaiee
safaiee@shirazu.ac.ir
`10031947532846002487`

10031947532846002487
No
Shiraz University
Mohammad Mehdi
Golshan
golshan@susc.ac.ir
`10031947532846002488`

10031947532846002488
Yes
Shiraz University