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Volume 26 - ICOP & ICPET 2020
ICOP & ICPET _ INPC _ ICOFS 2020, 26 - ICOP & ICPET 2020: 169-172 |
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Zare F, Bahadoryfar B, Moravej Z, Tavassoly M K. Coping with Decoherence in the Tavis-Cummings Model via Transition Frequency Modulation in the Presence of Dipole-Dipole Interaction and Multi-Photon Transitions. ICOP & ICPET _ INPC _ ICOFS 2020; 26 :169-172
URL: http://opsi.ir/article-1-2001-en.html
URL: http://opsi.ir/article-1-2001-en.html
1- Optics and Laser Group, Faculty of Physics, Yazd University
Abstract: (1899 Views)
In this paper, we investigate the interaction between two two-level atoms with a reservoir (dissipation source) via two qubits transition frequency modulation in the presence of dipole-dipole interaction and multi-photon transitions by using the Tavis-Cummings model. After introducing the model and the proper Hamiltonian, and using the time-dependent Schrödinger equation, we obtain the probability amplitudes of the state vector, by which we analyze the coherence effects via considering different parameters. We show that, dipole-dipole interaction in the presence of frequency modulation in a certain range of dipole-dipole interaction strength, reduces the amount of coherence and then by increasing the dipole-dipole interaction, the coherence property increases. Also for single-and two-photon transitions, comparing with four-photon case, decoherence can be observabel in longer times.
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