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Quantum Entanglement in Coupled Lossy Waveguides Using SU(2) and SU(1, 1) Thermo-Algebras
School of Physics, University of Hyderabad, Hyderabad, India
Department of Physics, BITS-Pilani, Hyderabad Campus, Hyderabad, India
School of Physics, University of Hyderabad, Hyderabad, India
- 1 School of Physics, University of Hyderabad, Hyderabad, India
- 2 Department of Physics, BITS-Pilani, Hyderabad Campus, Hyderabad, India
- 3 School of Physics, University of Hyderabad, Hyderabad, India
Journal of Modern Physics·Volume 06 (2015)·Pages 1554–1571·Published 10 September 2015·DOI10.4236/jmp.2015.611158
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Abstract
In this paper, the master equation for the coupled lossy waveguides is solved using the thermofield dynamics (TFD) formalism. This formalism allows the use of the underlying symmetry algebras SU(2) and SU(1, 1), associated with the Hamiltonian of the coupled lossy waveguides, to compute entanglement and decoherence as a function of time for various input states such as NOON states and thermal states.
KeywordsCoupled WaveguidesThermofield DynamicsMaster EquationLie AlgebrasEntanglementDecoherence
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