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Open Quantum Systems Decoherence
Quantum Simulation
Quantum Phase Transition in a Pseudo-hermitian Dicke model
arXiv
Authors: Tetsuo Deguchi, Pijush K. Ghosh
Year
2009
Paper ID
9291
Status
Preprint
Abstract Read
~2 min
Abstract Words
60
Citations
N/A
Abstract
We show that a Dicke-type pseudo-hermitian Hamiltonian undergoes quantum phase transition by mapping it to the "Dressed Dicke Model" through a similarity transformation. We find the positive-definite metric in the Hilbert space of the pseudo-hermitian Hamiltonian so that it is unitary and allows a consistent quantum description. Further, we obtain the limit in which the pseudo-hermitian Hamiltonian is exactly solvable.
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- This paper contributes to the Quantum Simulation research area in the Quantum Articles archive.
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- We show that a Dicke-type pseudo-hermitian Hamiltonian undergoes quantum phase transition by mapping it to the "Dressed Dicke Model" through a similarity transformation.
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