Zeno and Anti Zeno effect for a two level system in a squeezed bath

Abstract

We discuss the appearance of Zeno (QZE) or anti-Zeno (QAE) effect in an exponentially decaying system. We consider the quantum dynamics of a continuously monitored two level system interacting with a squeezed bath. We find that the behavior of the system depends critically on the way in which the squeezed bath is prepared. For specific choices of the squeezing phase the system shows Zeno or anti-Zeno effect in conditions for which it would decay exponentially if no measurements were done. This result allows for a clear interpretation in terms of the equivalent spin system interacting with a fictitious magnetic field.

arXiv comment18 pages, 7 figures;added references for section 4;changes in the nomenclature

References in corpus (2)

• Observation of the Quantum Zeno and Anti-Zeno effects in an unstable system
• Quantum Zeno Effect for Exponentially Decaying Systems

Cited by in corpus (6)

• Zeno physics in ultrastrong circuit QED
• Decoherence-free subspace and disentanglement dynamics for two qubits in a common non-Markovian squeezed reservoir
• Total Quantum Zeno effect and Intelligent States for a two level system in a squeezed bath
• Polaron formation in a spin chain by measurement-induced imaginary Zeeman field
• Total Quantum Zeno Effect beyond Zeno Time
• Quantum Zeno effect in the multimode quantum Rabi model