The quantum Zeno and anti-Zeno effects: from weak to strong system-environment coupling
arXiv:1811.11520 · doi:10.1140/epjd/e2019-90681-3
Abstract
By repeatedly measuring a quantum system, the evolution of the system can be slowed down (the quantum Zeno effect) or sped up (quantum anti-Zeno effect). We study these effects for a single two-level system coupled to a collection of harmonic oscillators. Previously, such systems have been studied in both the weak and the strong system-environment coupling regimes. In this paper, we apply a polaron transformation in a manner that allows us to study the quantum Zeno and anti-Zeno effects for a large variety of system-environment parameters. Using this approach, we reproduce previous results for the weak and strong system-environment coupling regimes. Moreover, as long as the environment is super-Ohmic, we show how our approach can be used to explore regimes such as the moderate system-environment coupling regime that could not be investigated before in a straightforward manner.
9 pages, comments most welcome
References in corpus (13)
- Protecting entanglement via the quantum Zeno effect
- Quantum Zeno dynamics: mathematical and physical aspects
- Quantum dot Rabi rotations beyond the weak exciton-phonon coupling regime
- Quantum Zeno and Anti-Zeno Effect without Rotating Wave Approximation
- Deterministic generation of large cluster states using non-deterministic collective measurements based on quantum Zeno effect
- Quantum anti-Zeno effect without rotating wave approximation
- Zeno and anti-Zeno effects for quantum Brownian motion
- Non-Canonical Statistics of a Spin-Boson Model: Theory and Exact Monte-Carlo Simulations
- Anti-Zeno Effect for Quantum Transport in Disordered Systems
- Amplification and suppression of system-bath correlation effects in an open many-body system
- Operator Quantum Zeno Effect: Protecting Quantum Information with Noisy Two-Qubit Interactions
- Quantum Zeno and anti-Zeno effects in open quantum systems
- Quantum Brownian motion under generalized position measurements: A converse Zeno scenario