Quantum state reconstruction in the presence of dissipation

Abstract

We propose a realistic scheme to determine the quantum state of a single mode cavity field even after it has started to decay due to the coupling with an environment. Although dissipation destroys quantum coherences, we show that at zero temperature enough information about the initial state remains, in an observable quantity, to allow the reconstruction of its Wigner function.

Cited by in corpus (14)

• Recovering coherence from decoherence: a method of quantum state reconstruction
• Measuring quasiprobability distribution functions of the cavity field considering field and atomic decays
• Nonextensive approach to decoherence in quantum mechanics
• The von Neumann Entropy for Mixed States
• The Glauber-Sudarshan and Kirkwood-Rihaczec functions
• Vibrational Superposition States Without Rotating Wave Approximation
• Pulsed characteristic-function measurement of a thermalizing harmonic oscillator
• Relation between the autocorrelation and Wigner functions
• Direct measurement of the Q-function in a lossy cavity
• Von Neumann entropy in a dispersive cavity
• Exact solution of the ion-laser interaction in all regimes
• Intrinsic decoherence in the interaction of two fields with a two-level atom
• Cavity Field Reconstruction at Finite Temperature
• Scheme to measure squeezing and phase properties of a harmonic oscillator