Initial correlations effects on decoherence at zero temperature
arXiv:quant-ph/0409167 · doi:10.1088/0305-4470/38/47/010
Abstract
We consider a free charged particle interacting with an electromagnetic bath at zero temperature. The dipole approximation is used to treat the bath wavelengths larger than the width of the particle wave packet. The effect of these wavelengths is described then by a linear Hamiltonian whose form is analogous to phenomenological Hamiltonians previously adopted to describe the free particle-bath interaction. We study how the time dependence of decoherence evolution is related with initial particle-bath correlations. We show that decoherence is related to the time dependent dressing of the particle. Moreover because decoherence induced by the T=0 bath is very rapid, we make some considerations on the conditions under which interference may be experimentally observed.
16 pages, 1 figure
References in corpus (16)
- Decoherence, einselection, and the quantum origins of the classical
- Quantum Computers and Dissipation
- Maintaining coherence in Quantum Computers
- Decoherence of matter waves by thermal emission of radiation
- Matter-wave interferometer for large molecules
- Collisional decoherence observed in matter wave interferometry
- Entanglement of a Mesoscopic Field with an Atom induced by Photon Graininess in a Cavity
- Decoherence and Initial Correlations in Quantum Brownian Motion
- Adiabatic Decoherence
- Quantum measurement and decoherence
- Decoherence in quantum cosmology at the onset of inflation
- Short-Time Decoherence for General System-Environment Interactions
- Decoherence and recoherence from vacuum fluctuations near a conducting plate
- Effect of initial correlations on short-time decoherence
- Decoherence at zero temperature
- Decoherence and infrared divergence