|
| related topics |
| {time, wave, function} |
| {time, decoherence, evolution} |
| {level, atom, field} |
| {measurement, state, measurements} |
| {photon, photons, single} |
| {error, code, errors} |
|
Quantum Trajectory method for the Quantum Zeno and anti-Zeno effects
J. Ruseckas, B. Kaulakys
abstract: We perform stochastic simulations of the quantum Zeno and anti-Zeno effects
for two level system and for the decaying one. Instead of simple projection
postulate approach, a more realistic model of a detector interacting with the
environment is used. The influence of the environment is taken into account
using the quantum trajectory method. The simulation of the measurement for a
single system exhibits the probabilistic behavior showing the collapse of the
wave-packet. When a large ensemble is analysed using the quantum trajectory
method, the results are the same as those produced using the density matrix
method. The results of numerical calculations are compared with the analytical
expressions for the decay rate of the measured system and a good agreement is
found. Since the analytical expressions depend on the duration of the
measurement only, the agreement with the numerical calculations shows that
otherparameters of the model are not important.
- oai_identifier:
- oai:arXiv.org:quant-ph/0605022
- categories:
- quant-ph
- comments:
- 12 figures, accepted for publication in Phys. Rev. A replaced with
single-spaced version
- doi:
- 10.1103/PhysRevA.73.052101
- arxiv_id:
- quant-ph/0605022
- journal_ref:
- Phys. Rev. A 73, 052101 (2006)
- created:
- 2006-05-02
- updated:
- 2006-05-05
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