Qualitative aspects of the entanglement in the three-level model with photonic crystals

Details Qualitative aspects of the entanglement in the three-level model with photonic crystals Qualitative aspects of the entanglement in the three-level model with photonic crystals

2005-06-27

arxiv.org/abs/quant-ph/0506226v1

Physics

Quantum Physics

28 pages, 10 figures: Accepted in Applied Physics B: Laser and Optics

Scientific paper

10.1007/s00340-005-1838-x

This communication is an enquiry into the circumstances under which concurrence and phase entropy methods can give an answer to the question of quantum entanglement in the composite state when the photonic band gap is exhibited by the presence of photonic crystals in a three-level system. An analytic approach is proposed for any three-level system in the presence of photonic band gap. Using this analytic solution, we conclusively calculate the concurrence and phase entropy, focusing particularly on the entanglement phenomena. Specifically, we use concurrence as a measure of entanglement for dipole emitters situated in the thin slab region between two semi-infinite one-dimensionally periodic photonic crystals, a situation reminiscent of planar cavity laser structures. One feature of the regime considered here is that closed-form evaluation of the time evolution may be carried out in the presence of the detuning and the photonic band gap, which provides insight into the difference in the nature of the concurrence function for atom-field coupling, mode frequency and different cavity parameters. We demonstrate how fluctuations in the phase and number entropies effected by the presence of the photonic-band-gap. The outcomes are illustrated with numerical simulations applied to GaAs. Finally, we relate the obtained results to instances of any three-level system for which the entanglement cost can be calculated. Potential experimental observations in solid-state systems are discussed and found to be promising.

Affiliated with

Also associated with

No associations

Rating

Qualitative aspects of the entanglement in the three-level model with photonic crystals does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Qualitative aspects of the entanglement in the three-level model with photonic crystals, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Qualitative aspects of the entanglement in the three-level model with photonic crystals will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-434700