Cavity-loss-induced generation of entangled atoms

1998/11/30 by M. B. Plenio, Martin B. Plenio, Susana F. Huelga +4 · 14 citations
Computer Science · Physics and Astronomy · #Mechanical and Optical Resonators #Quantum Information and Cryptography #Quantum Mechanics and Applications #quant-ph

paper · pdf · doi:10.1103/physreva.59.2468

published as Phys.Rev. A59 (1999) 2468-2475 · Replaced with the published version which contains, at the end of Section V, a demonstration that the scheme can be extended to perfect entangled state preparation at arbitrarily low detector efficiencies. All other conclusions remain unchanged

openalex publication_date 1999/03/01 · arxiv created 2005/10/11 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/04

Abstract

We discuss the generation of entangled states of two two-level atoms inside an optical resonator. When the cavity decay is continuously monitored, the absence of photon counts is associated with the presence of an atomic entangled state. In addition to being conceptually simple, this scheme can be demonstrated with presently available technology. We describe how such a state is generated through conditional dynamics, using quantum jump methods, including both cavity damping and spontaneous emission decay, and evaluate the fidelity and relative entropy of entanglement of the generated state compared with the target entangled state.

Citations

• Experimental realization of a quantum algorithm
• Can Quantum-Mechanical Description of Physical Reality Be Considered Complete?
• Measurement of Conditional Phase Shifts for Quantum Logic
• Entanglement of Formation of an Arbitrary State of Two Qubits
• On the Problem of Hidden Variables in Quantum Mechanics
• Die gegenw�rtige Situation in der Quantenmechanik
• Quantifying Entanglement

Cited by

• Engineering an interaction and entanglement between distant atoms
• Scalable cavity-QED-based scheme of generating entanglement of atoms and of cavity fields
• Quantum gate forQswitching in monolithic photonic-band-gap cavities containing two-level atoms
• Probabilistic Generation of Entanglement in Optical Cavities
• Quantum estimation of a damping constant
• Robust high-fidelity teleportation of an atomic state through the detection of cavity decay
• High-fidelity measurement and quantum feedback control in circuit QED
• Entanglement, teleportation, and single-photon storage with two-level atoms inside an optical parametric oscillator
• Generation and propagation of entanglement in driven coupled-qubit systems
• Robust entanglement in atomic systems viaΛ-type processes
• Resonant scattering can enhance the degree of entanglement
• Measurement-induced entanglement of two superconducting qubits
• Information transfer through a one-atom micromaser
• Adiabatic entanglement in two-atom cavity QED