Noise-assisted preparation of entangled atoms

2003/06/13 by X. X. Yi, C. S. Yu, Chang‐shui Yu +3 · 71 citations
Computer Science · Physics and Astronomy · #Atomic physics #Computer science #Function (biology) #Intensity (physics) #Noise (video) #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum entanglement #Quantum information processing #Quantum mechanics #Quantum noise #Resonance (particle physics) #Statistical physics #Stochastic resonance #Telecommunications #White noise #quant-ph #stochastic dynamics and bifurcation

paper · pdf · doi:10.1103/physreva.68.052304

published in Physical Review A 68(5) (American Physical Society) · 4 pages, 4 figures

arxiv created 2003/06/13 · openalex publication_date 2003/11/03 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

We discuss the generation of entangled states of two two-level atoms inside an optical cavity. The cavity mode is supposed to be coupled to a white noise with adjustable intensity. We describe how the entanglement between the atoms arise in such a situation. The entanglement is maximized for intermediate values of the noise intensity, while it is a monotonic function of the atomic decay rate. This resembles the phenomenon of stochastic resonance and sheds more light on the idea to exploit the white noise in quantum-information processing.

Citations

• Entanglement of Formation of an Arbitrary State of Two Qubits
• Manipulating quantum entanglement with atoms and photons in a cavity
• Quantum theory of optical feedback via homodyne detection
• Good Quantum Error-Correcting Codes Exist
• Cavity-loss-induced generation of entangled atoms
• Teleportation, entanglement and thermodynamics in the quantum world
• The role of relative entropy in quantum information theory
• Quantum computers and dissipation