Universal dynamical control of local decoherence for multipartite and multilevel systems

2006/06/16 by Goren Gordon, Gershon Kurizki, Abraham G. Kofman · 18 citations
Computer Science · Mathematics · Physics and Astronomy · #Computer science #Coupling (piping) #Fidelity #Field (mathematics) #Mathematics #Multipartite #Phase (matter) #Physics #Quantum #Quantum Information and Cryptography #Quantum Mechanics and Applications #Quantum decoherence #Quantum entanglement #Quantum mechanics #Qubit #Spectroscopy and Quantum Chemical Studies #Statistical physics #Telecommunications #quant-ph

paper · pdf · doi:10.1016/j.optcom.2006.01.062

published in Optics Communications 264(2), 398-406 (Elsevier BV) · 22 pages, 6 figures

openalex publication_date 2006/06/16 · arxiv created 2006/08/23 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05

Abstract

A unified theory is given of dynamically modified decay and decoherence of field-driven multilevel multipartite entangled states that are weakly coupled to zero-temperature baths or undergo random phase fluctuations. The theory allows for arbitrary local differences in their coupling to the environment. Due to such differences, the optimal driving-field modulation to ensure maximal fidelity is found to substantially differ from conventional ``Bang-Bang'' or π-phase flips of the single-qubit evolution.

Citations

• Dynamical suppression of decoherence in two-state quantum systems
• Quantum phase transition from a superfluid to a Mott insulator in a gas of ultracold atoms
• Inhibition of Decoherence due to Decay in a Continuum
• Experimental Demonstration of Entanglement-Enhanced Classical Communication over a Quantum Channel with Correlated Noise
• Frequent observations accelerate decay: The anti-Zeno effect
• Dynamics of the dissipative two-state system
• Spatial quantum noise interferometry in expanding ultracold atom clouds