Work

Entanglement echoes in quantum computation

Year: 2004

Type: article

Abstract: We study the stability of entanglement in a quantum computer implementing an efficient quantum algorithm, which simulates a quantum chaotic dynamics. For this purpose, we perform a forward-backward evolution of an initial state in which two qubits are in a maximally entangled Bell state. If the dynamics is reversed after an evolution time ${t}_{r}$, there is an echo of the entanglement between these two qubits at time ${t}_{e}=2{t}_{r}$. Perturbations attenuate the pairwise entanglement echo and generate entanglement between these two qubits and the other qubits of the quantum computer.

Source: Physical Review A

DOI: 10.1103/physreva.69.052317

Authors: Davide Rossini, Giuliano Benenti, Giulio Casati

Institutions: University of Insubria, Istituto Nazionale per la Fisica della Materia, Istituto Nazionale di Fisica Nucleare, Sezione di Milano

Language: English

Topic: Quantum Computing Algorithms and Architecture

Subfield: Artificial Intelligence

Field: Computer Science

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W2001994767

FWCI: 1.696

Cites: 21

Cited by: 10

Related to: 10