Quantum information transmission through a qubit chain with quasi-local dissipation
- Resource Type
- Authors
- Laleh Memarzadeh; Stefano Mancini; Roya Radgohar
- Source
- Quantum Information and Computation. 18:231-246
- Subject
- Physics
Quantum Physics
Nuclear and High Energy Physics
FOS: Physical sciences
General Physics and Astronomy
Statistical and Nonlinear Physics
Dissipation
Noise (electronics)
Action (physics)
Theoretical Computer Science
Computational Theory and Mathematics
Chain (algebraic topology)
Transmission (telecommunications)
Quantum mechanics
Qubit
Boundary value problem
Quantum information
Quantum Physics (quant-ph)
Mathematical Physics
- Language
- ISSN
- 1533-7146
We study quantum information transmission in a Heisenberg-XY chain where qubits are affected by quasi-local environment action and compare it with the case of local action of the environment. We find that for open boundary conditions the former situation always improves quantum state transfer process, especially for short chains. In contrast, for closed boundary conditions quasi-local environment results advantageous in the strong noise regime. When the noise strength is comparable with the XY interaction strength, the state transfer fidelity through chain of odd/even number of qubits in presence of quasi-local environment results smaller/greater than that in presence of local environment.