Physics – Quantum Physics
Scientific paper
2001-09-12
Phys. Rev. A 65, 040101(Rapid Comm) (2002)
Physics
Quantum Physics
13pages, 3 figures
Scientific paper
10.1103/PhysRevA.65.040101
A thermal field, which frequently appears in problems of decoherence, provides us with minimal information about the field. We study the interaction of the thermal field and a quantum system composed of two qubits and find that such a chaotic field with minimal information can nevertheless entangle the qubits which are prepared initially in a separable state. This simple model of a quantum register interacting with a noisy environment allows us to understand how memory of the environment affects the state of a quantum register.
Ahn Doyeol
Kim Min-Soo
Knight Peter L.
Lee Julian
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