Group Seminar at MPQ: Random matrix models for decoherence and fidelity decay in quantum information systems

Alessia Stefano. University of Salento, Lecce
PhD Applicant Seminar MPQ lecture hall and zoom
Thursday, October 20th , 09:00 am (MEZ)

Abstract:

One of the main issues in the realization of quantum information devices is due to decoherence. The effects of the environment over a system of qubits can be represented exploiting the Random Matrix Theory. This theory was introduced in the 50s by Wigner, but lately its relation to Quantum Chaotic systems has been proposed. The central aim of this work is to compute fidelity and purity decay and analyze their relation with the generic properties of the environment.