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Mathematical Physics Seminar

Matthew P.A. Fisher - Monitoring Quantum Entanglement

Matthew P.A. Fisher

Location:  zoom
Date & time: Wednesday, 28 October 2020 at 10:45AM - 11:45AM

Matthew P.A. Fisher – UC Santa Barbara 

Wednesday, October 28, 10:45AM


"Monitoring Quantum Entanglement"

The inexorable growth of non-local quantum entanglement is the key feature that distinguishes quantum from classical systems. Monitoring an open system (by making projective measurements) can compete against entanglement growth, leading to a many-body quantum Zeno effect. A hybrid quantum circuit model consisting of both unitary gates and projective measurements exhibits a quantum dynamical phase transition between a weak measurement phase and a quantum Zeno phase. Detailed properties of the weak measurement phase - including relations to quantum error correcting codes - and of the critical properties of this novel quantum entanglement transition will be described. 

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