Events Calendar

Probing "inside" quantum collapse with solid-state qubits”

Speaker: Alexander N. Korotkov, University of California, Riverside

Talk Title: Probing "inside" quantum collapse with solid-state qubits”

Abstract: We discuss what is "inside" the quantum state collapse due to measurement, and what happens if the collapse is stopped half-way. For particular setups with solid-state qubits the answer is rather simple: the qubit state changes in accordance with gradually acquired information, without loss of its purity (no decoherence). The simple theory of such measurement leads to a number of experimentally testable predictions. So far three such experiments have been realized with superconducting qubits: partial collapse, uncollapse (measurement reversal), and
persistent Rabi oscillations. These effects can be potentially useful, for example for quantum feedback and decoherence suppression.

Biography: Alexander N. Korotkov received his Ph.D. in Physics in 1991 from Moscow State University (adviser: Konstantin K. Likharev). After that he worked at Moscow State University and the State University of New York at Stony Brook, he also held visiting
positions at Université de la Méditerranée (Marseille, France), and at NEC Fundamental Research Lab (Tsukuba, Japan). In 2000 Alexander Korotkov joined the faculty of the University of California, Riverside, where he is a Professor of Electrical
Engineering since 2006. Research interests of Alexander Korotkov include quantum computing, quantum measurements, quantum feedback control, and nanoelectronics. He has authored 105 journal papers and 37 proceedings/book chapters, which have
over 3,000 citations (h-index of 31).

Host: Todd Brun, x0-3503

Location: Seaver Science Library (SSL) - 150

Audiences: Everyone Is Invited

Contact: Gerrielyn Ramos