Quantum Coherence and Information Seminar Schedule

Quantum Coherence and Information

Seminar Schedule This series of talks bearing on issues in quantum measurement theory, foundation and interpretation of quantum mechanics, quantum decoherence and quantum-classical correspondence, quantum information and computation, is designed to assist graduate students beginning to do research in this newly developing interdisciplinary field. Its nature will vary from reports of original research to review of recent papers of significance. It is hoped that theoretical discussions of issues and models will draw on current experiments in AMO (atom-field interaction, cavity ions) condensed matter (SQUID, Dots), molecular/nuclear (NMR) and nonlinear sciences (quantum chaos) related to the physics of quantum computer prototypes

NOTICE: Starting this semester the newly inaugurated Maryland Joint Institute for Quantum Physics will hold a seminar series on Monday afternoons (futher notice pending), with invited speakers from research groups worldwide. As a consequence of this happy event, the QCI and AMO seminars have decided to merge their contents and use the same time slot and meeting place i.e., for the Fall semester, Tuesdays 2:30-4pm in Room 1201 of the Toll Physics Bldg.
related links:
AMO seminar series
QUIC seminar series

Spring 2005
Please refer to the following link for the current JQI seminar activities:
http://www.physics.umd.edu/JQI/Seminars/Spring2006/Seminars_S06.htm


*Date, Time, Place*	*Speaker, Affiliation, Title*

Tuesday, Oct. 11, 2005 2:30pm, PHYS 1201	Andrew Skinner, University of Maryland Dissipative Dynamics of Entanglement and Coherence in a Chain Boson Model Abstract: I develop a Born-Markov master equation for a chain of coupled spin-boson models. Each subsystem is treated as an effectively unbiased two-level system, or qubit, dissipating independently into an ohmic bath of oscillators. For a few qubits, I show how the low-temperature bath causes the chain to dissipate and decohere at selection-ruled rates that thermalize the chain. The independent dissipation of each qubit can induce entanglement and, in resonant transitions, can cause coherence to flow, along with the populations, into a less decoherent subspace.
Tuesday, Oct. 18, 2005 2:30pm, PHYS 1201	Carl J. Williams, NIST Gaithersburg What does the Bose Hubbard Model say about Quantum Computation? Abstract: This talk will provide an overview of recent work done on initialization of a neutral atom quantum register. We will review what has been learned about the nature of the many-body state in a 1-dimensional optical lattice, the Mott-Insulator phase transition, the effects of an external trap, and other characteristics. A brief description of what our understanding of the many-body state says about recent experimental results on damping in a displaced trapped 1-d system will be followed by a number of the outstanding questions that remain to be answered with regard to neutral atom quantum computing. In concluding I will attempt to further generalize the issues raised about neutral atom quantum computing to other proposed systems and how some of these issues tie closely to quantum architectures.
Tuesday, Nov. 1, 2005 2:30pm, PHYS 1201	Steve Adler, IAS Princeton University TBA
Tuesday, Nov. 8, 2005 4:00pm, Physics Lecture Hall	Suggestion to attend Physics Colloquium: David Cory,MIT TBA
POSTPONED - NEW DATE TBA 2:30pm, PHYS 1201	Anzi Hu, University of Maryland TBA

Archive of past seminars
QCI homepage