Monday, October 27, 2014
(Refreshments served at 10:45am in HSCI-224)
Fig: Figure: Each of the six individual atoms seen here is at a temperature of about 1/1000th of a degree above absolut zero, forming the core of a special type of quantum computer called a quantum simulator.
A lattice of strongly-interacting quantum spins may be simulated effectively on a classical supercomputer so long as the number of spins N is smaller than about 20-50 (depending upon the interaction model). Past this point, the Hilbert space accessible to the system (which grows exponentially with N) requires too much memory to simulate, and we seek new methods to examine the crossover from the few-body to many-body regimes. A quantum simulator is a device that is in principle capable of simulating these systems in this regime because it has access to its own exponentially-large Hilbert space. I will describe work using a quantum simulator made from trapped atomic ions to simulate strongly-coupled quantum systems, and describe new methods for performing spectroscopy on the many-body system. I will also discuss progress toward implementing other quantum simulations with a collection of cold dipolar molecules.
See the colloquium schedule and its archive of previous talks
Colloquia are scheduled to start Mondays at 11:15am sharp in Peterson Hall 2, Room 110 (PH2-110, map). Refreshments are served from 10:45am to 11:05am in Room HSCI-224 (next to the department office) and everyone is invited to mingle with faculty and students!
We acknowledge with gratitude donations and support from the following present sponsors:
We also acknowledge with gratitude our past donors: The Forty-Niner Shops, Inc., The Northrop Grumman Foundation, Sandra Dana, Anonymous.
If you wish to support the Colloquium, please contact the colloquium coordinator or the department chair. Thank you!
|Date||Title||Speaker and Affiliation|
|June 2||Development of Micro-Devices for Intra-Cellular Recordings in Awake Active Brains||M. Barbic, HHMI|
|September 8||Physics Deparment Meet & Mix||Faculty and
|September 15||Density Functional Theory: A great physics success story||Kieron Burke, UC Irvine|
|September 22||BME/Medical Physics; Assisted management of cardiopulmonary diseases||Christopher Druzgalski, CSULB|
|September 29||Radiationless Decay Studied by Time- Dependent Density Functional Theory||Enrico Tapavicza, CSULB|
|October 6||Electronic correlations in multi-orbital systems and iron based superconductors||Elena Bascones: ICMM, CSIC|
|October 13||Searches for Particle Dark Matter||Tim Tait, UCI|
|October 20||Theoretical Approaches towards HIV Vaccine Designs and Prevention Efforts||Ha Youn Lee, USC|
|October 27||Simulation and spectroscopy of many-body systems with cold atoms and molecules||Wes Campbell, UCLA|
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