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Department News and Colloquium

Physics & Astronomy Colloquium at CSU Long Beach

Colloquium

Simulation and spectroscopy of many-body systems with cold atoms and molecules

Wes Campbell
Department of Physics & Astronomy, UCLA

Monday, October 27, 2014
11:15am, HSCI-103
(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!

Coordinator:

For information and suggestions about the colloquium please contact the colloquium coordinator:
Prof. Prashanth Jaikumar, Phone: 562-985-5592, Email: pjaikuma@csulb.edu

Directions to Campus

  • Access to Campus
  • Campus Maps
  • Parking on campus: contact the coordinator of the colloquium. If not reachable, call the department office (562) 985-7925. If none of these are available at the time you need information, call (562) 985-4146 or go to the drive-through information booth at the main campus entrance (on Beach Drive, near the crossing to Bellflower).
  • Walk (or ask for a ride on an on-campus shuttle) to the department office: Hall of Sciences, Room 220 (HSCI-220). The coordinator will provide the necessary informations.
  • Any question or problem: call the colloquium coordinator or the department office (562) 985-7925.

Colloquia Sponsors:

We acknowledge with gratitude donations and support from the following present sponsors:

  • H.E. and H.B. Miller
  • Benjamin Carter
  • The American Physical Society
  • Anonymous

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!

Academic Year 2014-2015

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
Students
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
November 3
November 10
November 17
November 24
December 1
December 8
December 10

Colloquia Schedule

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