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Department News and Colloquium

Physics & Astronomy Colloquium at CSU Long Beach

Low Energy Electrodynamics of Strongly

Disordered Superconductors

Götz Seibold

Brandenburg University of Technology, Cottbus-Senftenberg, Germany

Monday, April 25, 2016
11:15am in PH2-126

In the last decades the failure of the BCS paradigm of superconductivity in several correlated materials led to a profound modification of the description of the superconducting phenomenon itself. A case in point is the occurrence of Cooper pairing and phase coherence at distinct temperatures in strongly disordered superconductors. In this seminar I will discuss the electromagnetic properties of such systems based on studies of the attractive Hubbard model with strong on-site disorder and by including fluctuations beyond the Bogoljubov-de Gennes approach. It turns out that current correlations, responsible for the Meissner effect, have a long-range tail due to the formation of percolative current paths while at finite frequencies phase modes acquire a dipole moment and appear as a subgap spectral feature in the optical conductivity.

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 126 (PH2-126). 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!


For information and suggestions about the colloquium please contact the colloquium coordinator:
Prof. Andreas Bill, Phone: 562-985-8616, Email:

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 2015-2016

Date Title Speaker and Affiliation
August 31 Meet & Mix CSULB Faculty and Staff Faculty and Staff
September 14 Light Nuclei, the Universe, and Everything Kenneth Nollett, Department of Physics, San Diego State University
September 21 Looking for unconventional quantum states in layered materials & heterostructures Claudia Ojeda-Aristizabal, CSULB
September 28 Magnetoresistance Measurements on SmB6 – Cornering the Parameter Space of an Illusive Correlated Topological Insulator Cagliyan Kurdak, University of Michigan
October 5 The Role of Physics in Medicine: Examples from X-Ray Computed Tomography M. McNitt-Gray, UCLA Radiology
October 12 Searching for the dark universe with matter wave interferometry P. Hamilton, UCLA
October 19 From Physics to Data Science D. Benveniste, EMC Corporation
October 26 Heating up Quantum Mechanics S. Parameswaran, UC Irvine
October 29-31 Annual Meeting of the APS Far West Section Conference Webpage
November 2
The Unpredictable, the Predetermined, and the Postdetermined Unfold Together
R.G. James, UC Davis
November 9 Quadratic Magneto Optical Kerr Effect and Chirality of Magnetization Reversal in Py/SmFe/Py Exchange Springs Jiyeong Gu, CSULB
November 16 Magnetic Force Microscopy of Magnets with Competing Interactions Yeong-Ah Soh
November 30
Confining Energetic Ions in Magnetic Fusion Experiments
William Heidbrink
Dept. of Physics & Astronomy,
UC Irvine
December 2 Student Presentations I CSULB students
December 7 Student Presentations II CSULB students
December 9 Student Presentations III CSULB students
January 25 Time Fluctuations in Quantum Systems Out-of-Equilibrium Lorenzo Campos Venuti, USC
February 1 Functionalizing Graphene for Spintronics and Quantum Information Applications: Density Functional Studies Ruqian Wu, UCI
February 8 Anyonics: Designing Exotic Circuitry with Non-Abelian Anyons Kirill Shtengel, UCR
February 15    
February 22 On the Dynamics of Planets, Stars and Black Holes – New Insights from Triples Smadar Naoz, UCLA
February 24 Investigating Complexity One Atom at a Time Eric Hudson, Penn State University
March 7 The Search for Supersymmetry at the LHC: News from the Front Lines Owen Long, UC Riverside
March 14 ... .., USC
March 21 Dark Sunshine Flip Tanedo, UC Irvine

Colloquia Schedule