University of Birmingham > Talks@bham > Theoretical Physics Seminars > Quantum noise and self-sustained radiation of PT-symmetric optical systems

Quantum noise and self-sustained radiation of PT-symmetric optical systems

Add to your list(s) Download to your calendar using vCal

  • UserProf. Henning Schomerus, U of Lancaster
  • ClockThursday 20 October 2011, 13:45-15:00
  • HouseTheory Library.

If you have a question about this talk, please contact Dr Dimitri M Gangardt.

The observation that PT-symmetric Hamiltonians can have real-valued energy levels even if they are non-Hermitian has triggered intense activities, with experiments, in particular, focusing on optical systems, where Hermiticity can be broken by absorption and amplification. For classical waves, absorption and amplification are related by time-reversal symmetry. I discuss how microreversibility-breaking quantum noise turns PT-symmetric systems into self-sustained sources of radiation, which distinguishes them from ordinary, Hermitian quantum systems [1].

[1] HS, Phys. Rev. Lett. 104, 233601 (2010).

This talk is part of the Theoretical Physics Seminars series.

Tell a friend about this talk:

This talk is included in these lists:

Note that ex-directory lists are not shown.

 

Talks@bham, University of Birmingham. Contact Us | Help and Documentation | Privacy and Publicity.
talks@bham is based on talks.cam from the University of Cambridge.