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[Fizinfo] Vajna Szabolcs eloadasa az ELTE-n jovo hetfon

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  • From: Andras Palyi <andraspalyi AT>
  • To: FIZINFO AT, nanofizika-szeminarium AT
  • Subject: [Fizinfo] Vajna Szabolcs eloadasa az ELTE-n jovo hetfon
  • Date: Fri, 14 Feb 2014 10:18:41 +0100

Az ELTE Nanofizika Szeminarium jovo hetfoi eloadasa:

Vajna Szabolcs (BME):
Disentangling dynamical phase transitions from equilibrium phase transitions

Idopont: 2014. februar 17., hetfo, 10:15
Helyszin: ELTE Eszaki Tomb, 5.128-as terem (1117 Budapest, Pazmany Peter
setany 1/A)

"Dynamical phase transitions (DPT) occur after quenching some global
parameters in quantum systems and are signalled by the non-analytical time
evolution of the dynamical free energy, which is calculated from the
Loschmidt overlap between the initial and time evolved states. In a recent
article (M. Heyl et al., Phys. Rev. Lett. 110, 135704 (2013)), it was
suggested that DPTs are closely related to equilibrium phase transitions
(EPT) for the transverse field Ising model.
After a general introduction to dynamical phase transitions I show that the
connection between the DPTs and EPTs is not general. I present examples where
DPT occurs without crossing any equilibrium critical lines by the quench, and
a nontrivial example with no DPT but crossing a critical line by the quench."

Minden erdeklodot szivesen latunk.

A szeminarium tovabbi programja:

Palyi Andras

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