Computer Simulation in Condensed Matter Research Group. SIMCON

A lecture course on "BOSE-EINSTEIN COHERENCE IN SEMICONDUCTOR AND GRAPHENE" by Prof. Yurii E.Lozovik

A lecture course on "BOSE-EINSTEIN COHERENCE IN SEMICONDUCTOR AND GRAPHENE" by Prof. Yurii E.Lozovik Institute of Spectroscopy, Russian Academy of Sciences and Moscow Institute of Physics and Technology, Russia will take place at UPC, Campus Nord, edifici C4-002 on July 20,21,22 at 15:30

When

Jun 16, 2015 from 09:00 AM to 10:00 AM (Europe/Madrid / UTC200)

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A lecture course on


“BOSE-EINSTEIN COHERENCE  IN SEMICONDUCTORS AND GRAPHENE”*

by

Prof. Yurii E.Lozovik

Institute of Spectroscopy, Russian Academy of Sciences and Moscow Institute of Physics and Technology, Russia

will take place at
UPC, Campus Nord, edifici C4-002


on July 20,21,22 at 15:30

PROGRAM

1st lecture : July 20, 2009

“Possible phases, Bose condensation and superfluidity of excitons in nanostructures: theory, present experimental status and problems”

·         Matter versus exciton matter- similarities and dissimilarities.

·         Short history of Bose condensate

·         Physical realizations. Coupled quantum wells.

·         Phases and regimes for exciton system in coupled quantum wells.

·         BCS regime

·         Rare exciton system

·         BEC-BCS crossover

·         Strongly correlated phenomena and phases in CQW

·         Exciton crystal and supersolid

·         Exciton traps.

·         Definition of superfluidity in finite system

·         Local density approximation.

·         Coherent phenomena

·         Present experimental status of exciton BEC

2nd lecture: July 21, 2009

“Bose condensation and superfluidity of cavity polaritons”
  • Exciton -polaritons in optical microcavity – entanglement of cavity photons and 2D excitones
  • Bose-condensation and polariton laser
  • Gross-Pitaevskii-type system of equations for two-component entangled system

  • Landau method to calculate superfluid density ρ s - inapplicability to polaritons

  • Derivation of effective action of polariton system as system of two interacting Bose-field from linear response theory

  • Kosterlitz –Thouless transition of polariton system to superfluid state

  • Polariton traps  “Smoking gun proofs” of polariton BEC 

3rd lecture: July 22, 2009

“Physical properties, possible coherent phases and applications of graphene”

  • Moore law.

  • Allotrope forms of carbon

  • Discovery of graphene

  • Problem of existence of 2D membrane and 2Dcrystal

  • Orbitals and chemical bonds

  • Band structure and envelope function of graphene

  • Berry phase and absence of backscattering

  • Controlling by gate

  • Problems of quantum dot and transistor based on graphene

  • Optical properties of graphene

  • Pecularity of correlations in graphene

  • Coherent phases and collective properties

  • Peculiarities of coherent phase in graphene

  • Landau quantization and anomalous QHE in graphene

  • Magnetoexciton condensation

  • Possible applications. NEMS

 

(*) Seminari que s’ofereix mercès a l’ajut de mobilitat de professorat visitant atorgat pel Ministerio de Ciencia e Innovación als Programes de Doctorat amb Menció de Qualitat.