Alexander Nersesyan

(staff associate)

ICTP, Condensed Matter Section
Room 247
Tel.: (+39).040.2240.279
e-mail: aners@ictp.trieste.it

Research interests:

Low-dimensional quantum systems

• Nature of elementary excitations and origin of incommensurabilities in 1D and quasi-1D frustrated antiferromagnets.
  (collaborators: F.H.L. Essler and A.M. Tsvelik (Brookhaven); M. Fabrizio and M. Zarea (SISSA) )
• Nonperturbative description of quantum critical points in 1D electron and spin systems (band insulator to Mott insulator transition in the ionic Hubbard model, quantum spin chains and ladders in staggered external fields). Generalized self-dual sine-Gordon models.
  (collaborators: M. Fabrizio (SISSA),  A. O Gogolin (Imperial College),  F.H.L. Essler (Brookhaven), P. Lecheminant (Cergy Pontoise), Y.-J. Wang  (Dresden) )
• Electron correlations in carbon nanotubes.
  (collaborators: A. O Gogolin (Imperial College), A.M. Tsvelik (Brookhaven)).