Exact-diagonalization study of exciton condensation in electron bilayers

Detecting Bose-Einstein condensation of exciton-polaritons via electron transport

Yueh-Nan Chen,1,* Neill Lambert,2 and Franco Nori2,3 1Department of Physics and National Center for Theoretical Sciences, National Cheng-Kung University, Tainan 701, Taiwan 2Advanced Science Institute, The Institute of Physical and Chemical Research (RIKEN), Saitama 351-0198, Japan 3Physics Department and Center for Theoretical Physics, The University of Michigan, Ann Arbor, Michigan 48109-1040...

Comment on ‘‘Lagrange-multiplier method in correlated-electron systems: Exact diagonalization study’’

An exact-diagonalization study of rare events in disordered conductors

We determine the statistical properties of wave functions in disordered quantum systems by exact diagonalization of one-, twoand quasi-one dimensional tight-binding Hamiltonians. In the quasi-one dimensional case we find that the tails of the distribution of wave-function amplitudes are described by the non-linear σ-model. In two dimensions, the tails of the distribution function are consistent...

Spin dynamics in a double quantum dot: Exact diagonalization study

Exact-diagonalization study of the one-dimensional disordered XXZ model.

We investigate the one-dimensional quantum XXZ model in the presence of diagonal disorder. Recently the model has been analyzed with the help of field-theoretical renormalization group methods, and a phase diagram has been predicted. We study the model with exact diagonalization techniques up to chain lengths of 16 sites. Using finite-size scaling methods we estimate critical exponents and the ...