Two-Band Model for Coherent Excitonic Condensates

Transitions in coherent oscillations between two trapped Bose-Einstein condensates

S. Raghavan, A. Smerzi, and V. M. Kenkre Rochester Theory Center for Optical Science and Engineering, Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627 Istituto Nazionale di Fisica della Materia and International School for Advanced Studies, via Beirut 2/4, I-34014 Trieste, Italy Center for Advanced Studies and Department of Physics and Astronomy, Universit...

Quantum Coherent Atomic Tunneling between Two Trapped Bose-einstein Condensates

We study the coherent atomic tunneling between two zero-temperature BoseEinstein condensates (BEC) confined in a double-well magnetic trap. Two Gross-Pitaevskii equations for the self-interacting BEC amplitudes, coupled by a transfer matrix element, describe the dynamics in terms of the inter-well phase-difference and population imbalance. In addition to the anharmonic generalization of the fam...

Coherent excitonic effects in quantum wells

Collective transport properties of bilayer-quantum-Hall excitonic condensates

Double-layer electron systems in the quantum Hall regime have excitonic condensate ground states when the layers are close together and the total Landau level filling factor is close to an odd integer. In this paper we discuss the microscopic physics of these states and recent progress toward building a theory of the anomalous collective transport effects that occur in separately contacted bila...

Unconventional pairing in excitonic condensates under spin-orbit coupling.

It is shown that Rashba and Dresselhaus spin-orbit couplings enhance the conclusive power in the experiments on the excitonic condensate by at least three low temperature effects. First, spin-orbit coupling facilitates the photoluminescence measurements via enhancing the bright contribution in the otherwise dominantly dark ground state. The second is the presence of a low temperature power law ...