Crossover from conserving to lossy transport in circular random-matrix ensembles.

Crossover from conserving to lossy transport in circular random-matrix ensembles.

In a quantum dot with three leads, the transmission matrix t12 between two of these leads is a truncation of a unitary scattering matrix S, which we treat as random. As the number of channels in the third lead is increased, the constraints from the symmetry of S become less stringent and t12 becomes...

Cur síos iomlán

Sonraí bibleagrafaíochta
Príomhchruthaitheoirí: Simon, S, Moustakas, A
Formáid: Journal article
Teanga:English
Foilsithe / Cruthaithe: 2006
Cur síos
Achoimre:In a quantum dot with three leads, the transmission matrix t12 between two of these leads is a truncation of a unitary scattering matrix S, which we treat as random. As the number of channels in the third lead is increased, the constraints from the symmetry of S become less stringent and t12 becomes closer to a matrix of complex Gaussian random numbers with no constraints. We consider the distribution of the singular values of t12, which is related to a number of physical quantities.

Míreanna comhchosúla