63 citations · 164 across the 7 of their papers we have counts for
7 papers
Coboson formalism for Cooper pairs used to derive Richardson's equations
Monique Combescot, Guojun Zhu
We propose a many-body formalism for Cooper pairs which has similarities to the one we recently developed for composite boson excitons (coboson in short). Its Shiva diagram represe…
Two-Cooper-pair problem and the Pauli exclusion principle
W. V. Pogosov, M. Combescot, M. Crouzeix
While the one-Cooper pair problem is now a textbook exercise, the energy of two pairs of electrons with opposite spins and zero total momentum has not been derived yet, the exact h…
"Moth-eaten effect" driven by Pauli blocking, revealed for Cooper pairs
W. V. Pogosov, M. Combescot
We extend the well-known Cooper's problem beyond one pair and study how this dilute limit is connected to the many-pair BCS condensate. We find that, all over from the dilute to th…
Analytical approach to semiconductor Bloch equations
M. Combescot, O. Betbeder-Matibet, M. N. Leuenberger
Although semiconductor Bloch equations have been widely used for decades to address ultrafast optical phenomena in semiconductors, they have a few important drawbacks: (i) Coulomb…
Density expansion of the energy of N close-to-boson excitons
O. Betbeder-Matibet, M. Combescot
Pauli exclusion between the carriers of excitons induces novel many-body effects, quite different from the ones generated by Coulomb interaction. Using our commutation techniqu…
Quantum wells, wires and dots with finite barrier: analytical expressions for the bound states
X. Leyronas, M. Combescot
From a careful study of the transcendental equations fulfilled by the bound state energies of a free particle in a quantum well, cylindrical wire or spherical dot with finite poten…