arXiv subjects

Fermín Aceves de la Cruz

Publications and source records attributed to Fermín Aceves de la Cruz.

2 recordsLinked to original sources

arXiv2015

Superradiance Transition in Graphene

We study theoretically and numerically the conditions required for the appearance of a superradiance transition in graphene. The electron properties of graphene are described in the single $p_z$-orbital tight-binding approximation, in which the model is reduced to the effective two-level pseudo-spin $1/2$ system. For each level we introduce the electron transfer rate of escape into a continuum. We demonstrate that, under some conditions, the superradiance experiences the maximal quantum coherent escape to the continuum.

quant-ph↗

arXiv2015

Non-Hermitian Quantum Annealing and Superradiance

We consider the non-Hermitian quantum annealing for the one-dimentional Ising spin chain, and for a large number of qubits. We show that the annealing time is significanly reduced for the non-Hermitian algorithm in comparison with the Hermitian one. We also demonstrtate the relation of the non-Hermitian quantum annealing with the superadiance transition in this system.

quant-ph↗