Strong-field molecular alignment for quantum logic and quantum control

The presence of three coupled lower energy states in the active region allowing the emission of two optical phonons fromthe lower laser level increases the ratio between the upper

Among quantum Langevin equations describing the unitary time evolution of a quantum system in contact with a quantum bath, we completely characterize those equations which are

In the study of open quantum systems modeled by a unitary evolution of a bipartite Hilbert space, we address the question of which parts of the environment can be said to have

The standard model of partile physis is a quantum eld theory of gauge elds and.. matter in

Considering that the electromagnetic field is a special case of the gravitational field [10], the structure of which has the character of a standing gravitational wave for

Another notable difficulty with this problem is that the mean field limit in clas- sical mechanics is obtained by proving the weak convergence of the N -particle empirical measure

We deduced in [14] that sequences of approximate minimizers for (1.5) converge in the macroscopic limit to a ground state of the Pekar functional, thus showing that our model at

We prove the existence of the positronium, the bound state of an electron and a positron, represented by a critical point of the energy functional in the absence of external field..