95 citations · 1.3k across the 75 of their papers we have counts for
5 papers · 2 filters
Measurement driven quantum evolution
L. Roa, M. L. Ladron de Guevara, A. Delgado +1
We study the problem of mapping an unknown mixed quantum state onto a known pure state without the use of unitary transformations. This is achieved with the help of sequential meas…
Qubits entanglement dynamics modified by an effective atomic environment
I. Sainz, A. B. Klimov, Luis Roa
We study entanglement dynamics of a couple of two-level atoms resonantly interacting with a cavity mode and embedded in a dispersive atomic environment. We show that in the absence…
On the structure of the sets of mutually unbiased bases for N qubits
J. L. Romero, G. Bjork, A. B. Klimov +1
For a system of N qubits, spanning a Hilbert space of dimension d=2^N, it is known that there exists d+1 mutually unbiased bases. Different construction algorithms exist, and it is…
Quantum phase-space description of light polarization
A. B. Klimov, J. Delgado, L. L. Sanchez-Soto
We present a method to characterize the polarization state of a light field in the continuous-variable regime. Instead of using the abstract formalism of SU(2) quasidistributions,…
Distance-based degrees of polarization for a quantum field
A. B. Klimov, L. L. Sanchez-Soto, E. C. Yustas +2
It is well established that unpolarized light is invariant with respect to any SU(2) polarization transformation. This requirement fully characterizes the set of density matrices r…