59 citations · 439 across the 21 of their papers we have counts for
6 papers · 2 filters
Petal-shape probability areas: complete quantum state discrimination
Luis Roa, Carla Hermann-Avigliano, Roberto Salazar +3
We find the allowed complex numbers associated with the inner product of N equally separated pure quantum states. The allowed areas on the unitary complex plane have the form of pe…
Full quantum reconstruction of vortex states
I. Rigas, L. L. Sanchez-Soto, A. B. Klimov +2
We propose a complete tomographic reconstruction of any vortex state carrying orbital angular momentum. The scheme determines the angular probability distribution of the state at d…
Discrete phase-space structure of -qubit mutually unbiased bases
A. B. Klimov, J. L. Romero, G. Bjork +1
We work out the phase-space structure for a system of qubits. We replace the field of real numbers that label the axes of the continuous phase space by the finite field $\Gal{2…
Optimal quantum state reconstruction for cold trapped ions
A. B. Klimov, A. Fernández, C. Muñoz +1
We study the physical implementation of an optimal tomographic reconstruction scheme for the case of determining the state of a multi-qubit system, where trapped ions are used for…
Photo-detection using Bose-condensed atoms in a micro trap
S. Wallentowitz, A. B. Klimov
A model of photo-detection using a Bose--Einstein condensate in an atom-chip based micro trap is analyzed. Atoms absorb photons from the incident light field, receive part of the p…
Quantum phase transitions in an effective Hamiltonian: fast and slow systems
Isabel Sainz, Andrei B. Klimov, Luis Roa
An effective Hamiltonian describing interaction between generic "fast" and a "slow" systems is obtained in the strong interaction limit. The result is applied for studying the effe…