ELFT HÍRADÓ

[Janos Asboth <janos.asboth AT gmail.com>]

                    MEGHÍVÓ

    Wigner FK SZFI Kvantumoptika és Kvantuminformatika Csoport szeminárium
ára


Benjamin Rousseaux ,
Laboratoire Interdisciplinaire Carnot de Bourgogne,
Universite de Bourgogne


''Quantum control at the nanoscale - Arbitrary qudit gates by adiabatic
passage''


Az előadás helye és ideje:
Wigner FK SZFI
Konkoly-Thege M. út 29-33., 1-es épület
123-as szoba
2013. december 12. csütörtök, 13:30.

Minden érdeklődőt szeretettel várunk.
Asbóth János

p.s.

Abstract
========
We derive an adiabatic technique that implements the most general SU(d)
transformation in a quantum system of d degenerate states, featuring a
qudit. This technique is based on the factorization of the SU(d)
transformation into d generalized quantum Householder reflections, each of
which is implemented by a two-shot stimulated Raman adiabatic passage with
appropriate static phases. The energy of the lasers needed to synthesize a
single Householder reflection is shown to be remarkably constant as a
function ofd. This technique is directly applicable to a linear trapped ion
system with d +1 ions. We implement the quantum Fourier transform
numerically in a qudit with d = 4 (defined as a quartit) as an example.

Journal Ref:
Phys. Rev. A 87, 032328 (2013)