https://doi.org/10.1140/epjd/e2005-00175-8
A simple quantum gate with atom chips
1
Dipartimento di Fisica, Università di Trento, and CRS
INFM-BEC, 38050 Povo, Italy
2
ECT*, Strada delle Tabarelle
286, 38050 Villazzano, Italy
3
Institut für Physik,
Universität Potsdam, Am Neuen Palais 10, 14469 Potsdam,
Germany
4
Physikalisches Institut, Universität Heidelberg,
Philosophenweg 12, 69120 Heidelberg, Germany
Corresponding author: a Joerg.Schmiedmayer@physik.uni-heidelberg.de
Received:
29
March
2005
Revised:
23
May
2005
Published online:
28
June
2005
We present a simple scheme for implementing an atomic phase gate using two degrees of freedom for each atom and discuss its realization with cold rubidium atoms on atom chips. We investigate the performance of this collisional phase gate and show that gate operations with high fidelity can be realized in magnetic traps that are currently available on atom chips.
PACS: 03.67.Lx – Quantum computation / 34.90.+q – Other topics in atomic and molecular collision processes and interactions / 52.55.-s – Magnetic confinement and equilibrium
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2005
