TY  - JOUR
A1  - Müller, Matthias M.
A1  - Haakh, Harald R.
A1  - Calarco, Tommaso
A1  - Koch, Christiane P.
A1  - Henkel, Carsten
T1  - Prospects for fast Rydberg gates on an atom chip
JF  - Quantum information processing
N2  - Atom chips are a promising candidate for a scalable architecture for quantum information processing provided a universal set of gates can be implemented with high fidelity. The difficult part in achieving universality is the entangling two-qubit gate. We consider a Rydberg phase gate for two atoms trapped on a chip and employ optimal control theory to find the shortest gate that still yields a reasonable gate error. Our parameters correspond to a situation where the Rydberg blockade regime is not yet reached. We discuss the role of spontaneous emission and the effect of noise from the chip surface on the atoms in the Rydberg state.
KW  - Optimal control
KW  - Phase gate
KW  - Rydberg atoms
KW  - Cavity quantum electrodynamics
Y1  - 2011
U6  - https://doi.org/10.1007/s11128-011-0296-0
SN  - 1570-0755
VL  - 10
IS  - 6
SP  - 771
EP  - 792
PB  - Springer
CY  - New York
ER  -