A simple quantum gate with atom chips

Abstract

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.

7 pages, 7 figures. One missing reference added in v2. To appear in European Physical Journal D

References in corpus (9)

• Atom Chips
• Coherence in Microchip Traps
• Quantum gates with neutral atoms: Controlling collisional interactions in time dependent traps
• Loading a Bose-Einstein Condensate onto an Optical Lattice: an Application of Optimal Control Theory to The Non Linear Schrödinger Equation
• Observation of anomalous spin-state segregation in a trapped ultra-cold vapor
• Applications of Integrated Magnetic Microtraps
• Towards single-atom detection on a chip
• Trapping and manipulating neutral atoms with electrostatic fields
• Quantum computing with spatially delocalized qubits

Cited by in corpus (11)

• Matter-wave interferometry in a double well on an atom chip
• Adiabatic radio frequency potentials for the coherent manipulation of matter waves
• Quantum computing implementations with neutral particles
• Quantum phase gate and controlled entanglement with polar molecules
• Quasi-condensate growth on an atom chip
• Theoretical analysis of the implementation of a quantum phase gate with neutral atoms on atom chips
• Prospects for fast Rydberg gates on an atom chip
• Time-Optimal Control of Collisional $\sqrt{\text{SWAP}}$ Gates in Ultracold Atomic Systems
• Compound atom-ion Josephson junction: Effects of finite temperature and ion motion
• Evanescent-wave Johnson Noise in small devices
• Single- and two-qubit quantum gates using superimposed optical lattice potentials