Jörg Schmiedmayer | Tu Wien (original) (raw)
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Papers by Jörg Schmiedmayer
A Green's function formalism to analyze the scattering properties in confined geometries is d... more A Green's function formalism to analyze the scattering properties in confined geometries is developed. This includes scattering from a central field inside the guide created e.g. by impurities. For atomic collisions our approach applies to the case of parabolic confinement and, with certain restrictions, also to an anharmonic one. The coupling between the angular momentum phase shifts deltal\delta_ldeltal of a
Current Topics in Atomic, Molecular and Optical Physics - Invited Lectures of TC-2005, 2006
We present a realistic proposal for the storage and processing of quantum information with cold 8... more We present a realistic proposal for the storage and processing of quantum information with cold 87Rb atoms on atom chips. The qubit states are stored in hyperfine atomic levels with long coherence time, and two-qubit quantum phase gates are realized using the motional states of the atoms. Two-photon Raman transitions are used to transfer the qubit information from the internal to the external degree of freedom. The quantum phase gate is realized in a double-well potential created by slowly varying dc currents in the atom chip wires. Using realistic values for all experimental parameters (currents, magnetic fields, ...) we obtain high gate fidelities (above 99.9%) in short operation times (~ 10 ms).
SPIE Proceedings, 1997
Atomic beam propagation effects: index of refraction and longitudinal tomography. [Proceedings of... more Atomic beam propagation effects: index of refraction and longitudinal tomography. [Proceedings of SPIE 2995, 289 (1997)]. David A. Kokorowski, Troy D. Hammond, Edward T. Smith, Richard A. Rubenstein, Al-Amin Dhirani, Joerg Schmiedmayer, David E. Pritchard. Abstract. ...
Reviews of Modern Physics, 2009
Physical Review Letters, 1995
Physical Review Letters, 1991
Physical Review Letters, 2002
Applied Physics B Laser and Optics, 1995
Physical Review Letters, 1997
The whole business of quantum computing with neutral atoms requires accurate preparation and cont... more The whole business of quantum computing with neutral atoms requires accurate preparation and control of their quantum states. The envisioned procedure of preparing and operating an atom chip quantum processor involves two main tools at all its stages: quasi-static electro-magnetic fields to provide taylored potentials for trapping and guiding atomic qubits and light optical elements for initialisation, gate operation and
A Green's function formalism to analyze the scattering properties in confined geometries is d... more A Green's function formalism to analyze the scattering properties in confined geometries is developed. This includes scattering from a central field inside the guide created e.g. by impurities. For atomic collisions our approach applies to the case of parabolic confinement and, with certain restrictions, also to an anharmonic one. The coupling between the angular momentum phase shifts deltal\delta_ldeltal of a
Current Topics in Atomic, Molecular and Optical Physics - Invited Lectures of TC-2005, 2006
We present a realistic proposal for the storage and processing of quantum information with cold 8... more We present a realistic proposal for the storage and processing of quantum information with cold 87Rb atoms on atom chips. The qubit states are stored in hyperfine atomic levels with long coherence time, and two-qubit quantum phase gates are realized using the motional states of the atoms. Two-photon Raman transitions are used to transfer the qubit information from the internal to the external degree of freedom. The quantum phase gate is realized in a double-well potential created by slowly varying dc currents in the atom chip wires. Using realistic values for all experimental parameters (currents, magnetic fields, ...) we obtain high gate fidelities (above 99.9%) in short operation times (~ 10 ms).
SPIE Proceedings, 1997
Atomic beam propagation effects: index of refraction and longitudinal tomography. [Proceedings of... more Atomic beam propagation effects: index of refraction and longitudinal tomography. [Proceedings of SPIE 2995, 289 (1997)]. David A. Kokorowski, Troy D. Hammond, Edward T. Smith, Richard A. Rubenstein, Al-Amin Dhirani, Joerg Schmiedmayer, David E. Pritchard. Abstract. ...
Reviews of Modern Physics, 2009
Physical Review Letters, 1995
Physical Review Letters, 1991
Physical Review Letters, 2002
Applied Physics B Laser and Optics, 1995
Physical Review Letters, 1997
The whole business of quantum computing with neutral atoms requires accurate preparation and cont... more The whole business of quantum computing with neutral atoms requires accurate preparation and control of their quantum states. The envisioned procedure of preparing and operating an atom chip quantum processor involves two main tools at all its stages: quasi-static electro-magnetic fields to provide taylored potentials for trapping and guiding atomic qubits and light optical elements for initialisation, gate operation and