Prof Dieter Jaksch: Publications

Many-particle entanglement in two-component Bose-Einstein condensates

Physical Review A Atomic Molecular and Optical Physics 67:1 (2003) 013607/11

Authors:

A Micheli, D Jaksch, JI Cirac, P Zoller

Abstract:

The schemes which allow the creation of macroscopically entangled states with a distance 0c which were in excellent agreement with the numerical results were obtained. It was shown that the fidelity of these states can be improved significantly by one-axis presqueezing.

Quantum Information Processing with Quantuim Optics

Annales Henri Poincare 4:SUPPL. 2 (2003) S759-S781

Authors:

JI Cirac, LM Duan, D Jaksch, P Zoller

Abstract:

We review theoretical proposals for implementation of quantum computing and quantum communication with quantum optical methods.

Controlling dynamical phases in quantum optics

J OPT B-QUANTUM S O 4:4 (2002) S430-S436

Authors:

T Calarco, D Jaksch, JI Cirac, P Zoller

Abstract:

We review and compare several schemes for inducing precisely controlled quantum phases in quantum optical systems, We focus in particular on conditional dynamical phases, i.e. phases obtained via state- and time-dependent interactions between trapped two-level atoms and ions, We describe different possibilities for the kind of interaction to be exploited, including cold controlled collisions, electrostatic forces, and dipole-dipole interactions.

Creation of a molecular condensate by dynamically melting a Mott-insulator

Physical Review Letters 89 (2002) 040402, 4pp

Authors:

DH Jaksch, V. Venturi, J.I. Cirac, P. Zoller

Dynamically turning off interactions in a two-component condensate

Physical Review A Atomic Molecular and Optical Physics 65:3 B (2002) 033625/7

Authors:

D Jaksch, JI Cirac, P Zoller

Abstract:

A method to change the interaction strength of a two-component condensate by π/2 pulses is introduced. It is shown that applying a specific series of pulses to the condensate leads to an effective time-averaged Hamiltonian, which is of the form of the original two-component Hamiltonian with an interaction strength depending on parameters of the external field. In addition, it is shown that it is possible to store a spin-squeezed state of a condensate for an arbitrarily long time.

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