Quantum phase gate and controlled entanglement with polar molecules

We propose an alternative scenario for the generation of entanglement between rotational quantum states of two polar molecules. This entanglement arises from dipole-dipole interaction, and is controlled by a sequence of laser pulses simultaneously exciting both molecules. We study the efficiency of...

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Bibliographic Details
Published in:Physical review. A, Atomic, molecular, and optical physics Atomic, molecular, and optical physics, 2007-03, Vol.75 (3), Article 033414
Main Authors: Charron, Eric, Milman, Pérola, Keller, Arne, Atabek, Osman
Format: Article
Language:English
Subjects:
ATOMIC AND MOLECULAR PHYSICS
COOLING
DETECTION
DIPOLES
EFFICIENCY
INTERACTIONS
MATRIX MATERIALS
MOLECULES
OPTICAL MODELS
OPTICS
PHOTON-MOLECULE COLLISIONS
Physics
PULSES
QUANTUM ENTANGLEMENT
Quantum Physics
ROTATIONAL STATES
SOLIDS
TRAPPING
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Summary:We propose an alternative scenario for the generation of entanglement between rotational quantum states of two polar molecules. This entanglement arises from dipole-dipole interaction, and is controlled by a sequence of laser pulses simultaneously exciting both molecules. We study the efficiency of the process, and discuss possible experimental implementations with cold molecules trapped in optical lattices or in solid matrices. Finally, various entanglement detection procedures are presented, and their suitability for these two physical situations is analyzed.
ISSN:1050-2947
1094-1622
DOI:10.1103/PhysRevA.75.033414