Spin squeezing of atomic ensembles via nuclear-electronic spin entanglement
arXiv:0802.2876 · doi:10.1103/PhysRevLett.101.073601
Abstract
Entangled many body systems have recently attracted significant attention in various contexts. Among them, spin squeezed atoms and ions have raised interest in the field of precision measurements, as they allow to overcome quantum noise of uncorrelated particles. Precise quantum state engineering is also required as a resource for quantum computation, and spin squeezing can be used to create multi-partite entangled states. Two-mode spin squeezed systems have been used for elementary quantum communication protocols. Until now spin squeezing has been always achieved via generation of entanglement between different atoms of the ensemble. In this Letter, we demonstrate for the first time ensemble spin squeezing generated by engineering the quantum state of each individual atom. More specifically, we entangle the nuclear and electronic spins of Cesium atoms at room temperature. We verify entanglement and ensemble spin squeezing by performing quantum tomography on the atomic state.
5 pages, 3 figures
References in corpus (20)
- Long-distance quantum communication with atomic ensembles and linear optics
- Experimental long-lived entanglement of two macroscopic objects
- Many-particle entanglement with Bose--Einstein condensates
- Quantum teleportation between light and matter
- Experimental demonstration of quantum memory for light
- Entanglement and Extreme Spin Squeezing
- Quantum memory for squeezed light
- Functional Quantum Nodes for Entanglement Distribution over Scalable Quantum Networks
- 'Designer atoms' for quantum metrology
- Storage and Retrieval of a Squeezed Vacuum
- Entanglement of remote atomic qubits
- Interfacing Collective Atomic Excitations and Single Photons
- Quantum Control of the Hyperfine Spin of a Cs Atom Ensemble
- A Robust Atom-Photon Entanglement Source for Quantum Repeaters
- Biased tomography schemes: an objective approach
- Non-Destructive Probing of Rabi Oscillations on the Cesium Clock Transition near the Standard Quantum Limit
- Characterizing the spin state of an atomic ensemble using the magneto-optical resonance method
- Suppression of Spin Projection Noise in Broadband Atomic Magnetometry
- Magnetometry with entangled atomic samples
- How to Measure the Quantum State of Collective Atomic Spin Excitation
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- Quantum Memories. A Review based on the European Integrated Project "Qubit Applications (QAP)"
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- Achieving spin-squeezed states by quench dynamics in a quantum chain
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- Testing ER = EPR with Hydrogen
- Nuclear Spin Squeezing Based on Spin-Exchange Collisions
- Spin Squeezing, Macrorealism and the Heisenberg uncertainty principle
- Protecting spin squeezing from decoherence