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Showing 2009 · quant-phShow all
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quant-ph2009★ 32 cited
Entanglement temperature in molecular magnets composed of S-spin dimers
D. O. Soares-Pinto, A. M. Souza, R. S. Sarthour +5
In the present work, we investigate the quantum thermal entanglement in molecular magnets composed of dimers of spin , using an Entanglement Witness built from measurements of m…
quant-ph2009★ 3 cited
Low-Noise Amplification of a Continuous Variable Quantum State
R. C. Pooser, A. M. Marino, V. Boyer +2
We present an experimental realization of a low-noise, phase-insensitive optical amplifier using a four-wave mixing interaction in hot Rb vapor. Performance near the quantum limit…
quant-ph2009★ 51 cited
Entanglement and Bell's inequality violation above room temperature in metal carboxylates
A. M. Souza, D. O. Soares-Pinto, R. S. Sarthour +4
In the present work we show that a special family of materials, the metal carboxylates, may have entangled states up to very high temperatures. From magnetic susceptibility measure…