%0 Journal Article %1 EbDExperiment %A Krauter, Hanna %A Muschik, Christine A. %A Jensen, Kasper %A Wasilewski, Wojciech %A Petersen, Jonas M. %A Cirac, J. Ignacio %A Polzik, Eugene S. %D 2010 %K myown %T Entanglement generated by dissipation %U http://arxiv.org/abs/1006.4344 %X Entanglement is not only one of the most striking features of Quantum Mechanics but also an essential ingredient in most applications in the field of Quantum Information. Unfortunately, this property is very fragile. In experiments conducted so far, coupling of the system to a quantum mechanical environment, commonly referred to as dissipation, either inhibits entanglement or prevents its generation. In this Letter, we report on an experiment in which dissipation induces entanglement between two atomic objects rather than impairing it. This counter-intuitive effect is achieved by engineering the dissipation by means of laser- and magnetic fields, and leads to entanglement which is very robust and therefore long-lived. Our system consists of two distant macroscopic ensembles containing about 10^12 atoms coupled to the environment composed of the vacuum modes of the electromagnetic field. The two atomic objects are kept entangled by dissipation at room temperature for about 0.015s. The prospects of using this method to obtain extremely long-lived entanglement in a steady state are discussed.

@article{EbDExperiment, abstract = { Entanglement is not only one of the most striking features of Quantum Mechanics but also an essential ingredient in most applications in the field of Quantum Information. Unfortunately, this property is very fragile. In experiments conducted so far, coupling of the system to a quantum mechanical environment, commonly referred to as dissipation, either inhibits entanglement or prevents its generation. In this Letter, we report on an experiment in which dissipation induces entanglement between two atomic objects rather than impairing it. This counter-intuitive effect is achieved by engineering the dissipation by means of laser- and magnetic fields, and leads to entanglement which is very robust and therefore long-lived. Our system consists of two distant macroscopic ensembles containing about 10^{12} atoms coupled to the environment composed of the vacuum modes of the electromagnetic field. The two atomic objects are kept entangled by dissipation at room temperature for about 0.015s. The prospects of using this method to obtain extremely long-lived entanglement in a steady state are discussed. }, added-at = {2011-03-09T18:49:48.000+0100}, author = {Krauter, Hanna and Muschik, Christine A. and Jensen, Kasper and Wasilewski, Wojciech and Petersen, Jonas M. and Cirac, J. Ignacio and Polzik, Eugene S.}, biburl = {https://www.bibsonomy.org/bibtex/2281e0ad06f74f3eba062c7db821eb576/christine.m}, description = {Entanglement generated by dissipation}, interhash = {7e66cfb619f793c9688c02a19c087fe0}, intrahash = {281e0ad06f74f3eba062c7db821eb576}, keywords = {myown}, note = {cite arxiv:1006.4344 }, timestamp = {2011-03-09T18:49:48.000+0100}, title = {Entanglement generated by dissipation}, url = {http://arxiv.org/abs/1006.4344}, year = 2010 }