Entanglement and nonlocality of a single relativistic particle Export

@article{citeulike:6047398, abstract = {Recent work has argued that the concepts of entanglement and nonlocality must be taken seriously even in systems consisting of only a single particle. These treatments, however, are nonrelativistic, and, if single-particle entanglement is fundamental, it should also persist in a relativistic description. Here, we consider a spin-1/2 particle in a superposition of two different velocities as viewed by an observer in a relativistically boosted inertial frame and show that the entanglement between the two velocity modes survives right up to the speed of light. We also discuss how quantum gates could be implemented in this way and apply our results to the case of a superconductor. In particular, we show that an s-wave superconductor would have p-wave components for a boosted observer.}, author = {Dunningham, Jacob and Palge, Veiko and Vedral, Vlatko}, citeulike-article-id = {6047398}, citeulike-linkout-0 = {http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=PLRAAN000080000004044302000001&idtype=cvips&gifs=yes}, citeulike-linkout-1 = {http://link.aps.org/abstract/PRA/v80/e044302}, citeulike-linkout-2 = {http://dx.doi.org/10.1103/PhysRevA.80.044302}, day = {15}, doi = {10.1103/PhysRevA.80.044302}, journal = {Physical Review A (Atomic, Molecular, and Optical Physics)}, keywords = {analytic, entanglement, model, nonlocality, particle, relativistic, single}, month = {October}, number = {4}, pages = {044302+}, posted-at = {2009-10-31 07:28:31}, priority = {2}, publisher = {APS}, title = {Entanglement and nonlocality of a single relativistic particle}, url = {http://dx.doi.org/10.1103/PhysRevA.80.044302}, volume = {80}, year = {2009} }

TY - JOUR ID - citeulike:6047398 L3 - citeulike-article-id:6047398 N2 - Recent work has argued that the concepts of entanglement and nonlocality must be taken seriously even in systems consisting of only a single particle. These treatments, however, are nonrelativistic, and, if single-particle entanglement is fundamental, it should also persist in a relativistic description. Here, we consider a spin-1/2 particle in a superposition of two different velocities as viewed by an observer in a relativistically boosted inertial frame and show that the entanglement between the two velocity modes survives right up to the speed of light. We also discuss how quantum gates could be implemented in this way and apply our results to the case of a superconductor. In particular, we show that an s-wave superconductor would have p-wave components for a boosted observer. IS - 4 JF - Physical Review A (Atomic, Molecular, and Optical Physics) TI - Entanglement and nonlocality of a single relativistic particle PB - APS VL - 80 SP - 044302 KW - analytic KW - entanglement KW - model KW - nonlocality KW - particle KW - relativistic KW - single AU - Dunningham, Jacob AU - Palge, Veiko AU - Vedral, Vlatko PY - 2009/10/15/ UR - http://dx.doi.org/10.1103/PhysRevA.80.044302 ER -