Information transfer using a single particle path-spin hybrid entangled state |
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Authors: | T Pramanik Dipankar Home |
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Institution: | a S. N. Bose National Centre for Basic Sciences, Salt Lake, Kolkata 700 098, India b CAPSS, Department of Physics, Bose Institute, Sector-V, Salt Lake, Kolkata 700 091, India |
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Abstract: | The path-spin entangled state of a single spin-1/2 particle is considered which is generated by using a beam-spitter and a spin-flipper. Using this hybrid entanglement at the level of a single particle as a resource, we formulate a protocol for transferring of the state of an unknown qubit to a distant location. Our scheme is implemented by a sequence of unitary operations along with suitable spin-measurements, as well as by using classical communication between the two spatially separated parties. This protocol, thus, demonstrates the possibility of using intraparticle entanglement as a physical resource for performing information theoretic tasks. |
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Keywords: | Path-spin entangled state Information transfer |
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