Effect of Spin Dimensionality in the Fidelity of Spin Chain Quantum Communication
We consider an unmodulated linear spin chain composed of two qubits at the ends, which undergo nearest-neighbor interactions, with an arbitrary spin between them. The state of the qubit on one end is to be transmitted through the arbitrary spin and is received by the qubit on the other end with some...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
University of the Philippines
2017-06-01
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| Series: | Science Diliman |
| Subjects: | |
| Online Access: | http://www.journals.upd.edu.ph/index.php/sciencediliman/article/view/5624 |
| _version_ | 1818359622626443264 |
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| author | Art Graeson B. Dumigpe Eric A. Galapon |
| author_facet | Art Graeson B. Dumigpe Eric A. Galapon |
| author_sort | Art Graeson B. Dumigpe |
| collection | DOAJ |
| description | We consider an unmodulated linear spin chain composed of two qubits at the ends, which undergo nearest-neighbor interactions, with an arbitrary spin between them. The state of the qubit on one end is to be transmitted through the arbitrary spin and is received by the qubit on the other end with some fidelity. We look at the behavior of the average f idelity of state transfer through time as affected by the spin quantum number of the arbitrary spin in between the qubits. We f ind that the higher the spin quantum number becomes, the earlier it takes to achieve perfect or nearly perfect state transfer. Moreover, when the channel with arbitrary spin is subjected to environment interaction, results from the calculation of average fidelity suggest that increasing the spin quantum number of the channel provides a countermeasure to the effects of decoherence induced by the environment. |
| first_indexed | 2024-12-13T20:47:50Z |
| format | Article |
| id | doaj.art-6996b29d64ee43d2aa0c044a1607d195 |
| institution | Directory Open Access Journal |
| issn | 0115-7809 2012-0818 |
| language | English |
| last_indexed | 2024-12-13T20:47:50Z |
| publishDate | 2017-06-01 |
| publisher | University of the Philippines |
| record_format | Article |
| series | Science Diliman |
| spelling | doaj.art-6996b29d64ee43d2aa0c044a1607d1952022-12-21T23:31:56ZengUniversity of the PhilippinesScience Diliman0115-78092012-08182017-06-012915365Effect of Spin Dimensionality in the Fidelity of Spin Chain Quantum CommunicationArt Graeson B. DumigpeEric A. GalaponWe consider an unmodulated linear spin chain composed of two qubits at the ends, which undergo nearest-neighbor interactions, with an arbitrary spin between them. The state of the qubit on one end is to be transmitted through the arbitrary spin and is received by the qubit on the other end with some fidelity. We look at the behavior of the average f idelity of state transfer through time as affected by the spin quantum number of the arbitrary spin in between the qubits. We f ind that the higher the spin quantum number becomes, the earlier it takes to achieve perfect or nearly perfect state transfer. Moreover, when the channel with arbitrary spin is subjected to environment interaction, results from the calculation of average fidelity suggest that increasing the spin quantum number of the channel provides a countermeasure to the effects of decoherence induced by the environment.http://www.journals.upd.edu.ph/index.php/sciencediliman/article/view/5624Quantum communicationsspin chainf idelityopen quantum system |
| spellingShingle | Art Graeson B. Dumigpe Eric A. Galapon Effect of Spin Dimensionality in the Fidelity of Spin Chain Quantum Communication Science Diliman Quantum communications spin chain f idelity open quantum system |
| title | Effect of Spin Dimensionality in the Fidelity of Spin Chain Quantum Communication |
| title_full | Effect of Spin Dimensionality in the Fidelity of Spin Chain Quantum Communication |
| title_fullStr | Effect of Spin Dimensionality in the Fidelity of Spin Chain Quantum Communication |
| title_full_unstemmed | Effect of Spin Dimensionality in the Fidelity of Spin Chain Quantum Communication |
| title_short | Effect of Spin Dimensionality in the Fidelity of Spin Chain Quantum Communication |
| title_sort | effect of spin dimensionality in the fidelity of spin chain quantum communication |
| topic | Quantum communications spin chain f idelity open quantum system |
| url | http://www.journals.upd.edu.ph/index.php/sciencediliman/article/view/5624 |
| work_keys_str_mv | AT artgraesonbdumigpe effectofspindimensionalityinthefidelityofspinchainquantumcommunication AT ericagalapon effectofspindimensionalityinthefidelityofspinchainquantumcommunication |