Selective and efficient quantum process tomography with single photons
We present the results of the first photonic implementation of a new method for quantum process tomography. The method {originally presented by A. Bendersky et al.} enables the estimation of any element of the χ-matrix that characterizes a quantum process using resources that scale polynomially with...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_00319007_v104_n12_p_Schmiegelow |
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todo:paper_00319007_v104_n12_p_Schmiegelow2023-10-03T14:42:06Z Selective and efficient quantum process tomography with single photons Schmiegelow, C.T. Larotonda, M.A. Paz, J.P. Heralded single photon sources matrix Matrix elements Process tomography Quantum channel Quantum process Quantum process tomography Single photons Estimation Photons Tomography Multiphoton processes We present the results of the first photonic implementation of a new method for quantum process tomography. The method {originally presented by A. Bendersky et al.} enables the estimation of any element of the χ-matrix that characterizes a quantum process using resources that scale polynomially with the number of qubits. It is based on the idea of mapping the estimation of any χ-matrix element onto the average fidelity of a quantum channel and estimating the latter by sampling randomly over a special set of states called a 2-design. With a heralded single photon source we fully implement such algorithm and perform process tomography on a number of channels affecting the polarization qubit. The method is compared with other existing ones, and its advantages are discussed. © 2010 The American Physical Society. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00319007_v104_n12_p_Schmiegelow |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Heralded single photon sources matrix Matrix elements Process tomography Quantum channel Quantum process Quantum process tomography Single photons Estimation Photons Tomography Multiphoton processes |
| spellingShingle |
Heralded single photon sources matrix Matrix elements Process tomography Quantum channel Quantum process Quantum process tomography Single photons Estimation Photons Tomography Multiphoton processes Schmiegelow, C.T. Larotonda, M.A. Paz, J.P. Selective and efficient quantum process tomography with single photons |
| topic_facet |
Heralded single photon sources matrix Matrix elements Process tomography Quantum channel Quantum process Quantum process tomography Single photons Estimation Photons Tomography Multiphoton processes |
| description |
We present the results of the first photonic implementation of a new method for quantum process tomography. The method {originally presented by A. Bendersky et al.} enables the estimation of any element of the χ-matrix that characterizes a quantum process using resources that scale polynomially with the number of qubits. It is based on the idea of mapping the estimation of any χ-matrix element onto the average fidelity of a quantum channel and estimating the latter by sampling randomly over a special set of states called a 2-design. With a heralded single photon source we fully implement such algorithm and perform process tomography on a number of channels affecting the polarization qubit. The method is compared with other existing ones, and its advantages are discussed. © 2010 The American Physical Society. |
| format |
JOUR |
| author |
Schmiegelow, C.T. Larotonda, M.A. Paz, J.P. |
| author_facet |
Schmiegelow, C.T. Larotonda, M.A. Paz, J.P. |
| author_sort |
Schmiegelow, C.T. |
| title |
Selective and efficient quantum process tomography with single photons |
| title_short |
Selective and efficient quantum process tomography with single photons |
| title_full |
Selective and efficient quantum process tomography with single photons |
| title_fullStr |
Selective and efficient quantum process tomography with single photons |
| title_full_unstemmed |
Selective and efficient quantum process tomography with single photons |
| title_sort |
selective and efficient quantum process tomography with single photons |
| url |
http://hdl.handle.net/20.500.12110/paper_00319007_v104_n12_p_Schmiegelow |
| work_keys_str_mv |
AT schmiegelowct selectiveandefficientquantumprocesstomographywithsinglephotons AT larotondama selectiveandefficientquantumprocesstomographywithsinglephotons AT pazjp selectiveandefficientquantumprocesstomographywithsinglephotons |
| _version_ |
1807316757941059584 |