Quantum gate arrays can be programmed to evaluate the expectation value of any operator
A programmable gate array is a circuit whose action is controlled by input data. In this paper we describe a special-purpose quantum circuit that can be programmed to evaluate the expectation value of any operator O acting on a space of states of N dimensions. The circuit has a program register whos...
Guardado en:
| Autores principales: | , |
|---|---|
| Formato: | JOUR |
| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_10502947_v68_n5_p5_Paz |
| Aporte de: |
| id |
todo:paper_10502947_v68_n5_p5_Paz |
|---|---|
| record_format |
dspace |
| spelling |
todo:paper_10502947_v68_n5_p5_Paz2023-10-03T15:59:34Z Quantum gate arrays can be programmed to evaluate the expectation value of any operator Paz, J.P. Roncaglia, A. A programmable gate array is a circuit whose action is controlled by input data. In this paper we describe a special-purpose quantum circuit that can be programmed to evaluate the expectation value of any operator O acting on a space of states of N dimensions. The circuit has a program register whose state [Formula Presented] encodes the operator O whose expectation value is to be evaluated. The method requires knowledge of the expansion of O in a basis of the space of operators. We discuss some applications of this circuit and its relation to known instances of quantum state tomography. © 2003 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_10502947_v68_n5_p5_Paz |
| institution |
Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
| collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| description |
A programmable gate array is a circuit whose action is controlled by input data. In this paper we describe a special-purpose quantum circuit that can be programmed to evaluate the expectation value of any operator O acting on a space of states of N dimensions. The circuit has a program register whose state [Formula Presented] encodes the operator O whose expectation value is to be evaluated. The method requires knowledge of the expansion of O in a basis of the space of operators. We discuss some applications of this circuit and its relation to known instances of quantum state tomography. © 2003 The American Physical Society. |
| format |
JOUR |
| author |
Paz, J.P. Roncaglia, A. |
| spellingShingle |
Paz, J.P. Roncaglia, A. Quantum gate arrays can be programmed to evaluate the expectation value of any operator |
| author_facet |
Paz, J.P. Roncaglia, A. |
| author_sort |
Paz, J.P. |
| title |
Quantum gate arrays can be programmed to evaluate the expectation value of any operator |
| title_short |
Quantum gate arrays can be programmed to evaluate the expectation value of any operator |
| title_full |
Quantum gate arrays can be programmed to evaluate the expectation value of any operator |
| title_fullStr |
Quantum gate arrays can be programmed to evaluate the expectation value of any operator |
| title_full_unstemmed |
Quantum gate arrays can be programmed to evaluate the expectation value of any operator |
| title_sort |
quantum gate arrays can be programmed to evaluate the expectation value of any operator |
| url |
http://hdl.handle.net/20.500.12110/paper_10502947_v68_n5_p5_Paz |
| work_keys_str_mv |
AT pazjp quantumgatearrayscanbeprogrammedtoevaluatetheexpectationvalueofanyoperator AT roncagliaa quantumgatearrayscanbeprogrammedtoevaluatetheexpectationvalueofanyoperator |
| _version_ |
1807315410257707008 |