Conditional probabilities and collapse in quantum measurements

We show that including both the system and the apparatus in the quantum description of the measurement process, and using the concept of conditional probabilities, it is possible to deduce the statistical operator of the system after a measurement with a given result, which gives the probability dis...

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Detalles Bibliográficos
Autores principales:	Laura, R., Vanni, L.
Formato:	JOUR
Materias:	Conditional probabilities Consecutive measurements Projection postulate Quantum measurements
Acceso en línea:	http://hdl.handle.net/20.500.12110/paper_00207748_v47_n9_p2382_Laura
Aporte de:	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires

id	todo:paper_00207748_v47_n9_p2382_Laura
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spelling	todo:paper_00207748_v47_n9_p2382_Laura2023-10-03T14:20:24Z Conditional probabilities and collapse in quantum measurements Laura, R. Vanni, L. Conditional probabilities Consecutive measurements Projection postulate Quantum measurements We show that including both the system and the apparatus in the quantum description of the measurement process, and using the concept of conditional probabilities, it is possible to deduce the statistical operator of the system after a measurement with a given result, which gives the probability distribution for all possible consecutive measurements on the system. This statistical operator, representing the state of the system after the first measurement, is in general not the same that would be obtained using the postulate of collapse. © 2008 Springer Science+Business Media, LLC. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_00207748_v47_n9_p2382_Laura
institution	Universidad de Buenos Aires
institution_str	I-28
repository_str	R-134
collection	Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
topic	Conditional probabilities Consecutive measurements Projection postulate Quantum measurements
spellingShingle	Conditional probabilities Consecutive measurements Projection postulate Quantum measurements Laura, R. Vanni, L. Conditional probabilities and collapse in quantum measurements
topic_facet	Conditional probabilities Consecutive measurements Projection postulate Quantum measurements
description	We show that including both the system and the apparatus in the quantum description of the measurement process, and using the concept of conditional probabilities, it is possible to deduce the statistical operator of the system after a measurement with a given result, which gives the probability distribution for all possible consecutive measurements on the system. This statistical operator, representing the state of the system after the first measurement, is in general not the same that would be obtained using the postulate of collapse. © 2008 Springer Science+Business Media, LLC.
format	JOUR
author	Laura, R. Vanni, L.
author_facet	Laura, R. Vanni, L.
author_sort	Laura, R.
title	Conditional probabilities and collapse in quantum measurements
title_short	Conditional probabilities and collapse in quantum measurements
title_full	Conditional probabilities and collapse in quantum measurements
title_fullStr	Conditional probabilities and collapse in quantum measurements
title_full_unstemmed	Conditional probabilities and collapse in quantum measurements
title_sort	conditional probabilities and collapse in quantum measurements
url	http://hdl.handle.net/20.500.12110/paper_00207748_v47_n9_p2382_Laura
work_keys_str_mv	AT laurar conditionalprobabilitiesandcollapseinquantummeasurements AT vannil conditionalprobabilitiesandcollapseinquantummeasurements
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Conditional probabilities and collapse in quantum measurements

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