دورية أكاديمية
Memory cost of quantum protocols
| العنوان: | Memory cost of quantum protocols |
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| المؤلفون: | BISIO, ALESSANDRO, D'ARIANO, GIACOMO, PERINOTTI, PAOLO, Sedlak M. |
| المساهمون: | Bisio, Alessandro, D'Ariano, Giacomo, Perinotti, Paolo, Sedlak, M. |
| سنة النشر: | 2012 |
| المجموعة: | IRIS UNIPV (Università degli studi di Pavia) |
| مصطلحات موضوعية: | Quantum Computing, Quantum Information, Quantum Algorithm, Quantum protocols |
| الوصف: | We consider the problem of minimizing the ancillary systems required to realize an arbitrary strategy of a quantum protocol, with the assistance of classical memory. For this purpose we introduce the notion of memory cost of a strategy to measure the resources required in terms of ancillary dimension. We provide a condition for the cost to be equal to a given value, and we use this result to evaluate the cost in some special cases. As an example, we show that any covariant protocol for the cloning of a unitary transformation requires at most one ancillary qubit. We also prove that the memory cost has to be determined globally and cannot be calculated by optimizing the resources independently at each step of the strategy. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| العلاقة: | info:eu-repo/semantics/altIdentifier/wos/WOS:000302169300002; volume:85; firstpage:032333; numberofpages:8; journal:PHYSICAL REVIEW A; http://hdl.handle.net/11571/511246Test; info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-84859256953; http://journals.aps.org/pra/abstract/10.1103/PhysRevA.85.032333Test |
| DOI: | 10.1103/PhysRevA.85.032333 |
| الإتاحة: | https://doi.org/10.1103/PhysRevA.85.032333Test http://hdl.handle.net/11571/511246Test |
| رقم الانضمام: | edsbas.2A32E8FC |
| قاعدة البيانات: | BASE |
| DOI: | 10.1103/PhysRevA.85.032333 |
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