Channel Coding of a Quantum Measurement
| Autor: | Joonwoo Bae, Filip Wudarski, Chahan M. Kropf, Spiros Kechrimparis |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Quantum Physics
Channel code LOCC Computer Networks and Communications Computer science Hilbert space FOS: Physical sciences 020206 networking & telecommunications 02 engineering and technology Topology symbols.namesake Qubit 0202 electrical engineering electronic engineering information engineering symbols Electrical and Electronic Engineering Quantum Physics (quant-ph) Quantum information science Protocol (object-oriented programming) Quantum Communication channel Quantum computer |
| Zdroj: | IEEE Journal on Selected Areas in Communications. 38:439-448 |
| ISSN: | 1558-0008 0733-8716 |
| Popis: | In this work, we consider the preservation of a measurement for quantum systems interacting with an environment. Namely, a method of preserving an optimal measurement over a channel is devised, what we call channel coding of a quantum measurement in that operations are applied before and after a channel in order to protect a measurement. A protocol that preserves a quantum measurement over an arbitrary channel is shown only with local operations and classical communication without the use of a larger Hilbert space. Therefore, the protocol is readily feasible with present day's technologies. Channel coding of qubit measurements is presented, and it is shown that a measurement can be preserved for an arbitrary channel for both i) pairs of qubit states and ii) ensembles of equally probable states. The protocol of preserving a quantum measurement is demonstrated with IBM quantum computers. 9pages, 3 figures |
| Databáze: | OpenAIRE |
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