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Protocol for fermionic positive-operator-valued measures

Accepted version
Peer-reviewed

Type

Article

Change log

Authors

Arvidsson-Shukur, DRM 
Lepage, HV 
Owen, ET 
Ferrus, T 
Barnes, CHW 

Abstract

© 2017 American Physical Society. In this paper we present a protocol for the implementation of a positive-operator-valued measure (POVM) on massive fermionic qubits. We present methods for implementing nondispersive qubit transport, spin rotations, and spin polarizing beam-splitter operations. Our scheme attains linear opticslike control of the spatial extent of the qubits by considering ground-state electrons trapped in the minima of surface acoustic waves in semiconductor heterostructures. Furthermore, we numerically simulate a high-fidelity POVM that carries out Procrustean entanglement distillation in the framework of our scheme, using experimentally realistic potentials. Our protocol can be applied not only to pure ensembles with particle pairs of known identical entanglement, but also to realistic ensembles of particle pairs with a distribution of entanglement entropies. This paper provides an experimentally realizable design for future quantum technologies.

Description

Keywords

5108 Quantum Physics, 51 Physical Sciences

Journal Title

Physical Review A

Conference Name

Journal ISSN

2469-9926
2469-9934

Volume Title

96

Publisher

American Physical Society (APS)

Rights

All rights reserved
Sponsorship
EPSRC (1491965)
European Commission Horizon 2020 (H2020) Marie Sk?odowska-Curie actions (642688)