Quantum entanglement and teleportation in pulsed cavity optomechanics

Autor(en)

Sebastian Hofer, Witlef Wieczorek, Markus Aspelmeyer, Klemens Hammerer

Abstrakt

Entangling a mechanical oscillator with an optical mode is an enticing and yet a very challenging goal in cavity-optomechanics. Here we propose a pulsed scheme to create EPR-type entanglement between a travelling-wave light pulse and a mechanical oscillator. The entanglement can be verified unambiguously by a pump--probe sequence of pulses. In contrast to schemes that work in a steady-state regime under continuous wave drive our protocol is not subject to stability requirements, which normally limit the strength of achievable entanglement. The protocol can readily be extended to realize quantum state teleportation of states of light onto the mechanical oscillator. It is robust against mechanical decoherence and is shown to work in current state-of-the-art systems.

Organisation(en)

Quantenoptik, Quantennanophysik und Quanteninformation

Externe Organisation(en)

Gottfried Wilhelm Leibniz Universität Hannover

Journal

Physical Review A

Band

84

Anzahl der Seiten

10

ISSN

1050-2947

DOI

https://doi.org/10.1103/PhysRevA.84.052327

Publikationsdatum

2011

Peer-reviewed

Ja

ÖFOS 2012

103026 Quantenoptik, 210006 Nanotechnologie, 103025 Quantenmechanik, 203017 Mikromechanik

Link zum Portal

https://ucrisportal.univie.ac.at/de/publications/65b0b1a6-153b-4f79-b453-1806ded71424