Detail publikace

Entangling free electrons and optical excitations

KONEČNÁ, A. IYIKANAT, F. DE ABAJO, F.

Originální název

Entangling free electrons and optical excitations

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

The inelastic interaction between flying particles and optical nanocavities gives rise to entangled states in which some excitations of the latter are paired with momentum changes in the former. Specifically, free-electron entanglement with nanocavity modes opens appealing opportunities associated with the strong interaction capabilities of the electrons. However, the achievable degree of entanglement is currently limited by the lack of control over the resulting state mixtures. Here, we propose a scheme to generate pure entanglement between designated optical-cavity excitations and separable free-electron states. We shape the electron wave function profile to select the accessible cavity modes and simultaneously associate them with targeted electron scattering directions. This concept is exemplified through theoretical calculations of free-electron entanglement with degenerate and nondegenerate plasmon modes in silver nanoparticles and atomic vibrations in an inorganic molecule. The generated entanglement can be further propagated through its electron component to extend quantum interactions beyond existing protocols.

Klíčová slova

Electrons; Quantum entanglement; Silver nanoparticles; Wave functions

Autoři

KONEČNÁ, A.; IYIKANAT, F.; DE ABAJO, F.

Vydáno

1. 11. 2022

ISSN

2375-2548

Periodikum

Science Advances

Ročník

8

Číslo

47

Stát

Spojené státy americké

Strany od

1

Strany do

8

Strany počet

8

URL

https://www.science.org/doi/10.1126/sciadv.abo7853

BibTex

@article{BUT182586,
  author="KONEČNÁ, A. and IYIKANAT, F. and DE ABAJO, F.",
  title="Entangling free electrons and optical excitations",
  journal="Science Advances",
  year="2022",
  volume="8",
  number="47",
  pages="1--8",
  doi="10.1126/sciadv.abo7853",
  issn="2375-2548",
  url="https://www.science.org/doi/10.1126/sciadv.abo7853"
}