Title: Entangled two-plasmon generation in carbon nanotubes and graphene-coated wires

Abstract

Here, we investigate the two-plasmon spontaneous decay of a quantum emitter near single-walled carbon nanotubes (SWCNTs) and graphene-coated wires (GCWs). We demonstrate efficient, enhanced generation of two-plasmon entangled states in SWCNTs due to the strong coupling between tunable guided plasmons and the quantum emitter. We predict two-plasmon emission rates more than twelve orders of magnitude higher than in free space, with average lifetimes of a few dozen nanoseconds. Given their low dimensionality, these systems could be more efficient for generating and detecting entangled plasmons in comparison to extended graphene. Indeed, we achieve a tunable spectrum of emission in GCWs, where sharp resonances occur precisely at the plasmons' minimum excitation frequencies. We show that by changing the material properties of the GCW's dielectric core, one could tailor the dominant modes and frequencies of the emitted entangled plasmons while keeping the decay rate ten orders of magnitude higher than in free space. By unveiling the unique properties of two-plasmon spontaneous emission processes in the presence of low-dimensional carbon-based nanomaterials, our findings set the basis for a novel material platform with applications to on-chip quantum information technologies.

Authors:

Muniz, Y.  ^[1];

• Search DOE PAGES for author "Muniz, Y."
• Search DOE PAGES for ORCID "0000-0002-1037-727X"

Abrantes, P. P.  ^[1];

• Search DOE PAGES for author "Abrantes, P. P."
• Search DOE PAGES for ORCID "0000-0002-6854-2223"

Martín-Moreno, L.  ^[2];

• Search DOE PAGES for author "Martín-Moreno, L."
• Search DOE PAGES for ORCID "0000-0001-9273-8165"

Pinheiro, F. A. ^[1]; Farina, C. ^[1]; Kort-Kamp, W. M.  ^[3]

• Search DOE PAGES for author "Kort-Kamp, W. M."
• Search DOE PAGES for ORCID "0000-0002-0679-6690"

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+ Show Author Affiliations

1. Universidade Federal do Rio de Janeiro (Brazil)
2. CSIC-Universidad de Zaragoza (Spain)
3. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Publication Date:

Mon Apr 11 00:00:00 EDT 2022

Research Org.:

Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Org.:

USDOE National Nuclear Security Administration (NNSA); USDOE Laboratory Directed Research and Development (LDRD) Program; Coordenacao de Aperfeicoamento de Pessoal de Nıvel Superior (CAPES); Conselho Nacional de Desenvolvimento Cienıfico e Tecnologico (CNPq); Ministry of Science and Higher Education of the Russian Federation; Aragon Government

OSTI Identifier:

1869621

Report Number(s):

LA-UR-21-31553
Journal ID: ISSN 2469-9950; TRN: US2306424

Grant/Contract Number:  

89233218CNA000001; 310365/2018-0; 075-15-2021-606; Q-503MAD

Resource Type:

Accepted Manuscript

Journal Name:

Physical Review. B

Additional Journal Information:

Journal Volume: 105; Journal Issue: 16; Journal ID: ISSN 2469-9950

Publisher:

American Physical Society (APS)

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; nonlinear optics; plasmonics; plasmons; second order nonlinear optical processes; spontaneous emission; surface plasmon polariton; graphene; nanotubes; nanowires; dipole approximation; perturbative methods