Cold atoms, photons, and quantum correlations

• Grant number: 19/13143-0
• Support Opportunities: Regular Research Grants
• Start date: November 01, 2019
• End date: October 31, 2023
• Field of knowledge: Physical Sciences and Mathematics - Physics - Atomic and Molecular Physics
• Agreement: ANR
• Principal Investigator: Celso Jorge Villas-Bôas
• Grantee: Celso Jorge Villas-Bôas
• Principal researcher abroad: Hugbart Mathilde
• Institution abroad: Institut de Physique de Nice (INPHYNI), France
• Host Institution: Centro de Ciências Exatas e de Tecnologia (CCET). Universidade Federal de São Carlos (UFSCAR). São Carlos , SP, Brazil
• Associated researchers: Alan Costa dos Santos ; Celso Jorge Villas-Bôas ; Philippe Wilhelm Courteille ; Raul Celistrino Teixeira
• Associated research grant(s): 22/14210-6 - Quantum points of interest, AP.R SPRINT; 20/00725-9 - Photonic quantum dot interaction, AP.R SPRINT

Abstract

Devices for quantum information computation and communication require the combined use of different quantum systems: photons can transmit informations over large distances, cold trapped atoms can be manipulated to enable quantum information processing, and atomic ensembles are suited for long-lived quantum memories, as well as non-linear generation of non-classical correlations. Cold atoms are a promising platform to manipulate light, and in this project we will focus on two specific quantum information tools: sources of correlated photons and memories, exploiting collective, multimode quantum states of atomic ensembles. We will address cooperative scattering in large atomic clouds to enhance these properties, i.e., we aim at showing how dipole-dipole interactions make it possible to tune both the lifetime and the optical coherences of the emitted light. (AU)

Scientific publications

(14)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

SANTOS, ALAN C.; CIDRIM, ANDRE; VILLAS-BOAS, CELSO JORGE; KAISER, ROBIN; BACHELARD, ROMAIN. Generating long-lived entangled states with free-space collective spontaneous emission. PHYSICAL REVIEW A, v. 105, n. 5, p. 6-pg., 2022-05-20. (18/15554-5, 19/22685-1, 19/13143-0, 21/10224-0, 17/09390-7, 19/11999-5)

BOJER, MANUEL; GOETZENDOERFER, LUKAS; BACHELARD, ROMAIN; VON ZANTHIER, JOACHIM. Engineering of spontaneous emission in free space via conditional measurements. PHYSICAL REVIEW RESEARCH, v. 4, n. 4, p. 6-pg., 2022-10-11. (18/15554-5, 19/13143-0)

FERREIRA, DILLEYS; BACHELARD, ROMAIN; GUERIN, WILLIAM; KAISER, ROBIN; FOUCHE, MATHILDE. Connecting field and intensity correlations: The Siegert relation and how to test it. American Journal of Physics, v. 88, n. 10, p. 7-pg., 2020-10-01. (18/01447-2, 19/13143-0, 18/15554-5)

SANTOS, ALAN C.; BACHELARD, R.. Generation of Maximally Entangled Long-Lived States with Giant Atoms in a Waveguide. Physical Review Letters, v. 130, n. 5, p. 6-pg., 2023-02-03. (19/13143-0, 21/10224-0, 19/22685-1, 18/15554-5)

OLIVEIRA, MURILO H.; HIGGINS, GERARD; ZHANG, CHI; PREDOJEVIC, ANA; HENNRICH, MARKUS; BACHELARD, ROMAIN; VILLAS-BOAS, CELSO J.. Steady-state entanglement generation for nondegenerate qubits. PHYSICAL REVIEW A, v. 107, n. 2, p. 7-pg., 2023-02-06. (19/13143-0, 19/11999-5, 20/00725-9, 18/15554-5)

CIDRIM, A.; DO ESPIRITO SANTO, T. S.; SCHACHENMAYER, J.; KAISER, R.; BACHELARD, R.. Photon Blockade with Ground-State Neutral Atoms. Physical Review Letters, v. 125, n. 7, AUG 13 2020. (17/09390-7, 18/15554-5, 18/12653-2, 18/01447-2, 19/13143-0)

DARSHESHDAR, ELNAZ; HUGBART, MATHILDE; BACHELARD, ROMAIN; VILLAS-BOAS, CELSO JORGE. Photon-photon correlations from a pair of strongly coupled two-level emitters. PHYSICAL REVIEW A, v. 103, n. 5, p. 9-pg., 2021-05-06. (18/15554-5, 18/01447-2, 19/13143-0, 18/10813-2, 19/11999-5)

CIPRIS, A.; MOREIRA, N. A.; DO ESPIRITO SANTO, T. S.; WEISS, P.; VILLAS-BOAS, C. J.; KAISER, R.; GUERIN, W.; BACHELARD, R.. Subradiance with Saturated Atoms: Population Enhancement of the Long-Lived States. Physical Review Letters, v. 126, n. 10, MAR 12 2021. (19/02071-9, 19/13143-0, 18/15554-5, 18/12653-2, 18/01447-2, 19/11999-5)

HU, CHANG-KANG; QIU, JIAWEI; SOUZA, PAULO J. P.; YUAN, JIAHAO; ZHOU, YUXUAN; ZHANG, LIBO; CHU, JI; PAN, XIANCHUANG; HU, LING; LI, JIAN; et al. Optimal charging of a superconducting quantum battery. QUANTUM SCIENCE AND TECHNOLOGY, v. 7, n. 4, p. 15-pg., 2022-10-01. (18/15554-5, 21/10224-0, 19/13143-0, 19/22685-1, 19/11999-5)

CRUZ, CLEBSON; ANKA, MARON F.; REIS, MARIO S.; BACHELARD, ROMAIN; SANTOS, ALAN C.. Quantum battery based on quantum discord at room temperature. QUANTUM SCIENCE AND TECHNOLOGY, v. 7, n. 2, p. 15-pg., 2022-04-01. (19/13143-0, 18/15554-5, 19/22685-1)

CIDRIM, A.; ORIOLI, A. PINEIRO; SANNER, C.; HUTSON, R. B.; YE, J.; BACHELARD, R.; REY, A. M.. Dipole-Dipole Frequency Shifts in Multilevel Atoms. Physical Review Letters, v. 127, n. 1, JUN 30 2021. (18/15554-5, 18/18353-0, 19/13143-0, 17/09390-7)

RICARDO, ALEXANDRE C.; FERNANDES, GABRIEL P. L. M.; DUZZIONI, EDUARDO I.; CAMPO, VIVALDO L.; VILLAS-BOAS, CELSO J.. Alternatives to a nonhomogeneous partial differential equation quantum algorithm. PHYSICAL REVIEW A, v. 106, n. 5, p. 10-pg., 2022-11-28. (19/11999-5, 19/13143-0)

LASSEGUES, PIERRE; BISCASSI, MATEUS ANTONIO FERNANDES; MORISSE, MARTIAL; CIDRIM, ANDRE; MATTHEWS, NOLAN; LABEYRIE, GUILLAUME; RIVET, JEAN-PIERRE; VAKILI, FARROKH; KAISER, ROBIN; GUERIN, WILLIAM; et al. Field and intensity correlations: the Siegert relation from stars to quantum emitters. EUROPEAN PHYSICAL JOURNAL D, v. 76, n. 12, p. 12-pg., 2022-12-01. (18/15554-5, 19/13143-0, 17/09390-7)

PIOVELLA, N.; ROBB, G. R. M.; BACHELARD, R.. Superradiant transfer of quantized orbital angular momentum between light and atoms in a ring trap. PHYSICAL REVIEW A, v. 106, n. 1, p. 5-pg., 2022-07-28. (18/15554-5, 19/13143-0, 19/12842-2)