Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Conference on Lasers and Electro-Optics

Experimental observation of multi-atom Dicke states in an atomic vapor using optical 2D coherent spectroscopy

ShaoGang Yu, Michael Titze, Yifu Zhu, Xiaojun Liu, Hebin Li

Published Jan 1, 2019• 0 citations
Publisher

Abstract

We report the first observation of two-, three-, four-, five-, six-, and seven-atom Dicke states in an atomic vapor using optical multi-quantum 2D coherent spectroscopy. This has significant implications in the studies of many-body physics.
DOI
10.1364/cleo_at.2019.jtu2a.25

Related papers

Experimental observation of multi-atom Dicke states in an atomic vapor using optical 2D coherent spectroscopy

ShaoGang Yu, Michael Titze, Yifu Zhu +2 more

We report the first observation of two-, three-, four-, five-, six-, and seven-atom Dicke states in an atomic vapor using optical multi-quantum 2D coherent spectroscopy. This has significant implications in the studies of many-body physics. © 2019 The Author(s)

Conference on Lasers and Electro-Optics•May 5, 2019•0 citations

Observation of scalable and deterministic multi-atom Dicke states in an atomic vapor

Shaogang Yu, Michael Titze, Yifu Zhu +2 more

Dicke state is fundamentally responsible for many intriguing collective behaviors of many-body systems. To experimentally study how a property of multi-particle states scales with the number of particles, it is essential to have the capability of preparing and measuring multi-particle states with scalable and deterministic number of particles. We report the first observation of Dicke states consisting of two to seven atoms in an atomic vapor by using optical two-dimensional coherent spectroscopy. The unique capability to selectively access specific multi-atom Dicke states in atomic vapors can enable new studies of many-body physics in the presence of thermal motion and offer new opportunities to utilize multi-atom Dicke states for quantum information processing.

arXiv:1807.09300•Optics Letters•May 24, 2019•65 citations

Optical 2D Coherent Spectroscopy of Many-body Interaction and Correlation in Atoms

Hebin Li

Optical 2D coherence spectroscopy was performed in dilute atomic vapors. The 2D spectra revealed long-range dipole-dipole interaction between atoms at a mean separation up to 16 micrometers and multi-atom correlation up to seven atoms.

Optical Sensors and Sensing Congress•Jan 1, 2020•0 citations

Optical two-dimensional coherent spectroscopy of many-body dipole–dipole interactions and correlations in atomic vapors

Danfu Liang, Hebin Li

Many-body interactions and correlations in atomic ensembles are fundamental in understanding many-body effects such as collective and emergent phenomena and also play an important role in various atom-based applications. Optical two-dimensional coherent spectroscopy (2DCS) provides a powerful tool to measure many-body interactions and correlations. Here, we present the study of many-body dipole-dipole interactions and correlations in potassium and rubidium atomic vapors by using double-quantum and multi-quantum 2DCS. The results show that double-quantum 2DCS provides sensitive and background-free detection of weak dipole-dipole interaction between atoms with a mean separation up to about 16 μm, and multi-quantum 2DCS can excite and detect multi-atom states (Dicke states) with up to eight correlated atoms. The technique of optical 2DCS can provide a new approach to study many-body physics in atomic ensembles and can be potentially implemented to measure many-body effects in cold atoms and other atomic/molecular systems.

The Journal of Chemical Physics•Jun 1, 2021•20 citations

Probing dipole-dipole interaction at cold-atom density range using optical two-dimensional coherent spectroscopy

ShaoGang Yu, Michael Titze, Xiaojun Liu +1 more

We experimentally demonstrate that the dipole-dipole interaction in a potassium vapor at cold atom density can be observed using optical 2D coherent spectroscopy. This paves the way to implement 2D spectroscopy in cold atoms.

Conference on Lasers and Electro-Optics•Jan 1, 2018•0 citations

Multidimensional coherent spectroscopy of atomic ensembles

Hebin Li, Bachana Lomsadze, Galan Moody +2 more

Abstract Multidimensional coherent spectroscopy (MDCS) of atomic ensembles is discussed in this chapter. Atomic vapors such as potassium and rubidium atomic vapors are used a model system for demonstrating MDCS. The technique of MDCS can also be used to probe many-body dipole-dipole interaction and correlation in atoms by using double-quantum 2D spectroscopy. Multi-quantum 2D spectroscopy can detect many-body correlations associated with coherent states of multiple atoms in atoms.

•Feb 28, 2023•0 citations
Dicke state is fundamentally responsible for many intriguing collective behaviors of many-body systems. To experimentally study how a property of multi-particle states scales with the number of particles, it is essential to have the capability of preparing and measuring multi-particle states with scalable and deterministic number of particles. We report the first observation of Dicke states consisting of two to seven atoms in an atomic vapor by using optical two-dimensional coherent spectroscopy. The unique capability to selectively access specific multi-atom Dicke states in atomic vapors can enable new studies of many-body physics in the presence of thermal motion and offer new opportunities to utilize multi-atom Dicke states for quantum information processing.
Many-body interactions and correlations in atomic ensembles are fundamental in understanding many-body effects such as collective and emergent phenomena and also play an important role in various atom-based applications. Optical two-dimensional coherent spectroscopy (2DCS) provides a powerful tool to measure many-body interactions and correlations. Here, we present the study of many-body dipole-dipole interactions and correlations in potassium and rubidium atomic vapors by using double-quantum and multi-quantum 2DCS. The results show that double-quantum 2DCS provides sensitive and background-free detection of weak dipole-dipole interaction between atoms with a mean separation up to about 16 μm, and multi-quantum 2DCS can excite and detect multi-atom states (Dicke states) with up to eight correlated atoms. The technique of optical 2DCS can provide a new approach to study many-body physics in atomic ensembles and can be potentially implemented to measure many-body effects in cold atoms and other atomic/molecular systems.