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

Abstract

Dicke state, a coherent state of multiple particles, is fundamentally responsible for various intriguing collective behaviors of many-body systems. Experimental access to Dicke states with a scalable and deterministic number of particles is essential to study how many-body properties depend on the particle number. We report the observation of Dicke states consisting of two, three, four, five, six, and seven atoms in an atomic vapor. Quantum coherences between the ground state and multi-atom states are created and detected by using optical two-dimensional coherent spectroscopy. The signal originated from multi-atom states is manifested as correlation between the multi-quantum coherence and the emission signal, providing direct and unambiguous detection of Dicke states. The manipulation of deterministic atomic Dicke states has possible implications in quantum information processing and fundamental many-body physics.

arXiv comment16 pages, 6 figures

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Cited by in corpus (14)

• Long range dipole-dipole interaction in atomic vapors probed by double-quantum two-dimensional coherent spectroscopy
• Fast phase cycling in non-collinear optical two-dimensional coherent spectroscopy
• Coherent multidimensional spectroscopy in the gas phase
• Effects of high pulse intensity and chirp in two-dimensional electronic spectroscopy of an atomic vapor
• A flexible and scalable, fully software-based lock-in amplifier for nonlinear spectroscopy
• High-resolution two-dimensional electronic spectroscopy reveals homogeneous line profiles in isolated nanoparticles
• Collective resonance of $D$ states in rubidium atoms probed by optical two-dimensional coherent spectroscopy
• Machine Learning Enabled Lineshape Analysis in Optical Two-Dimensional Coherent Spectroscopy
• Optical Two-dimensional Coherent Spectroscopy of Cold Atoms
• Two-dimensional electronic spectroscopy of an ultracold gas
• Observations of Ultrafast Superfluorescent Beatings in a Cesium Atomic Vapor Excited by Femtosecond Laser Pulses
• Broadband Optical Two-Dimensional Coherent Spectroscopy of a Rubidium Atomic Vapor
• Pulse area dependence of multiple quantum coherence signals in dilute thermal gases
• The Doppler shifts of resonant fluorescence spectrum for a two-level 85Rb atom via multiphoton Compton scattering