Optical coherent manipulation of alkaline-earth circular Rydberg states

• URL: http://arxiv.org/abs/2111.14504v1
• Date: Mon, 29 Nov 2021 12:52:09 GMT
• Title: Optical coherent manipulation of alkaline-earth circular Rydberg states
• Authors: Andrea Muni, L\'ea Lachaud, Angelo Couto, Michel Poirier, Raul Celistrino Teixeira, Jean-Michel Raimond, Michel Brune and S\'ebastien Gleyzes
• Abstract summary: We show how to use the electrostatic coupling between the two electrons of strontium to coherently manipulate a circular Rydberg state with optical pulses. This experiment opens the way to a state-selective spatially-resolved non-destructive detection of the circular states.
• Score: 0.0
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Rydberg atoms are ideal tools for quantum technologies. Due to their large size, their dipole-dipole interaction at micrometer-scale distances and their coupling to external fields are huge. Recent experiments vividly exhibit their interest for quantum simulation, in spite of limitations due to the relatively short lifetime of optically-accessible Rydberg levels. These limitations motivate a renewed interest for the long-lived circular Rydberg states . However, detecting them is so far either destructive or complex. Moreover, alkali circular states can be manipulated only by microwave fields, unable to address individual atoms. Alkaline earth circular states, with their optically active second valence electron, can circumvent these problems. Here we show how to use the electrostatic coupling between the two valence electrons of strontium to coherently manipulate a circular Rydberg state with optical pulses. We also use this coupling to map the state of the Rydberg electron onto that of the ionic core. This experiment opens the way to a state-selective spatially-resolved non-destructive detection of the circular states and, beyond, to the realization of a hybrid optical-microwave platform for quantum technology.

Related papers

• Observation of string breaking on a (2 + 1)D Rydberg quantum simulator [59.63568901264298]
  We report the observation of string breaking in synthetic quantum matter using a programmable quantum simulator. Our work paves a way to explore phenomena in high-energy physics using programmable quantum simulators.
  arXiv  Detail & Related papers  (2024-10-21T22:33:16Z)
• Rydberg-atom manipulation through strong interaction with free electrons [0.0]
  We theoretically investigate the interaction between free electrons and individual Rydberg atoms as an approach to induce nondipolar transitions. Our results support free electrons as powerful tools to manipulate Rydberg atoms in previously inaccessible ways.
  arXiv  Detail & Related papers  (2024-09-27T17:00:13Z)
• Quadrupole coupling of circular Rydberg qubits to inner shell excitations [0.0]
  Divalent atoms provide excellent means for advancing control in Rydberg atom-based quantum simulation and computing. We report the implementation of electric quadrupole coupling between the metastable 4D$_3/2$ level and a very high-$n$ ($n=79$) circular Rydberg qubit. Our results demonstrate access to weak electron-electron interactions in Rydberg atoms and expand the quantum simulation toolbox for optical control of highly excited circular state qubits.
  arXiv  Detail & Related papers  (2024-05-30T20:54:35Z)
• Long-Lived Circular Rydberg Qubits of Alkaline-Earth Atoms in Optical Tweezers [0.0]
  Coherence time and gate fidelities in Rydberg atom quantum simulators and computers are fundamentally limited by the Rydberg state lifetime. Circular Rydberg states are highly promising candidates to overcome this limitation by orders of magnitude. We report the first realization of alkaline-earth circular Rydberg atoms trapped in optical tweezers.
  arXiv  Detail & Related papers  (2024-01-19T11:07:47Z)
• Bound state of distant photons in waveguide quantum electrodynamics [137.6408511310322]
  Quantum correlations between distant particles remain enigmatic since the birth of quantum mechanics. We predict a novel kind of bound quantum state in the simplest one-dimensional setup of two interacting particles in a box. Such states could be realized in the waveguide quantum electrodynamics platform.
  arXiv  Detail & Related papers  (2023-03-17T09:27:02Z)
• Anderson localization of a Rydberg electron [68.8204255655161]
  Rydberg atoms inherit their level structure, symmetries, and scaling behavior from the hydrogen atom. limit is reached by simultaneously increasing the number of ground state atoms and the level of excitation of the Rydberg atom.
  arXiv  Detail & Related papers  (2021-11-19T18:01:24Z)
• Quantum Computing with Circular Rydberg Atoms [0.0]
  We propose a novel approach to Rydberg atom arrays using long-lived circular Rydberg states in optical traps. We project that arrays of hundreds of circular Rydberg atoms with two-qubit gate errors around $10-5$ can be realized using current technology.
  arXiv  Detail & Related papers  (2021-03-23T18:00:00Z)
• Quantum chaos driven by long-range waveguide-mediated interactions [125.99533416395765]
  We study theoretically quantum states of a pair of photons interacting with a finite periodic array of two-level atoms in a waveguide. Our calculation reveals two-polariton eigenstates that have a highly irregular wave-function in real space.
  arXiv  Detail & Related papers  (2020-11-24T07:06:36Z)
• Preparation of Long-Lived, Non-Autoionizing Circular Rydberg States of Strontium [0.0]
  Strontium circular Rydberg atoms with a core excited in a $4D$ metastable level are impervious to autoionization over more than a few millisecond time scale. We observe singlet to triplet transitions due to the core optical manipulations, opening the way to a quantum microwave to optical interface.
  arXiv  Detail & Related papers  (2020-06-29T10:28:36Z)
• Quantum Hall phase emerging in an array of atoms interacting with photons [101.18253437732933]
  Topological quantum phases underpin many concepts of modern physics. Here, we reveal that the quantum Hall phase with topological edge states, spectral Landau levels and Hofstadter butterfly can emerge in a simple quantum system. Such systems, arrays of two-level atoms (qubits) coupled to light being described by the classical Dicke model, have recently been realized in experiments with cold atoms and superconducting qubits.
  arXiv  Detail & Related papers  (2020-03-18T14:56:39Z)
• High-Fidelity Entanglement and Detection of Alkaline-Earth Rydberg Atoms [48.093689931392866]
  Controlled two-qubit entanglement generation has so far been limited to alkali species. We demonstrate a novel approach utilizing the two-valence electron structure of individual alkaline-earth Rydberg atoms. We find fidelities for Rydberg state detection, single-atom Rabi operations, and two-atom entanglement surpassing previously published values.
  arXiv  Detail & Related papers  (2020-01-13T18:42:42Z)

This list is automatically generated from the titles and abstracts of the papers in this site.

This site does not guarantee the quality of this site (including all information) and is not responsible for any consequences.