Ultrafast energy exchange between two single Rydberg atoms on the nanosecond timescale

• URL: http://arxiv.org/abs/2111.12314v1
• Date: Wed, 24 Nov 2021 07:56:52 GMT
• Title: Ultrafast energy exchange between two single Rydberg atoms on the nanosecond timescale
• Authors: Yeelai Chew, Takafumi Tomita, Tirumalasetty Panduranga Mahesh, Seiji Sugawa, Sylvain de L\'es\'eleuc, Kenji Ohmori
• Abstract summary: We observe an interaction-driven energy exchange occuring in a timescale of nanoseconds, two orders of magnitude faster than in any previous work with Rydberg atoms. This opens the path for quantum simulation and computation operating at the speed-limit set by dipole-dipole interactions with this ultrafast Rydberg platform.
• Score: 0.0
• License: http://creativecommons.org/licenses/by-nc-nd/4.0/
• Abstract: Rydberg atoms, with their giant electronic orbitals, exhibit dipole-dipole interaction reaching the GHz range at a distance of a micron, making them a prominent contender for realizing quantum operations well within their coherence time. However, such strong interactions have never been harnessed so far, mainly because of the stringent requirements on the fluctuation of the atom positions and the necessary excitation strength. Here, using atoms trapped in the motional ground-state of optical tweezers and excited to a Rydberg state with picosecond pulsed lasers, we observe an interaction-driven energy exchange, i.e., a F\"orster oscilation, occuring in a timescale of nanoseconds, two orders of magnitude faster than in any previous work with Rydberg atoms. This ultrafast coherent dynamics gives rise to a conditional phase which is the key resource for an ultrafast controlled-$Z$ gate. This opens the path for quantum simulation and computation operating at the speed-limit set by dipole-dipole interactions with this ultrafast Rydberg platform.

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)
• Rabi oscillations and entanglement between two atoms interacting by the Rydberg blockade and with a quantized radiation field studied by the Jaynes-Cummings Model [0.0]
  Rydberg atoms are promising building blocks for two-qubit gates and atom-light quantum interfaces. We study the interaction between two Rydberg atoms interacting by the Rydberg blockade and a quantized radiation field.
  arXiv  Detail & Related papers  (2024-08-28T04:16:12Z)
• Quantum gates between distant atoms mediated by a Rydberg excitation antiferromagnet [0.0]
  We present a novel protocol to implement quantum gates between distant atomic qubits connected by an array of neutral atoms. The protocol is based on adiabatically transferring the atoms in the array to an antiferromagnetic-like state of Rydberg excitations using chirped laser pulses.
  arXiv  Detail & Related papers  (2024-08-21T11:44:09Z)
• Interacting Circular Rydberg Atoms Trapped in Optical Tweezers [0.0]
  Circular Rydberg atoms (CRAs) ideally combine long coherence times and strong interactions. We report the measurement and characterization of the resonant dipole-dipole interaction between two CRAs.
  arXiv  Detail & Related papers  (2024-07-04T18:24:53Z)
• Strong Spin-Motion Coupling in the Ultrafast Dynamics of Rydberg Atoms [0.0]
  We show a strong spin-motion coupling emerging from the large variation of the interaction potential over the wavefunction spread. We propose a novel approach to tune arbitrarily the strength of the spin-motion coupling relative to the motional energy scale set by trapping potentials.
  arXiv  Detail & Related papers  (2023-11-27T07:04:02Z)
• Dipolar quantum solids emerging in a Hubbard quantum simulator [45.82143101967126]
  Long-range and anisotropic interactions promote rich spatial structure in quantum mechanical many-body systems. We show that novel strongly correlated quantum phases can be realized using long-range dipolar interaction in optical lattices. This work opens the door to quantum simulations of a wide range of lattice models with long-range and anisotropic interactions.
  arXiv  Detail & Related papers  (2023-06-01T16:49:20Z)
• 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)
• Quantum Hall states for Rydberg atoms with laser-assisted dipole-dipole interactions [1.9662978733004601]
  We propose a novel scheme with laser-assisted dipole-dipole interactions to realize synthetic magnetic field for Rydberg atoms in a two-dimensional array configuration. This work opens an avenue for the realization of the highly-sought-after bosonic topological orders using Rydberg atoms.
  arXiv  Detail & Related papers  (2022-04-14T16:28:07Z)
• 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 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)
• 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.