Coherent control of addressable Rydberg atoms for hybrid quantum information processing

Research output: Contribution to conferencePoster

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Abstract

Neutral atoms provide an excellent resource for quantum information processing, combining the long atomic coherence times of the hyperfine ground-state with strong dipole-dipole interactions of highly excited Rydberg states for generating deterministic entanglement between qubits separated by < 10 µm [1]. Scalable long-range interactions can be obtained by coupling the atomic array to a superconducting microwave cavity enabling hybrid quantum information processing where the cavity-mediated entanglement allows atoms to be coupled over cm length scales. We present the first steps towards such an experiment incorporating high fidelity readout using an sCMOS camera [2] and the ability to drive fast, optically addressable rotations of the hyperfine-encoded qubits to the Rydberg state. Using our sub-kHz cavitystabilised laser system [3] we demonstrate coherent control of single Rydberg atoms, performing Ramsey spectroscopy to determine coherence time and to generate entanglement between a pair of atoms separated by 6 µm. Combining this excitation scheme with our ground-state Raman lasers we show progress towards the implementation of a mesoscopic Rydberg gate based on electromagnetically induced transparency (EIT) offering robust entanglement of multi-atom ensembles [4].
Original languageEnglish
Number of pages1
Publication statusPublished - 25 Jul 2018
Event26th International Conference on Atomic Physics - Barcelona, Spain
Duration: 22 Jul 201827 Jul 2018

Conference

Conference26th International Conference on Atomic Physics
Abbreviated titleICAP2018
CountrySpain
CityBarcelona
Period22/07/1827/07/18

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atoms
dipoles
cavities
ground state
Raman lasers
neutral atoms
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resources
cameras
interactions
microwaves
spectroscopy
excitation
lasers

Keywords

  • quantum information processing
  • highly excited Rydberg states
  • Rydberg atoms
  • Ramsey spectroscopy

Cite this

Picken, C. J., Legaie, R., McDonnell, K., & Pritchard, J. D. (2018). Coherent control of addressable Rydberg atoms for hybrid quantum information processing. Poster session presented at 26th International Conference on Atomic Physics, Barcelona, Spain.
Picken, C. J. ; Legaie, R. ; McDonnell, K. ; Pritchard, J. D. / Coherent control of addressable Rydberg atoms for hybrid quantum information processing. Poster session presented at 26th International Conference on Atomic Physics, Barcelona, Spain.1 p.
@conference{beb7d4759b644f63a82c42f13d258384,
title = "Coherent control of addressable Rydberg atoms for hybrid quantum information processing",
abstract = "Neutral atoms provide an excellent resource for quantum information processing, combining the long atomic coherence times of the hyperfine ground-state with strong dipole-dipole interactions of highly excited Rydberg states for generating deterministic entanglement between qubits separated by < 10 µm [1]. Scalable long-range interactions can be obtained by coupling the atomic array to a superconducting microwave cavity enabling hybrid quantum information processing where the cavity-mediated entanglement allows atoms to be coupled over cm length scales. We present the first steps towards such an experiment incorporating high fidelity readout using an sCMOS camera [2] and the ability to drive fast, optically addressable rotations of the hyperfine-encoded qubits to the Rydberg state. Using our sub-kHz cavitystabilised laser system [3] we demonstrate coherent control of single Rydberg atoms, performing Ramsey spectroscopy to determine coherence time and to generate entanglement between a pair of atoms separated by 6 µm. Combining this excitation scheme with our ground-state Raman lasers we show progress towards the implementation of a mesoscopic Rydberg gate based on electromagnetically induced transparency (EIT) offering robust entanglement of multi-atom ensembles [4].",
keywords = "quantum information processing, highly excited Rydberg states, Rydberg atoms, Ramsey spectroscopy",
author = "Picken, {C. J.} and R. Legaie and K. McDonnell and Pritchard, {J. D.}",
year = "2018",
month = "7",
day = "25",
language = "English",
note = "26th International Conference on Atomic Physics, ICAP2018 ; Conference date: 22-07-2018 Through 27-07-2018",

}

Picken, CJ, Legaie, R, McDonnell, K & Pritchard, JD 2018, 'Coherent control of addressable Rydberg atoms for hybrid quantum information processing' 26th International Conference on Atomic Physics, Barcelona, Spain, 22/07/18 - 27/07/18, .

Coherent control of addressable Rydberg atoms for hybrid quantum information processing. / Picken, C. J.; Legaie, R.; McDonnell, K.; Pritchard, J. D.

2018. Poster session presented at 26th International Conference on Atomic Physics, Barcelona, Spain.

Research output: Contribution to conferencePoster

TY - CONF

T1 - Coherent control of addressable Rydberg atoms for hybrid quantum information processing

AU - Picken, C. J.

AU - Legaie, R.

AU - McDonnell, K.

AU - Pritchard, J. D.

PY - 2018/7/25

Y1 - 2018/7/25

N2 - Neutral atoms provide an excellent resource for quantum information processing, combining the long atomic coherence times of the hyperfine ground-state with strong dipole-dipole interactions of highly excited Rydberg states for generating deterministic entanglement between qubits separated by < 10 µm [1]. Scalable long-range interactions can be obtained by coupling the atomic array to a superconducting microwave cavity enabling hybrid quantum information processing where the cavity-mediated entanglement allows atoms to be coupled over cm length scales. We present the first steps towards such an experiment incorporating high fidelity readout using an sCMOS camera [2] and the ability to drive fast, optically addressable rotations of the hyperfine-encoded qubits to the Rydberg state. Using our sub-kHz cavitystabilised laser system [3] we demonstrate coherent control of single Rydberg atoms, performing Ramsey spectroscopy to determine coherence time and to generate entanglement between a pair of atoms separated by 6 µm. Combining this excitation scheme with our ground-state Raman lasers we show progress towards the implementation of a mesoscopic Rydberg gate based on electromagnetically induced transparency (EIT) offering robust entanglement of multi-atom ensembles [4].

AB - Neutral atoms provide an excellent resource for quantum information processing, combining the long atomic coherence times of the hyperfine ground-state with strong dipole-dipole interactions of highly excited Rydberg states for generating deterministic entanglement between qubits separated by < 10 µm [1]. Scalable long-range interactions can be obtained by coupling the atomic array to a superconducting microwave cavity enabling hybrid quantum information processing where the cavity-mediated entanglement allows atoms to be coupled over cm length scales. We present the first steps towards such an experiment incorporating high fidelity readout using an sCMOS camera [2] and the ability to drive fast, optically addressable rotations of the hyperfine-encoded qubits to the Rydberg state. Using our sub-kHz cavitystabilised laser system [3] we demonstrate coherent control of single Rydberg atoms, performing Ramsey spectroscopy to determine coherence time and to generate entanglement between a pair of atoms separated by 6 µm. Combining this excitation scheme with our ground-state Raman lasers we show progress towards the implementation of a mesoscopic Rydberg gate based on electromagnetically induced transparency (EIT) offering robust entanglement of multi-atom ensembles [4].

KW - quantum information processing

KW - highly excited Rydberg states

KW - Rydberg atoms

KW - Ramsey spectroscopy

UR - http://icap2018.eu/

M3 - Poster

ER -

Picken CJ, Legaie R, McDonnell K, Pritchard JD. Coherent control of addressable Rydberg atoms for hybrid quantum information processing. 2018. Poster session presented at 26th International Conference on Atomic Physics, Barcelona, Spain.