ac electric-field-induced resonant energy transfer between cold Rydberg atoms

Petrus, Joseph A.; Bohlouli-Zanjani, P.; Martin, J. D. D.

doi:10.1088/0953-4075/41/24/245001

Cited by 15 publications

(10 citation statements)

References 21 publications

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“…9, enhancing energytransfer collision rates. They then demonstrated resonant f − g microwave coupling to accomplish the same purpose (Petrus et al, 2008). As with the (Carroll et al, 2004) experiment, this coupling has a relatively small effect on the energies of the initial d-states.…”

Section: Tuning the Interaction With External Fieldsmentioning

confidence: 88%

Quantum information with Rydberg atoms

2010

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Rydberg atoms with principal quantum number n >> 1 have exaggerated atomic properties including dipole-dipole interactions that scale as n^4 and radiative lifetimes that scale as n^3. It was proposed a decade ago to take advantage of these properties to implement quantum gates between neutral atom qubits. The availability of a strong, long-range interaction that can be coherently turned on and off is an enabling resource for a wide range of quantum information tasks stretching far beyond the original gate proposal. Rydberg enabled capabilities include long-range two-qubit gates, collective encoding of multi-qubit registers, implementation of robust light-atom quantum interfaces, and the potential for simulating quantum many body physics. We review the advances of the last decade, covering both theoretical and experimental aspects of Rydberg mediated quantum information processing.Comment: accepted version, to appear in Rev. Mod. Phys., 40 figures

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Section: Tuning the Interaction With External Fieldsmentioning

confidence: 88%

Quantum information with Rydberg atoms

2010

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“…The controllable interactions of the Rydberg states have been studied in a variety of regimes, demonstrating resonant energy transfer [41][42][43][44] and mechanical effects of dipole-dipole interactions, namely ionisation due to the attractive or repulsive potentials [45,46]. Important steps towards exploiting the strong interactions for quantum information were the observation of coherent excitation of the Rydberg states [47][48][49] and the demonstration of dipole blockade [50][51][52][53][54][55][56][57][58][59].…”

Section: Rydberg Atomsmentioning

confidence: 99%

“…In this regime the sample can be treated as a frozen Rydberg gas [41,166] where the Rydberg interactions represent the largest energy scale in the system, allowing studies of the excitation dynamics e.g. resonant energy transfer [41][42][43][44], mechanical effects of dipoledipole interactions [45,46], dipole blockade [50-56, 58, 59, 160] and formation of long-range molecules [116,167]. These ultra-cold samples are also ideal for precision measurements of quantum defects [92,93,168] and lifetimes [169,170] of the Rydberg states.…”

Section: Part IImentioning

confidence: 99%

Cooperative Optical Non-Linearity in a Blockaded Rydberg Ensemble

Pritchard¹

2012

Springer Theses

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This thesis describes the observation of a novel optical non-linearity mediated by the dipole-dipole interactions in a cold gas of Rydberg atoms. Electromagnetically induced transparency (EIT) is used to map the strong dipolar interactions onto an optical transition, resulting in a cooperative effect where the optical response of a single atom is modified by the surrounding atoms due to dipole blockade. This optical non-linearity is characterised as a function of probe power and density for both attractive and repulsive interactions, demonstrating a non-linear density dependence associated with cooperativity. For the case of repulsive interactions, excellent agreement is obtained at low densities between experimental data and an interacting three-atom model. The ability to tune the interactions with an external field is also verified.This cooperative effect can be used to manipulate light at the single photon level, which is relevant for applications in quantum information processing. A theoretical model is developed to show that the non-linearity can be used to obtain a highly correlated single-photon output from a coherent laser field interacting with a single blockade region. Progress towards observing this experimentally is described, including details of the construction of a new apparatus capable of confining atoms to within a blockade radius.

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“…Here one can make use of the high susceptibility of Rydberg states to electric and magnetic fields [15], which permits us to manipulate their interactions by applying moderate external fields. Experiments have explored the effects of static magnetic and electric [14,[16][17][18][19] fields, where the latter can be used to induce static dipole moments or dipole-coupled pair resonances, both resulting in direct dipole-dipole interactions. Timevarying, i.e.…”

Section: Introductionmentioning

confidence: 99%

Microwave control of Rydberg atom interactions

Sevinçli

Pohl

2014

New J. Phys.

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We investigate the interaction between Rydberg atoms, whose electronic states are dressed by multiple microwave fields. Numerical calculations are used for an exact description of the microwave induced interactions, and employed to benchmark a perturbative treatment that yields simple insights into the involved mechanisms. Based on this theory, we demonstrate that microwave dressing provides a powerful approach to control dipolar as well as van der Waals interactions and even permits us to turn them off entirely. In addition, the proposed scheme also opens up possibilities for engineering dominant threebody interactions.

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ac electric-field-induced resonant energy transfer between cold Rydberg atoms

Cited by 15 publications

References 21 publications

Quantum information with Rydberg atoms

Quantum information with Rydberg atoms

Cooperative Optical Non-Linearity in a Blockaded Rydberg Ensemble

Microwave control of Rydberg atom interactions

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