Photon-Mediated Interactions Between Distant Artificial Atoms

Loo, Arjan F. van; Fedorov, Arkady; Lalumière, Kevin; Sanders, Barry C.; Blais, Alexandre; Wallraff, Andreas

doi:10.1126/science.1244324

Cited by 528 publications

(494 citation statements)

References 30 publications

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“…While this Review has described some applications that utilize the high Q, there are many more opportunities such as in nonlinearity enhancement and in quantum optical applications that have not been explored. The long-range interactions in FabryPérot BICs may be useful for nanophotonic circuits 104 and for quantum information processing 105,106 . It has also been proposed that the light intensity may act as another tuning parameter in nonlinear materials, which may enable robust BICs 248 , tunable channel dropping 249 , light storage and release 250,251 , and frequency comb generation 252 .…”

Section: Discussionmentioning

confidence: 99%

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Bound states in the continuum

et al. 2016

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Bound states in the continuum are waves that, defying conventional wisdom, remain localized even though they coexist with a continuous spectrum of radiating waves that can carry energy away. Their existence was first proposed in quantum mechanics and, being a general wave phenomenon, later identified in electromagnetic, acoustic, and water waves. They have been studied in a wide variety of material systems such as photonic crystals, optical waveguides and fibers, piezoelectric materials, quantum dots, graphene, and topological insulators. This Review describes recent developments in this field with an emphasis on the physical mechanisms that lead to these unusual states across the seemingly very different platforms. We discuss recent experimental realizations, existing applications, and directions for future work.

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Section: Discussionmentioning

confidence: 99%

“…Such long-range interactions have been studied in cavities or qubits coupled through a waveguide [104][105][106] and for two leaky solitons coupled through free-space radiation 107 .…”

Section: Fabry-pérot Bic (Through Coupled Resonances)mentioning

confidence: 99%

Bound states in the continuum

et al. 2016

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“…The fit yields an extinction 1 − T min ≈ 0.87 AE 0.17 for the bare TMD monolayer. We emphasize that extinction factors of this magnitude were previously only reported for transmon qubits coupled to superconducting microwave waveguides [22].…”

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confidence: 96%

Realization of an Electrically Tunable Narrow-Bandwidth Atomically Thin Mirror Using MonolayerMoSe2

et al. 2018

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Advent of new materials such as van der Waals heterostructures, propels new research directions in condensed matter physics and enables development of novel devices with unique functionalities. Here, we show experimentally that a monolayer of MoSe 2 embedded in a charge controlled heterostructure can be used to realize an electrically tunable atomically-thin mirror, that effects 90% extinction of an incident field that is resonant with its exciton transition. The corresponding maximum reflection coefficient of 45% is only limited by the ratio of the radiative decay rate to the linewidth of exciton transition and is independent of incident light intensity up to 400 Watts/cm 2 . We demonstrate that the reflectivity of the mirror can be drastically modified by applying a gate voltage that modifies the monolayer charge density. Our findings could find applications ranging from fast programmable spatial light modulators to suspended ultra-light mirrors for optomechanical devices.A plethora of ground-breaking experiments have established monolayers of transition metal dichalcogenides (TMD) such as MoSe 2 or WSe 2 as a new class of two dimensional (2D) direct 1

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“…For this phenomenon he coined the term superradiance and showed that the atom ensemble can behave as a large collective pseudospin. Superradiant emission has been observed in numerous physical systems [2][3][4][5][6][7][8][9][10]. These collective effects are particularly prominent when the coupling between the spin ensemble and the radiation field (g ffiffiffiffi N p for N spins individually coupled with strength g) is larger than any of the losses in the system (κ þ γ, where κ is the radiative loss rate and γ is the spin dephasing rate).…”

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confidence: 99%

Coherent Rabi Dynamics of a Superradiant Spin Ensemble in a Microwave Cavity

et al. 2017

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We achieve the strong-coupling regime between an ensemble of phosphorus donor spins in a highly enriched 28 Si crystal and a 3D dielectric resonator. Spins are polarized beyond Boltzmann equilibrium using spin-selective optical excitation of the no-phonon bound exciton transition resulting in N ¼ 3.6 × 10 13 unpaired spins in the ensemble. We observe a normal mode splitting of the spin-ensemble-cavity polariton resonances of 2g ffiffiffiffi N p ¼ 580 kHz (where each spin is coupled with strength g) in a cavity with a quality factor of 75 000 ( γ ≪ κ ≈ 60 kHz, where γ and κ are the spin dephasing and cavity loss rates, respectively). The spin ensemble has a long dephasing time (T Ã 2 ¼ 9 μs) providing a wide window for viewing the dynamics of the coupled spin-ensemble-cavity system. The free-induction decay shows up to a dozen collapses and revivals revealing a coherent exchange of excitations between the superradiant state of the spin ensemble and the cavity at the rate g ffiffiffiffi N p. The ensemble is found to evolve as a single large pseudospin according to the Tavis-Cummings model due to minimal inhomogeneous broadening and uniform spin-cavity coupling. We demonstrate independent control of the total spin and the initial Z projection of the psuedospin using optical excitation and microwave manipulation, respectively. We vary the microwave excitation power to rotate the pseudospin on the Bloch sphere and observe a long delay in the onset of the superradiant emission as the pseudospin approaches full inversion. This delay is accompanied by an abrupt π-phase shift in the peusdospin microwave emission. The scaling of this delay with the initial angle and the sudden phase shift are explained by the Tavis-Cummings model.

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Photon-Mediated Interactions Between Distant Artificial Atoms

Cited by 528 publications

References 30 publications

Bound states in the continuum

Bound states in the continuum

Realization of an Electrically Tunable Narrow-Bandwidth Atomically Thin Mirror Using MonolayerMoSe2

Coherent Rabi Dynamics of a Superradiant Spin Ensemble in a Microwave Cavity

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