Publisher’s Note: Single-Photon Optomechanics [Phys. Rev. Lett.<b>107</b>, 063602 (2011)]

Nunnenkamp, Andreas; Børkje, Kjetil; Girvin, S. M.

doi:10.1103/physrevlett.107.099901

Cited by 150 publications

(253 citation statements)

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“…which makes the system's evolution still analytically solvable, as also recognized by Rabl [11] and Nunnenkamp et al [12]. Since the initial state of our system consists of one single photon, there can only be one photon throughout the entire evolution.…”

Section: B Structure Of the Hilbert Spacementioning

confidence: 72%

“…This device, driven by a single photon, was proposed by Marshall et al [8,9] as an experiment to search for Penrose's conjecture of gravity decoherence [10]. Such single-photon driven devices have also been more recently studied by Rabl [11] and Nunnenkamp et al [12]. By taking advantage of the conserved quantity-the total number of photons in the system-one can obtain exact solutions to this system's quantum dynamics.…”

Section: Introductionmentioning

confidence: 99%

“…Note that unlike Refs. [11,12], our state preparation procedure is conditional. This guarantees a pure quantum state for the mechanical oscillator, but requires a low decoherence rate and a high detection quantum efficiency for the out-going photon.…”

Section: Conditional Quantum-state Preparationmentioning

confidence: 99%

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Open quantum dynamics of single-photon optomechanical devices

et al. 2013

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We study the quantum dynamics of a Michelson interferometer with Fabry-Perot cavity arms and one movable end mirror, and driven by a single photon-an optomechanical device previously studied by Marshall et al. as a device that searches for gravity decoherence. We obtain an exact analytical solution for the system's quantum mechanical equations of motion, including details about the exchange of the single photon between the cavity mode and the external continuum. The resulting time evolution of the interferometer's fringe visibility displays interesting new features when the incoming photon's frequency uncertainty is narrower or comparable to the cavity's line width-only in the limiting case of much broader-band photon does the result return to that of Marshall et al., but in this case the photon is not very likely to enter the cavity and interact with the mirror, making the experiment less efficient and more susceptible to imperfections. In addition, we show that in the strong-coupling regime, by engineering the incoming photon's wave function, it is possible to prepare the movable mirror into an arbitrary quantum state of a multidimensional Hilbert space.

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Section: B Structure Of the Hilbert Spacementioning

confidence: 72%

Section: Introductionmentioning

confidence: 99%

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Open quantum dynamics of single-photon optomechanical devices

et al. 2013

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“…In particular, the granularity parameter defined as the ratio g/κ is of the order of 10 −2 -such values have so far only been registered in experiments with ultracold atoms. 24,70 The theoretical analysis of the regime where the coupling parameter g and cavity width κ are similar 71,72 shows the breakdown of this linearization. To relate this result to our work, in Fig.…”

Section: Linearization Proceduresmentioning

confidence: 96%

Quantum Mechanical Description of Raman Scattering from Molecules in Plasmonic Cavities

et al. 2016

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Plasmon-enhanced Raman scattering can push single-molecule vibrational spectroscopy beyond a regime addressable by classical electrodynamics. We employ a quantum electrodynamics (QED) description of the coherent interaction of plasmons and molecular vibrations that reveal the emergence of nonlinearities in the inelastic response of the system. For realistic situations, we predict the onset of phonon-stimulated Raman scattering and a counterintuitive dependence of the anti-Stokes emission on the frequency of excitation. We further show that this QED framework opens a venue to analyze the correlations of photons emitted from a plasmonic cavity.Surface Enhanced Raman Scattering (SERS) is a spectroscopic technique in which the inelastic scattering from a molecule is increased by placing it in a hotspot of a plasmonic cavity, where the electric fields associated with the incident and the scattered photons are strongly enhanced (see the schematic in Fig. 1(a)). 1 The difference between the energy of those two photons provides a fingerprint of the molecule, i.e., detailed chemical information about its vibrational structure. Since the initial observation of Raman scattering from single molecules, 2,3 the use of a variety of plasmonic structures that act as effective optical nanoantennas over the last decades has allowed a tremendous advance of this molecular spectroscopy 4 . Metallic particles such as nanoshells 5,6 , nanorings 7 , nanorods 8 , nanowires 9 , or nano stars 10 , as well as plasmonic nanogap structures formed in particle dimers [11][12][13] , nanoparticle-on-a-mirror morphologies [14][15][16][17] , or nanoclusters 18 , are among the variety of structures that offer huge and controllable enhancements of the field intensity in their hotspots, boosting the inherently weak Raman scattering intensity, 1,19 and ultimately enabling the chemical identification and imaging of particular vibrational modes of a molecule with subnanometer resolution. 20 These results suggest that some experiments might have reached the regime where the quantum-mechanical nature of both the molecular vibrations and the plasmonic cavity emerges, 21 and call for an adequate theoretical description that goes beyond the classical treatment of the electric fields produced in plasmonic cavities. 1,22,23 In this work we address the underlying quantummechanical nature of Raman scattering processes by quantizing as bosonic excitations both the vibrations of the molecule and the electromagnetic field of a plasmonic cavity. The description of the vibrations through bosonic operators can be justified by considering the harmonic approximation to the energy landscape of the molecule along a generalized atomic coordinate ( Fig. 1(b)), such as the length of a molecular bond, e.g., C=O. 21,22 These vibrations interact with the cavity photons through a nonlinear Hamiltonian, reminiscent of that found in optomechanical systems. 24 In this description, the large enhancement of the Raman scattering from a molecule in the plasmonic cavity occurs thanks to ...

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“…Examples of currently existing and recently proposed single photon emitters contain a large number of various nonlinear systems, spanning from cavity quantum electrodynamic (cQED) systems with a single atom [8,9] or a quantum dot (QD) [10,11], photonic blockade by Rydberg atoms [12,13], to four-level atomic systems [14], quantum optomechanical setups [15,16], confined cavity polaritons [17], and others [18,19,20,21]. Many of them depend on the strength of optical nonlinearity U, accounting for the fact that large nonlinearity makes the photon energy spectrum nonequidistant, with consequent suppression of two photon state occupation.…”

Section: Introductionmentioning

confidence: 99%

Tunable single-photon emission from dipolaritons

2014

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Abstract. We study a system comprising of a double quantum well embedded in a micropillar optical cavity, where strong coupling between a direct exciton, indirect exciton, and cavity photon is achieved. We show that the resulting hybrid quasiparticles -dipolaritons -can induce strong photon correlations and lead to anti-bunched behaviour of the cavity output field. The origin of the observed single photon emission is attributed to unconventional photon blockade. Moreover, we find that the second-order equal time correlation function g (2) (0) can be tuned over a large range using an electric field applied to the structure, or changing the frequency of the pump. This allows for an on-the-flight control of cavity output properties, and is important for the future generation of tunable single photon emission sources.

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Publisher’s Note: Single-Photon Optomechanics [Phys. Rev. Lett.107, 063602 (2011)]

Cited by 150 publications

References 0 publications

Open quantum dynamics of single-photon optomechanical devices

Open quantum dynamics of single-photon optomechanical devices

Quantum Mechanical Description of Raman Scattering from Molecules in Plasmonic Cavities

Tunable single-photon emission from dipolaritons

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