2020
DOI: 10.1038/s41467-020-19030-2
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Large array of Schrödinger cat states facilitated by an optical waveguide

Abstract: Quantum engineering using photonic structures offer new capabilities for atom-photon interactions for quantum optics and atomic physics, which could eventually lead to integrated quantum devices. Despite the rapid progress in the variety of structures, coherent excitation of the motional states of atoms in a photonic waveguide using guided modes has yet to be demonstrated. Here, we use the waveguide mode of a hollow-core photonic crystal fibre to manipulate the mechanical Fock states of single atoms in a harmo… Show more

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Cited by 26 publications
(15 citation statements)
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“…In contrast to quantum simulation with ions [31,32], we can even turn off the interactions between arbitrary pairs of particles. In the second part, we describe the oscillator states as qubits and use this approach to design quantum gates [33,34] or produce entangled states [35][36][37].…”
Section: Introductionmentioning
confidence: 99%
“…In contrast to quantum simulation with ions [31,32], we can even turn off the interactions between arbitrary pairs of particles. In the second part, we describe the oscillator states as qubits and use this approach to design quantum gates [33,34] or produce entangled states [35][36][37].…”
Section: Introductionmentioning
confidence: 99%
“…There have plenty of research works studied various quantum states and proposed the schemes for generating them. The particular interests has been devoted to Fock states [7][8][9], Schrodinger cat states [10][11][12][13][14][15][16][17][18] , squeezed states [19], photon number states [20][21][22][23][24][25][26], binomial states [27][28][29][30], and squeezed state excitations [31][32][33][34]. Another interesting class of nonclassical states such as photonadded coherent states [35], photon-subtracted or -added squeezed states [36] that have been a subject of interest since they also have potential applications in many related quantum information processing [37][38][39][40].…”
Section: Introductionmentioning
confidence: 99%
“…In this Letter, we experimentally demonstrate a method for the spectrally resolved sensing of harmonic oscillator frequency fluctuations that is based on the interference of cat states [18]. The deterministic generation of oscillator cat states has been demonstrated in a variety of systems [19][20][21][22][23], and interference of the oscillator wave packets has previously been applied to single photon detection [24]. Here, we apply a continuously driven qubit-state-dependent displacement to the motional wave packet of a single trapped ion, while inverting the drive phase at regular intervals to tune the protocol's peak sensitivity in frequency space.…”
mentioning
confidence: 96%