On-chip quantum simulation with superconducting circuits

Houck, Andrew; Türeci, Hakan E.; Koch, Jens

doi:10.1038/nphys2251

Cited by 1,019 publications

(1,210 citation statements)

References 98 publications

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“…Finally, the recent progress in the field of nanomechanical oscillators makes possible the study of frequency jumps in nanomechanical resonators 16 , which is predicted to be accompanied by squeezing 31 . Our work paves the way for further simulations of quantum coherence phenomena using superconducting quantum circuits 32,33 .…”

Section: Discussionmentioning

confidence: 88%

Motional averaging in a superconducting qubit

et al. 2013

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Superconducting circuits with Josephson junctions are promising candidates for developing future quantum technologies. Of particular interest is to use these circuits to study effects that typically occur in complex condensed-matter systems. Here we employ a superconducting quantum bit-a transmon-to perform an analogue simulation of motional averaging, a phenomenon initially observed in nuclear magnetic resonance spectroscopy. By modulating the flux bias of a transmon with controllable pseudo-random telegraph noise we create a stochastic jump of its energy level separation between two discrete values. When the jumping is faster than a dynamical threshold set by the frequency displacement of the levels, the initially separate spectral lines merge into a single, narrow, motional-averaged line. With sinusoidal modulation a complex pattern of additional sidebands is observed. We show that the modulated system remains quantum coherent, with modified transition frequencies, Rabi couplings, and dephasing rates. These results represent the first steps towards more advanced quantum simulations using artificial atoms.

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Section: Discussionmentioning

confidence: 88%

Motional averaging in a superconducting qubit

et al. 2013

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“…Lattices of superconducting circuits [110] may also offer further opportunities to study strongly correlated phases of light in honeycomb structures. Fully tunable plasmonic analogues of graphene can be realized in two-dimensional honeycomb lattices of metallic nanoparticles [111].…”

Section: Summary and Perspectivesmentioning

confidence: 99%

Artificial honeycomb lattices for electrons, atoms and photons

et al. 2013

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Artificial honeycomb lattices offer a tunable platform to study massless Dirac quasiparticles and their topological and correlated phases. Here we review recent progress in the design and fabrication of such synthetic structures focusing on nanopatterning of two-dimensional electron gases in semiconductors, molecule-by-molecule assembly by scanning probe methods, and optical trapping of ultracold atoms in crystals of light. We also discuss photonic crystals with Dirac cone dispersion and topologically protected edge states. We emphasize how the interplay between single-particle band structure engineering and cooperative effects leads to spectacular manifestations in tunneling and optical spectroscopies.

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“…With an eye toward achieving a scalable quantum computer [1] and more recently a photonic quantum simulator [2][3][4] significant progress has been achieved in optical cQED as well as its microwave counterpart circuit QED. One such cQED system consisting of a single quantum dot (QD) coupled to a photonic crystal (PC) cavity has recently emerged as an attractive candidate for integrated nanophotonic quantum information processing devices [5].…”

Section: Introductionmentioning

confidence: 99%

Cavity quantum electrodynamics with a single quantum dot coupled to a photonic molecule

et al. 2012

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We demonstrate the effects of cavity quantum electrodynamics for a quantum dot coupled to a photonic molecule consisting of a pair of coupled photonic crystal cavities. We show anti-crossing between the quantum dot and the two super-modes of the photonic molecule, signifying achievement of the strong coupling regime. From the anti-crossing data, we estimate the contributions of both mode-coupling and intrinsic detuning to the total detuning between the super-modes. Finally, we also show signatures of off-resonant cavity-cavity interaction in the photonic molecule.

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On-chip quantum simulation with superconducting circuits

Cited by 1,019 publications

References 98 publications

Motional averaging in a superconducting qubit

Motional averaging in a superconducting qubit

Artificial honeycomb lattices for electrons, atoms and photons

Cavity quantum electrodynamics with a single quantum dot coupled to a photonic molecule

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