Experimental Reconstruction of the Few-Photon Nonlinear Scattering Matrix from a Single Quantum Dot in a Nanophotonic Waveguide

2021-10-27T10:46:59+02:00Tags: , |

Authors: Le Jeannic, Hanna; Ramos, Tomas; Simonsen, Signe F.; Pregnolato, Tommaso; Liu, Zhe; Schott, Ruediger; Wieck, Andreas D.; Ludwig, Arne; Rotenberg, Nir; Garcia-Ripoll, Juan Jose; Lodahl, Peter Journal: PHYSICAL REVIEW LETTERS Publication date: 2021/01/13 DOI: 10.1103/PhysRevLett.126.023603 Abstract: Coherent photon-emitter interfaces offer a way to mediate efficient nonlinear photon-photon interactions, much needed for quantum information processing. [...]

Quantum Electrodynamics in a Topological Waveguide

2021-10-27T10:46:58+02:00Tags: , |

Authors: Kim, Eunjong; Zhang, Xueyue; Ferreira, Vinicius S.; Banker, Jash; Iverson, Joseph K.; Sipahigil, Alp; Bello, Miguel; Gonzalez-Tudela, Alejandro; Mirhosseini, Mohammad; Painter, Oskar Journal: PHYSICAL REVIEW X Publication date: 2021/01/25 DOI: 10.1103/PhysRevX.11.011015 Abstract: While designing the energy-momentum relation of photons is key to many linear, nonlinear, and quantum optical phenomena, a new set of light-matter [...]

Dissipative Josephson effect in coupled nanolasers

2021-10-27T10:46:55+02:00Tags: , |

Authors: Fernandez-Lorenzo, Samuel; Porras, Diego Journal: NEW JOURNAL OF PHYSICS Publication date: 2021/03/01 DOI: 10.1088/1367-2630/abe811 Abstract: Josephson effects are commonly studied in quantum systems in which dissipation or noise can be neglected or do not play a crucial role. In contrast, here we discuss a setup where dissipative interactions do amplify a photonic Josephson current, [...]

Ultraviolet Laser Pulses with Multigigahertz Repetition Rate and Multiwatt Average Power for Fast Trapped-Ion Entanglement Operations

2021-10-27T10:46:55+02:00Tags: , |

Authors: Hussain, M., I; Heinrich, D.; Guevara-Bertsch, M.; Torrontegui, E.; Garcia-Ripoll, J. J.; Roos, C. F.; Blatt, R. Journal: PHYSICAL REVIEW APPLIED Publication date: 2021/02/23 DOI: 10.1103/PhysRevApplied.15.024054 Abstract: The conventional approach to perform two-qubit gate operations in trapped ions relies on exciting the ions on motional sidebands with laser light, which is an inherently slow [...]

Remote Individual Addressing of Quantum Emitters with Chirped Pulses

2021-10-27T10:46:54+02:00Tags: , |

Authors: Casulleras, S.; Gonzalez-Ballestero, C.; Maurer, P.; Garcia-Ripoll, J. J.; Romero-Isart, O. Journal: PHYSICAL REVIEW LETTERS Publication date: 2021/03/09 DOI: 10.1103/PhysRevLett.126.103602 Abstract: We propose to use chirped pulses propagating near a band gap to remotely address quantum emitters. We introduce a particular family of chirped pulses that dynamically self-compress to subwavelength spot sizes during their [...]

Work statistics and symmetry breaking in an excited-state quantum phase transition

2021-10-27T10:46:50+02:00Tags: , , |

Authors: Mzaouali, Zakaria; Puebla, Ricardo; Goold, John; El Baz, Morad; Campbell, Steve Journal: PHYSICAL REVIEW E Publication date: 2021/03/25 DOI: 10.1103/PhysRevE.103.032145 Abstract: We examine how the presence of an excited-state quantum phase transition manifests in the dynamics of a many-body system subject to a sudden quench. Focusing on the Lipkin-Meshkov-Glick model initialized in the ground [...]

Generation of photonic matrix product states with Rydberg atomic arrays

2021-10-27T10:46:49+02:00Tags: , |

Authors: Wei, Zhi-Yuan; Malz, Daniel; Gonzalez-Tudela, Alejandro; Cirac, J. Ignacio Journal: PHYSICAL REVIEW RESEARCH Publication date: 2021/04/07 DOI: 10.1103/PhysRevResearch.3.023021 Abstract: We show how one can deterministically generate photonic matrix product states with high bond and physical dimensions with an atomic array if one has access to a Rydberg-blockade mechanism. We develop both a quantum gate [...]

Constant amplitude driving of a radio frequency excited plasmonic tunnel junction

2021-10-27T10:46:46+02:00Tags: , |

Authors: Dolezal, Jiri; Merino, Pablo; Svec, Martin Journal: APPLIED PHYSICS LETTERS Publication date: 2021/05/10 DOI: 10.1063/5.0048476 Abstract: Constant amplitude bias modulation over a broad range of microwave frequencies is a prerequisite for application in high-resolution spectroscopic techniques in a tunnel junction, e.g., electron spin resonance spectroscopy or optically detected paramagnetic resonance. Here, we present an [...]

Electron impact ionization of R-carvone: III. Absolute total ionization cross sections

2021-10-27T10:46:45+02:00Tags: , , |

Authors: Amorim, R. A. A.; Pires, W. A. D.; Fernandes, A. C. P.; Casagrande, T. M.; Jones, D. B.; Blanco, F.; Garcia, G.; Brunger, M. J.; Lopes, M. C. A. Journal: INTERNATIONAL JOURNAL OF MASS SPECTROMETRY Publication date: 2021/06/01 DOI: 10.1016/j.ijms.2021.116556 Abstract: We report results from a joint experimental and theoretical investigation for the electron [...]

A perspective on scaling up quantum computation with molecular spins

2021-10-27T10:46:42+02:00Tags: , |

Authors: Carretta, S.; Zueco, D.; Chiesa, A.; Gomez-Leon, A.; Luis, F. Journal: APPLIED PHYSICS LETTERS Publication date: 2021/06/14 DOI: 10.1063/5.0053378 Abstract: Artificial magnetic molecules can contribute to progressing toward large scale quantum computation by (a) integrating multiple quantum resources and (b) reducing the computational costs of some applications. Chemical design, guided by theoretical proposals, allows [...]

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