Collective radiation from distant emitters

2021-02-12T10:07:54+01:00Tags: , , |

Authors: Sinha, Kanupriya; Gonzalez-Tudela, Alejandro; Lu, Yong; Solano, Pablo Contribution: Article Journal: PHYSICAL REVIEW A Publication date: 2020/10/29 DOI: 10.1103/PhysRevA.102.043718 Abstract: Waveguides allow for direct coupling of emitters separated by large distances, offering a path to connect remote quantum systems. However, when facing the distances needed for practical applications, retardation effects due to the finite speed [...]

Ag-5-induced stabilization of multiple surface polarons on perfect and reduced TiO2 rutile (110)

2021-02-12T10:07:54+01:00Tags: , , , |

Authors: Lopez-Caballero, P.; Miret-Artes, S.; Mitrushchenkov, A. O.; De Lara-Castells, M. P. Contribution: Article Journal: JOURNAL OF CHEMICAL PHYSICS Publication date: 2020/10/28 DOI: 10.1063/5.0029099 Abstract: The recent advent of cutting-edge experimental techniques allows for a precise synthesis of subnanometer metal clusters composed of just a few atoms, opening new possibilities for subnanometer science. In this work, [...]

Tentative detection of HC5NH+ in TMC-1

2021-02-12T10:07:54+01:00Tags: |

Authors: Marcelino, N.; Agundez, M.; Tercero, B.; Cabezas, C.; Bermudez, C.; Gallego, J. D.; deVicente, P.; Cernicharo, J. Contribution: Article Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2020/10/27 DOI: 10.1051/0004-6361/202039251 Abstract: Using the Yebes 40m radio telescope, we report the detection of a series of seven lines harmonically related with a rotational constant B-0 = 1295.81581 +/- [...]

Discovery of HC3O+ in space: The chemistry of O-bearing species in TMC-1

2021-02-12T10:07:56+01:00Tags: |

Authors: Cernicharo, J.; Marcelino, N.; Agundez, M.; Endo, Y.; Cabezas, C.; Bermudez, C.; Tercero, B.; de Vicente, P. Contribution: Article Journal: ASTRONOMY & ASTROPHYSICS Publication date: 2020/10/23 DOI: 10.1051/0004-6361/202039351 Abstract: Using the Yebes 40m and IRAM 30m radio telescopes, we detected a series of harmonically related lines with a rotational constant B-0 = 4460.590 +/- 0.001 [...]

Semana de la Ciencia 2020

2020-11-05T14:21:57+01:00Tags: |

Dada la situación de pandemia, este año, durante la Semana de la Ciencia, el Instituto de Física Fundamental (IFF) del CSIC ofrecerá una serie de charlas online desde su página de youtube. Estas actividades están dirigidas tanto al público general, como a jóvenes estudiantes, ávidos de conocimiento científico. MARTES 10 DE NOVIEMBRE 17:00-18:00 - Charla: [...]

Quantum Control of Frequency-Tunable Transmon Superconducting Qubits

2021-02-12T10:07:56+01:00Tags: , |

Authors: Garcia-Ripoll, J. J.; Ruiz-Chamorro, A.; Torrontegui, E. Contribution: Article Journal: PHYSICAL REVIEW APPLIED Publication date: 2020/10/20 DOI: 10.1103/PhysRevApplied.14.044035 Abstract: In this work we analyze the implementation of a control-phase gate through the resonance between the vertical bar 11 > and vertical bar 20 > states of two statically coupled transmons. We find that there are [...]

Subnanometer engineering: from clean catalysts and photocatalysts to new 2D polaronic materials

2020-11-04T10:20:16+01:00Tags: , , , , |

The AbinitSim Unit (IFF-CSIC) is conducting a research to uncover the special properties of the subnanometer-sized metal clusters, a new generation of catalysts and photocatalysts. In the latest work, it is shown how the decoration of perfect and reduced TiO2 surfaces with Ag5 atomic quantum clusters enables the stabilization of multiple surface polarons and then [...]

Quantum simulation of two-dimensional quantum chemistry in optical lattices

2020-10-16T20:20:00+02:00Tags: , |

Authors: Arguello-Luengo, Javier; Gonzalez-Tudela, Alejandro; Shi, Tao; Zoller, Peter; Cirac, J. Ignacio Contribution: Article Journal: PHYSICAL REVIEW RESEARCH Publication date: 2020/10/16 DOI: 10.1103/PhysRevResearch.2.042013 Abstract: Benchmarking numerical methods in quantum chemistry is one of the key opportunities that quantum simulators can offer. Here, we propose an analog simulator for discrete two-dimensional quantum chemistry models based on cold [...]

Tunable and Robust Long-Range Coherent Interactions between Quantum Emitters Mediated by Weyl Bound States

2021-02-12T10:07:56+01:00Tags: , |

Authors: Garcia-Elcano, Inaki; Gonzalez-Tudela, Alejandro; Bravo-Abad, Jorge Contribution: Article Journal: PHYSICAL REVIEW LETTERS Publication date: 2020/10/14 DOI: 10.1103/PhysRevLett.125.163602 Abstract: Long-range coherent interactions between quantum emitters are instrumental for quantum information and simulation technologies, but they are generally difficult to isolate from dissipation. Here, we show how such interactions can be obtained in photonic Weyl environments due [...]

Ultra-fast two-qubit ion gate using sequences of resonant pulses

2021-02-12T10:07:57+01:00Tags: , |

Authors: Torrontegui, E.; Heinrich, D.; Hussain, M., I; Blatt, R.; Garcia-Ripoll, J. J. Contribution: Article Journal: NEW JOURNAL OF PHYSICS Publication date: 2020/10/12 DOI: 10.1088/1367-2630/abbab6 Abstract: We propose a new protocol to implement ultra-fast two-qubit phase gates with trapped ions using spin-dependent kicks induced by resonant transitions. By only optimizing the allocation of the arrival times [...]

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