Harnessing nonadiabatic excitations promoted by a quantum critical point: Quantum battery and spin squeezing

2022-09-19T17:23:42+02:00Tags: , |

Authors: Abah, O.; De Chiara, G.; Paternostro, M.; Puebla, R. Journal: PHYSICAL REVIEW RESEARCH Publication date: 2022/04/22 DOI: 10.1103/PhysRevResearch.4.L022017 Abstract: Crossing a quantum critical point in finite time challenges the adiabatic condition due to the closing of the energy gap, which ultimately results in the formation of excitations. Such nonadiabatic excitations are typically deemed detrimental [...]

A Benchmark Protocol for DFT Approaches and Data-Driven Models for Halide-Water Clusters

2022-09-19T15:57:16+02:00Tags: , |

Authors: Rodriguez-Segundo, Raul; Arismendi-Arrieta, Daniel J.; Prosmiti, Rita Journal: MOLECULES Publication date: 2022/03/01 DOI: 10.3390/molecules27051654 Abstract: Dissolved ions in aqueous media are ubiquitous in many physicochemical processes, with a direct impact on research fields, such as chemistry, climate, biology, and industry. Ions play a crucial role in the structure of the surrounding network of water [...]

Absolute Differential Cross-Sections for Elastic Electron Scattering from Sevoflurane Molecule in the Energy Range from 50-300 eV

2022-09-19T15:57:16+02:00Tags: , |

Authors: Vukalovic, Jelena; Maljkovic, Jelena B.; Blanco, Francisco; Garcia, Gustavo; Predojevic, Branko; Marinkovic, Bratislav P. Journal: INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES Publication date: 2022/01/01 DOI: 10.3390/ijms23010021 Abstract: We report the results of the measurements and calculations of the absolute differential elastic electron scattering cross-sections (DCSs) from sevoflurane molecule (C4H3F7O). The experimental absolute DCSs for elastic [...]

Benchmarking quantum annealing dynamics: The spin-vector Langevin model

2022-09-19T15:57:16+02:00Tags: , |

Authors: Subires, David; Gomez-Ruiz, Fernando J.; Ruiz-Garcia, Antonia; Alonso, Daniel; del Campo, Adolfo Journal: PHYSICAL REVIEW RESEARCH Publication date: 2022/05/09 DOI: 10.1103/PhysRevResearch.4.023104 Abstract: The classical spin-vector Monte Carlo (SVMC) model is a reference benchmark for the performance of a quantum annealer. Yet, as a Monte Carlo method, SVMC is unsuited for an accurate description of [...]

On some unexplored decoherence aspects in the Caldeira-Leggett formalism: arrival time distributions, identical particles and diffraction in time

2022-09-19T15:57:15+02:00Tags: , |

Authors: Mousavi, S., V; Miret-Artes, S. Journal: EUROPEAN PHYSICAL JOURNAL PLUS Publication date: 2022/01/19 DOI: 10.1140/epjp/s13360-022-02367-6 Abstract: Some unexplored decoherence aspects within the Caldeira-Leggett master equation are analyzed and discussed. The decoherence process is controlled by the two environment parameters, the relaxation rate or friction and the temperature, leading to a gradual transition from the [...]

Connecting steady-states of driven-dissipative photonic lattices with spontaneous collective emission phenomena

2022-09-19T15:57:14+02:00Tags: , |

Authors: Gonzalez-Tudela, Alejandro Journal: NEW JOURNAL OF PHYSICS Publication date: 2022/04/01 DOI: 10.1088/1367-2630/ac58b7 Abstract: Recent experimental advances enable the fabrication of photonic lattices in which the light propagates with engineered energy dispersions. When interfaced with quantum emitters, such systems yield strong collective spontaneous emission phenomena, such as perfect sub-radiance, in which the decay into the [...]

Total Electron Detachment and Induced Cationic Fragmentation Cross Sections for Superoxide Anion (O-2(-)) Collisions with Benzene (C6H6) Molecules

2022-09-19T15:57:14+02:00Tags: , |

Authors: Guerra, Carlos; Kumar, Sarvesh; Aguilar-Galindo, Fernando; Diaz-Tendero, Sergio; Lozano, Ana I.; Mendes, Monica; Oller, Juan C.; Limao-Vieira, Paulo; Garcia, Gustavo Journal: INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES Publication date: 2022/02/01 DOI: 10.3390/ijms23031266 Abstract: In this study, novel experimental total electron detachment cross sections for O-2(-) collisions with benzene molecules are reported for the impact energy [...]

Critical quantum metrology with fully-connected models: from Heisenberg to Kibble-Zurek scaling

2022-09-19T15:57:11+02:00Tags: , |

Authors: Garbe, Louis; Abah, Obinna; Felicetti, Simone; Puebla, Ricardo Journal: QUANTUM SCIENCE AND TECHNOLOGY Publication date: 2022/06/15 DOI: 10.1088/2058-9565/ac6ca5 Abstract: Phase transitions represent a compelling tool for classical and quantum sensing applications. It has been demonstrated that quantum sensors can in principle saturate the Heisenberg scaling, the ultimate precision bound allowed by quantum mechanics, in [...]

Tunable Directional Emission and Collective Dissipation with Quantum Metasurfaces

2022-09-19T15:57:10+02:00Tags: , |

Authors: Fernandez-Fernandez, D.; Gonzalez-Tudela, A. Journal: PHYSICAL REVIEW LETTERS Publication date: 2022/03/14 DOI: 10.1103/PhysRevLett.128.113601 Abstract: Subwavelength atomic arrays, recently labeled as quantum metamaterials, have emerged as an exciting platform for obtaining novel quantum optical phenomena. The strong interference effects in these systems generate subradiant excitations that propagate through the atomic array with very long lifetimes. [...]

Phase Diagram of 1+1D Abelian-Higgs Model and Its Critical Point

2022-09-19T15:57:10+02:00Tags: , |

Authors: Chanda, Titas; Lewenstein, Maciej; Zakrzewski, Jakub; Tagliacozzo, Luca Journal: PHYSICAL REVIEW LETTERS Publication date: 2022/02/28 DOI: 10.1103/PhysRevLett.128.090601 Abstract: We determine the phase diagram of the Abelian-Higgs model in one spatial dimension and time (1 + 1D) on a lattice. We identify a line of first order phase transitions separating the Higgs region from the [...]

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