Scintillation light detection in the 6-m drift-length ProtoDUNE Dual Phase liquid argon TPC

2022-07-16T20:22:00+02:00Tags: , |

Authors: Abud, A. Abed; Abi, B.; Acciarri, R.; Acero, M. A.; Adames, M. R.; Adamov, G.; Adamowski, M.; Adams, D.; Adinolfi, M.; Aduszkiewicz, A.; Aguilar, J.; Ahmad, Z.; Ahmed, J.; Aimard, B.; Ali-Mohammadzadeh, B.; Alion, T.; Allison, K.; Monsalve, S. Alonso; AlRashed, M.; Alt, C.; Alton, A.; Alvarez, R.; Amedo, P.; Anderson, J.; Andreopoulos, C.; [...]

Theoretical priors in scalar-tensor cosmologies: Shift-symmetric Horndeski models

2022-04-05T17:40:55+02:00Tags: , |

Authors: Traykova, Dina; Bellini, Emilio; Ferreira, Pedro G.; Garcia-Garcia, Carlos; Noller, Johannes; Zumalacarregui, Miguel Journal: PHYSICAL REVIEW D Publication date: 2021/10/01 DOI: 10.1103/PhysRevD.104.083502 Abstract: Attempts at constraining theories of late time accelerated expansion often assume broad priors for the parameters in their phenomenological description. Focusing on shift-symmetric scalar-tensor theories with standard gravitational wave speed, we [...]

Cosmic shear power spectra in practice

2022-04-04T17:53:00+02:00Tags: , |

Authors: Nicola, Andrina; Garcia-Garcia, Carlos; Alonso, David; Dunkley, Jo; Ferreira, Pedro G.; Slosar, Anze; Spergel, David N. Journal: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS Publication date: 2021/03/01 DOI: 10.1088/1475-7516/2021/03/067 Abstract: Cosmic shear is one of the most powerful probes of Dark Energy, targeted by several current and future galaxy surveys. Lensing shear, however, is only [...]

The growth of density perturbations in the last similar to 10 billion years from tomographic large-scale structure data

2021-10-01T20:21:00+02:00Tags: , |

Authors: Garcia-Garcia, Carlos; Ruiz-Zapatero, Jaime; Alonso, David; Bellini, Emilio; Ferreira, Pedro G.; Mueller, Eva-Maria; Nicola, Andrina; Ruiz-Lapuente, Pilar Journal: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS Publication date: 2021/10/01 DOI: 10.1088/1475-7516/2021/10/030 Abstract: In order to investigate the origin of the ongoing tension between the amplitude of matter fluctuations measured by weak lensing experiments at low redshifts [...]

Cosmic shear power spectra in practice

2021-03-01T20:21:00+01:00Tags: , |

Authors: Nicola, Andrina; Garcia-Garcia, Carlos; Alonso, David; Dunkley, Jo; Ferreira, Pedro G.; Slosar, Anze; Spergel, David N. Journal: JOURNAL OF COSMOLOGY AND ASTROPARTICLE PHYSICS Publication date: 2021/03/01 DOI: 10.1088/1475-7516/2021/03/067 Abstract: Cosmic shear is one of the most powerful probes of Dark Energy, targeted by several current and future galaxy surveys. Lensing shear, however, is only [...]

Closed timelike curves and chronology protection in quantum and classical simulators

2021-02-12T10:08:13+01:00Tags: , , |

Authors: Martin-Vazquez, Gonzalo; Sabin, Carlos Contribution: Article Journal: CLASSICAL AND QUANTUM GRAVITY Publication date: 2020/02/20 DOI: 10.1088/1361-6382/ab5f3f Abstract: In principe, general relativity seems to allow the existence of closed timelike curves (CTC). However, when quantum effects are considered, it is likely that their existence is prevented by some kind of chronological protection mechanism, as Hawking conjectured. [...]

Theoretical priors in scalar-tensor cosmologies: Thawing quintessence

2021-02-12T10:08:12+01:00Tags: , |

Authors: Garcia-Garcia, Carlos; Bellini, Emilio; Ferreira, Pedro G.; Traykova, Dina; Zumalacarregui, Miguel Contribution: Article Journal: PHYSICAL REVIEW D Publication date: 2020/03/05 DOI: 10.1103/PhysRevD.101.063508 Abstract: The late time acceleration of the Universe can be characterized in terms of an extra, time-dependent, component of the Universe-dark energy. The simplest proposal for dark energy is a scalar-tensor theory-quintessence-which consists [...]

Entangling Superconducting Qubits through an Analogue Wormhole

2021-02-12T10:07:58+01:00Tags: , |

Authors: Sabin, Carlos Contribution: Article Journal: UNIVERSE Publication date: 2020/09/09 DOI: 10.3390/universe6090149 Abstract: We propose an experimental setup to test the effect of curved spacetime upon the extraction of entanglement from the quantum field vacuum to a pair of two-level systems. We consider two superconducting qubits coupled to a dc-SQUID array embedded into an open microwave [...]

Quantum dissipation of planar harmonic systems: Maxwell-Chern-Simons theory

2020-01-16T12:54:29+01:00Tags: , |

Authors: Valido, Antonio A. Contribution: Article Journal: PHYSICAL REVIEW D Publication date: 2019/01/03 DOI: 10.1103/PhysRevD.99.016003 Abstract: Conventional Brownian motion in harmonic systems has provided a deep understanding of a great diversity of dissipative phenomena. We address a rather fundamental microscopic description for the (linear) dissipative dynamics of two-dimensional harmonic oscillators that contains the conventional Brownian motion [...]

Dirac equation in exotic spacetimes

2020-01-16T12:54:28+01:00Tags: , |

Authors: Faba Garcia, Javier; Sabin, Carlos Contribution: Article Journal: PHYSICAL REVIEW D Publication date: 2019/01/14 DOI: 10.1103/PhysRevD.99.025008 Abstract: We find solutions of the Dirac equation in curved spacetime. In particular, we consider 1 + 1 dimensional sections of several exotic metrics: the Alcubierre metric, which describes a scenario that allows faster-than-light velocity; the Godel metric, which [...]

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