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Pre-Inflation From The Multiverse: Can It Solve The Quadrupole Problem In The Cosmic Microwave Background?
(Springer, 2018-03-21)
We analyze a quantized toy model of a universe undergoing eternal inflation using a quantum-field-theoretical formulation of the Wheeler-DeWitt equation. This so-called third quantization method leads to the picture that ...
Quantum work statistics, Loschmidt echo and information scrambling
(Nature Publishing, 2018-08-22)
A universal relation is established between the quantum work probability distribution of an isolated driven quantum system and the Loschmidt echo dynamics of a two-mode squeezed state. When the initial density matrix is ...
Phantom dark ghost in Einstein–Cartan gravity
(Springer, 2017-05-03)
A class of dynamical dark energy models is constructed through an extended version of fermion fields corresponding to phantom dark ghost spinors, which are spin 1/2 with mass dimension 1. We find that if these spinors ...
Vacuum state of the Dirac field in de Sitter space and entanglement entropy
(Springer, 2017-03-13)
We compute the entanglement entropy of a free massive Dirac field between two causally disconnected open charts in de Sitter space. We first derive the Bunch-Davies vacuum mode functions of the Dirac field. We find there ...
Anisotropic Inflation With Derivative Couplings
(American Physical Society, 2018-05-29)
We study anisotropic power-law inflationary solutions when the inflaton and its derivative couple to a vector field. This type of coupling is motivated by D-brane inflationary models, in which the inflaton, and a vector ...
The Avoidance of the Little Sibling of the Big Rip Abrupt Event by a Quantum Approach
(MDPI, 2018-03)
We address the quantisation of a model that induces the Little Sibling of the Big Rip (LSBR) abrupt event, where the dark energy content is described by means of a phantom-like fluid or a phantom scalar field. The quantisation ...
More on the holographic Ricci dark energy model: smoothing Rips through interaction effects?
(Springer, 2018-04-23)
The background cosmological dynamics of the late Universe is analysed on the framework of a dark energy model described by an holographic Ricci dark energy component. Several kind of interactions between the dark energy ...
Measurements of Isospin Asymmetry and Difference of Direct CP Asymmetries in Inclusive B→Xsγ Decays
(American Physical Society, 2019-02-20)
We report measurements of isospin asymmetry Delta(0-) and difference of direct CP asymmetries Delta A(CP) between charged and neutral B -> X-s gamma decays. This analysis is based on the data sample containing 772 x 10(6)B ...
Measurements of Branching Fraction and Direct CP Asymmetry in B-+/- -> (KSKSK +/-)-K-0-K-0 and a Search for B-+/- -> (KSKS0)-K-0 pi(+/-)
(American Physical Society, 2019-02-20)
We study charmless hadronic decays of charged B mesons to the final states (KSKSK +/-)-K-0-K-0 and (KSKS0)-K-0 pi(+/-) using a 711 fb(-1) data sample that contains 772 x 10(6) B (B) over bar pairs and was collected at the ...
First Measurements of Absolute Branching Fractions of the Xi(0)(c) Baryon at Belle
(American Physical Society, 2019-02-25)
We present the first measurements of absolute branching fractions of Xi(0)(c) decays into Xi(-)pi(+), Lambda K-pi(+), and pK(-)K(-)pi(+) final states. The measurements are made using a dataset comprising (772 +/- 11) x ...