Showing papers in "Annals of Physics in 2019"

TL;DR: This work explains and compares the different methods available to construct a time-evolved matrix-product state, namely theTime-evolving block decimation, the MPO $W^\mathrm{II}$ method, the global Krylov method,The local Krykov method and the one- and two-site time-dependent variational principle.

TL;DR: In this paper, the authors investigate the fate of symmetric tensor gauge theories in the presence of spatial curvature and find that weak curvature can induce small violations on the mobility restrictions of charges, leaving a sense of asymptotic fractonic/sub-dimensional behaviour on generic manifolds.

TL;DR: In this article, the authors give an overview of resurgence theory from a physics point of view, but with particular mathematical flavour, and apply Morse theory to a toy model path integral to understand why physical observables should be resurgent functions.

TL;DR: In this paper, the authors studied the deflection of light by a class of phantom black hole and wormhole solutions in the weak limit approximation, and showed that the particular choice of the shape function and mass function plays a crucial role in the final expression for the angle of light.

TL;DR: In this paper, the authors obtained analytic anisotropic spherical solutions in f ( R ) scenario through gravitationally decoupled minimal geometric deformation technique and analyzed the physical acceptability and stability of the resulting solutions via graphical observations of effective energy density, effective radial as well as tangential pressure, energy conditions, stability through speed of sound and adiabatic index.

TL;DR: In this article, the authors propose to characterize fractional excitations in foliated fracton phases up to the addition of quasiparticles with 2D mobility, i.e., two quaiparticles differing by a set of qs that move along 2D planes are considered to be equivalent.

TL;DR: In this paper, the authors studied the full phase diagram of a degenerate three-band Hubbard-Hund model on a Bethe lattice at zero temperature using single-site dynamical mean-field theory and the numerical renormalization group as efficient real-frequency multi-band impurity solver.

TL;DR: In this article, a relativistic Generalized Uncertainty Principle and its related minimum length are considered in non-relativistic Quantum Mechanics, and the modified Klein-Gordon, Schrodinger and Dirac equations are used to compute quantum gravity corrections.

TL;DR: In this article, the Gauss-Bonnet theorem was used to study the deflection angle of Kerr-MOG black holes for different values of the parameter in modified gravity (MOG).

TL;DR: In this paper, the authors studied the effect of alternative gravity in the formation of a star and found that the model is consistent with various energy conditions and also satisfies Herrera's cracking condition, TOV equation, static stability criteria of Harrison-Zel and dovich-Novikov etc.

TL;DR: In this article, the authors constructed the shadow images of charged wormholes in EMD theory and showed that the shadow has an effect of the charges P and Q and that the radius of the shadow increases with the magnetic charge P as well as the electric charge Q.

TL;DR: In this paper, the relativistic quantum dynamics of spin-0 massive charged-free particles in (1+2)-dimensions Gurses space-time Gurses (1994) backgrounds are investigated, and the effects on the energy eigenvalue are analyzed.

TL;DR: In this article, it was shown that in the delocalized non-ergodic regime the spin-spin correlators decay with the characteristic time that scales as non-trivial power of the full Hilbert space volume.

TL;DR: There exist physically viable traversable as well as stable wormhole solutions in most of the cases in f ( R, T ) gravity.

TL;DR: In this paper, a large family of exceptionally long-lived excitation modes is introduced, taking the form of cosm m θ and sin m ǫ with odd m values for a circular Fermi surface, with relaxation rate dependence on m of the form m 4 log m, valid at not too large m.

TL;DR: In this article, a pedagogical derivation of the unconventional electronic hydrodynamics in graphene is reported, based on the kinetic theory, which is neither Galilean nor Lorentz-invariant.

TL;DR: Wang et al. as discussed by the authors introduced the geometric-topology surgery theory on spacetime manifolds where quantum systems reside, cutting and gluing the associated quantum amplitudes, specifically in 2+1 and 3+1 spacetime dimensions.

TL;DR: In this paper, the effects of Rastall parameters on the behavior of spherically symmetric static distributions of perfect fluid matter were examined and it was shown that the condition of pressure isotropy is exactly the same as for Einstein gravity.

TL;DR: In this article, the Kubo formulas were systematically evaluated up to the second order in the quantum virial expansion applicable to the high-temperature regime for two-component fermions with zero-range interaction both in two and three dimensions and study their spectral functions of bulk and shear viscosities for an arbitrary scattering length.

TL;DR: The theory of stabilizer codes as a discrete version of a linear gauge structure as well as the paradigm fracton models, X-Cube and Haah's cubic code are discussed.

TL;DR: In this article, the authors classify and predict the physical spectrum for a wide range of GUT-like theories, with special emphasis on GUTlike cases, and show that discrepancies between the spectrum of elementary fields and physical particles frequently arise.

TL;DR: The PREX II experiment as discussed by the authors measured the masses and beta decay half-lives of very neutron rich heavy nuclei so that they can more accurately predict the abundances of heavy elements that are produced.

TL;DR: In this paper, the full momentum dependence of spectrum of a point-like impurity immersed in a dilute one-dimensional Bose gas is calculated on the mean-field level, and the extracted low-energy parameters of impurity spectrum, namely, the binding energy and the effective mass of particle, are in qualitative agreement with the results of quantum Monte Carlo simulations.

TL;DR: In this paper, the authors developed a version of Lifshitz theory that also accounts for the electromagnetic contribution to the cosmological constant and gave a possible quantum-optical explanation for what has been called dark energy.

TL;DR: In this paper, a generalization of the Schwarzschild-de Sitter metric can be constructed for modified gravity theories with arbitrary modified dispersion relations, MDRs, and Lorentz invariance violations, LIVs.

TL;DR: In this article, the (2+1)-dimensional Dirac oscillator in the presence of a homogeneous magnetic field in an Aharonov-Bohm-Coulomb system was studied and the energy spectrum for the bound states of the system and their exact dependence on the cyclotron frequency ω c and on the parameters Z and Φ A B were derived.

TL;DR: In this article, a quantum hydrodynamic model for charge transport in graphene is derived from a moment expansion of the Wigner-Boltzmann equation, where the needed closure relations are obtained by adding quantum corrections based on the equilibrium wigner function to the semiclassical model formulated in Camiola and Romano (2014) by exploiting the Maximum Entropy Principle.

TL;DR: In this paper, a cosmological scenario in f ( R, T ) gravity for a flat FLRW model of the universe is considered, in which the model facilitates the formation of structure in the universe according to the Jeans instability condition as our model transits from radiation dominated era to matter dominated era.

TL;DR: In this paper, a basis-independent formulation of quantum coherence is proposed, which is related to the purity of system rather than the superposition in a particular basis, where the maximally mixed state is used as the reference state, which allows for a way of defining coherence that is invariant under arbitrary unitary transformations.

TL;DR: In this paper, the (2 + 1 ) -dimensional Dirac-Dunkl oscillator coupled to an external magnetic field was studied and the Hamiltonian was obtained from the standard Dirac oscillator by changing the partial derivatives by the Dunkl derivatives.