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We use an optimized hopping parameter expansion (linear \delta expansion) for the free energy to study the phase transitions at finite temperature and finite charge density in a global U(1) scalar Higgs sector in the continuum and on the…

High Energy Physics - Phenomenology · Physics 2017-08-23 D. Winder

New physics beyond the standard model (SM) can be model-independently formulated via dimension-6 effective operators, whose coefficients (cutoffs) characterize the scales of new physics. We study the probe of new physics scales from the…

High Energy Physics - Phenomenology · Physics 2016-10-07 Shao-Feng Ge , Hong-Jian He , Rui-Qing Xiao

The structure of the Higgs sector is a major issue in the quest of a detailed description of the electroweak interactions. Most of the effort is devoted to the study of the standard model--like Higgs boson at 126 GeV, however the…

High Energy Physics - Phenomenology · Physics 2013-12-18 Giacomo Cacciapaglia , Aldo Deandrea , Guillaume Drieu La Rochelle , Jean-Baptiste Flament

This work presents a detailed mathematical derivation of the hierarchically correlated orbital functional theory (HCOFT), a framework based on hypercomplex orbitals. Recent study [Phys. Rev. Lett. 133, 206402] has demonstrated that…

Chemical Physics · Physics 2025-03-04 Ting Zhang , Neil Qiang Su

Measuring the HI-halo mass scaling relation (HIHM) is fundamental to understanding the role of HI in galaxy formation and its connection to structure formation. While direct measurements of the HI mass in haloes are possible using…

We give improved estimates for the non-perturbative parameters appearing in the heavy quark expansion for inclusive decays. While the parameters appearing in low orders of this expansion can be extracted from data, the number of parameters…

High Energy Physics - Phenomenology · Physics 2014-12-16 Johannes Heinonen , Thomas Mannel

Charged Higgs decays are discussed within an effective lagrangian extension of the two-higgs doublet model, assuming new physics appearing in the Higgs sector of this model. Low energy constrains are used to imposse bounds on certain…

High Energy Physics - Phenomenology · Physics 2011-03-23 J. L. Diaz-Cruz , J. Hernandez-Sanchez , J. J. Toscano

We propose the strongly tilted Bose-Hubbard model as a natural platform to explore Hilbert-space fragmentation (HSF) and fracton dynamics in two-dimensions, in a setup and regime readily accessible in optical lattice experiments. Using a…

Strongly Correlated Electrons · Physics 2023-11-13 Melissa Will , Roderich Moessner , Frank Pollmann

Analytical Hartree-Fock gradients with respect to the cell parameter have been implemented in the electronic structure code CRYSTAL, for the case of one and two-dimensional periodicity. As in most molecular codes, Gaussian type orbitals are…

Computational Physics · Physics 2007-05-23 K. Doll , R. Dovesi , R. Orlando

The paper introduces a novel, hierarchical preconditioner based on nested dissection and hierarchical matrix compression. The preconditioner is intended for continuous and discontinuous Galerkin formulations of elliptic problems. We exploit…

Numerical Analysis · Mathematics 2022-01-31 Boris Bonev , Jan S. Hesthaven

We study leptonic and semi-leptonic decays of D and B mesons. Use of the Hopping Parameter Expansion (HPE) for two-point functions allows us continuously to vary the pseudoscalar mass from below m_D up towards m_B. We compute the…

High Energy Physics - Lattice · Physics 2007-05-23 D. S. Henty

This paper continues the research we developed in \cite{MT1} and \cite% {MT2}. The main aim of this paper is to investigate separability conditions for a cowreath $(A\otimes H^{op},H,\psi )$ constructed by using the $8$% -dimensional…

Quantum Algebra · Mathematics 2025-12-24 Claudia Menini , Blas Torrecillas

Contributions of the pre-ionized H$_2$ (PI-H$_2$) and ionized H$_2^+$ subsystems of the two-electron H$_2$ system to its high-order harmonic generation in 8-cycle $\sin^{2}$-like ultrafast intense laser pulses are calculated and analyzed…

Atomic Physics · Physics 2018-04-18 Hossein Iravani , Hassan Sabzyan , Mohsen Vafaee , Behnaz Buzari

The harmonic balance (HB) method is widely used in the literature for analyzing the periodic solutions of nonlinear mechanical systems. The objective of this paper is to exploit the method for bifurcation analysis, i.e., for the detection…

Dynamical Systems · Mathematics 2016-04-20 Thibaut Detroux , Ludovic Renson , Luc Masset , Gaetan Kerschen

The silicon-hydrogen system is of key interest for solar-cell devices, including both crystalline and amorphous modifications. Elemental amorphous Si is now well understood, but the atomic-scale effects of hydrogenating the silicon matrix…

Materials Science · Physics 2025-10-20 Louise A. M. Rosset , Volker L. Deringer

Modern deep models have massive parameter sizes, leading to high inference-time memory usage that limits practical deployment. Parameter sharing, a form of structured compression, effectively reduces redundancy, but existing approaches…

Machine Learning · Computer Science 2025-11-11 Boyang Zhang , Daning Cheng , Yunquan Zhang

We consider a modified extended Hubbard model (EHM) which, in addition to the on-site repulsion U and nearest-neighbor repulsion V, includes polarization effects in second-order perturbation theory. The model is equivalent to an EHM with…

Strongly Correlated Electrons · Physics 2009-10-31 M. E. Torio , A. A. Aligia , K. Hallberg , H. A. Ceccatto

To determine the Hilbert space and inner product for a quantum theory defined by a non-Hermitian $\mathcal{PT}$-symmetric Hamiltonian $H$, it is necessary to construct a new time-independent observable operator called $C$. It has recently…

High Energy Physics - Theory · Physics 2008-11-26 Carl M. Bender , Hugh F. Jones

The field of experimental particle physics studies the fundamental particles and forces that constitute matter and radiation. Frequently the experimental tools used to enable this study are accelerators and detectors. The Large Hadron…

High Energy Physics - Experiment · Physics 2023-07-06 Heather M. Gray

We comment on phase selection of the scattering amplitude, emphasizing that the elastic overlap function should have a central impact parameter profile at high energies and highlighting the role of the reflective scattering mode at the LHC…

High Energy Physics - Phenomenology · Physics 2021-03-10 S. M. Troshin , N. E. Tyurin