Results 81 to 90 of about 18,545 (191)
Boundary charges and integral identities for solitons in (d+1)-dimensional field theories
Nuclear Physics B, 2017 We establish a 3-parameter family of integral identities to be used on a class of theories possessing solitons with spherical symmetry in d spatial dimensions.
Sven Bjarke Gudnason +2 more
doaj +1 more source
On the existence of finite-energy lumps in classic field theories
, 2003 We show how the existence of non-trivial finite-energy time-dependent classical lumps is restricted by a generalized virial theorem.
G.H. Derrick +5 more
core +1 more source
Molecular Simulations of Fluid Interfaces
WIREs Computational Molecular Science, Volume 15, Issue 4, July/August 2025.Left: A molecular simulation snapshot of a fluid–fluid interface. Right: The equations and neural network diagram indicate that interactions in such molecular systems can be modeled using quantum Hamiltonians, classical force fields, or neural network potentials.
Chung Chi Chio +3 more
wiley +1 more source
Mathematical Methods in the Applied Sciences, Volume 48, Issue 8, Page 9225-9240, 30 May 2025.ABSTRACT In this paper, we consider the energy critical nonlinear Schrödinger equation with a repulsive inverse square potential. In particular, we deal with radial initial data, whose energy is equal to the energy of static solution to the corresponding nonlinear Schrödinger equation without a potential.
Masaru Hamano, Masahiro Ikeda
wiley +1 more source
New Journal of Physics, 2020 The ground state solution of hydrogen molecule and ions are numerically obtained as an application of our scheme to solve many-electron multi-center potential Schrödinger equation by using one-dimensional hydrogen wavefunctions as basis functions.
Yanoar Pribadi Sarwono +2 more
doaj +1 more source
Journal of Computational Chemistry, Volume 46, Issue 11, April 30, 2025.ABSTRACT Electrostatic embedding quantum mechanics/molecular mechanics (QM/MM) methods in periodic boundary conditions (PBC) can successfully describe the condensed phase reactivity of a fragment treated at the QM level with an atomistic description of an electrostatic environment treated at the MM level.
Simone Bonfrate +5 more
wiley +1 more source
Isothermal sweep theorems for ultra-cold quantum gases in a canonical ensemble
, 2011 After deriving the isothermal Hellmann-Feynman theorem (IHFT) that is suitable for mixed states in a canonical ensemble, we use this theorem to obtain the isothermal magnetic-field sweep theorems for the free, average and trapping energies, and for the ...
Iskin, M.
core +1 more source
Electron Mass Predicted From Substructure Stability in Electrodynamical Model
Frontiers in Physics, 2020 Modern physics has characterized spacetime, the interactions between particles, but not the nature of the particles themselves. Previous models of the electron have not specified its substance nor justified its cohesion.
Stéphane Avner, Florence Boillot
doaj +1 more source
A Virial Theorem for the Kinetic Energy of a Heavy Quark inside Hadrons
, 1993 The formalism of the heavy quark effective theory is used to derive the field-theory analog of the virial theorem, which relates the matrix element of the kinetic energy of a heavy quark inside a hadron to a matrix element of the gluon field strength ...
Altarelli +28 more
core +2 more sources
ChemPhysChem, Volume 26, Issue 5, March 3, 2025.Pauli repulsion is better described as being due to the potential than the kinetic energy. It can be expressed as a sum of Molecular Orbital Pair Contributions to the Exchange repulsion energy (MOPCE). Abstract It is shown that the exchange repulsion energy, Exr, can be rationalized by partitioning the respective energy expression for two systems with ...
Johannes Henrichsmeyer +2 more
wiley +1 more source