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Every paper Pith has read. Search by title, abstract, or pith.
155 papers in physics.class-ph · page 3
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Bouc-Wen models extended to collisions with external forces
Incremental Collision Laws Based on the Bouc-Wen Model: Improved Collision Models and Further Results
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Single π-flux hosts protected defect modes in acoustic lattice
Single $\pi$-flux hosting topological defect modes in bilayer acoustic metamaterials
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Kapitza pendulum gives analytic stability conditions via Magnus expansion
Kapitza's Pendulum as a Classical Prelude to Floquet-Magnus Theory
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q-deformed derivatives fit specific heat in anisotropic solids
An Extended Model of Non-Integer-Dimensional Space for Anisotropic Solids with q-Deformed Derivatives
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Newtonian force follows from Kepler laws with any homogeneous distance
Does Newtonian dynamics need Euclidean space?
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Triangular Möbius cavity shows two Berry phases at ±2π/3
Distinct Berry Phases in a Single Triangular M\"{o}bius Microwave Resonator
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Cube capacitance peaks at 90x90 sub-areas then falls
High-Discretization Method of Moments for Capacitance Calculation: A Cube and a Hollow Cylinder
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Both mass shells force a spinor matrix on phase spacetime
From Mass-Shell Factorisation to Spin: An Attempt at a Matrix-Valued Liouville Framework for Relativistic Classical and Quantum Phase-Spacetime
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Formulas give exact frequencies of topological corner states in beam frames
Higher-order topological corner states and edge states in grid-like frames
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Non-Hermitian lattices show full eigenspace coalescence
Exceptional deficiency of non-Hermitian systems
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Tilted spinning magnet levitates second magnet without gravity
On-axis and off-axis levitation by a rotating permanent magnet
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Coarse-grained measurements turn quantum statistics classical
The classical limit of quantum mechanics through coarse-grained measurements
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Extended Poynting theorem tracks magnetic dipole energy
Magnetic moments in the Poynting theorem, Maxwell equations, Dirac equation, and QED
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Extended Yvon engine matches CA engine exactly
Revisiting Endo-reversible Carnot engine: Extending the Yvon engine
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Finite-time thermodynamics traces engine optimization to cycle constraints
Finite-time thermodynamics: A journey beginning with optimizing heat engines
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Optical and acoustic forces share origins in wave densities
Radiation forces and torques in optics and acoustics
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Hamiltonian dynamics describes thermodynamic transformations
Hamiltonian thermodynamics on symplectic manifolds
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Scalar action recovers nonholonomic dynamics by extremization
Variational approach to nonholonomic and inequality-constrained mechanics
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ODE model predicts Nordic skier speeds on 3D courses
A mathematical model for Nordic skiing
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Scaling symmetries recover n-body central configurations
Relative Equilibria for Scaling Symmetries and Central Configurations
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Ray tracing beats RSI for ultrasound through many interfaces
Efficient numerical frameworks for modelling ultrasonic beams propagating across interfaces
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Kicked top chaos peaks then fades as nonlinearity rises
Non-linearity and chaos in the kicked top
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Classical granules show multiple Berry phases under nonlinear drive
Harnessing Nonlinear Dynamics for Time-Driven Berry Phase in Classical Systems
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Relativity deduced without light speed or Maxwell equations
Relativity with or without light and Maxwell
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Kepler billiard second foci lie on a circle
Geometric properties of integrable Kepler and Hooke billiards with conic section boundaries
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Valley Hall modes transmit near-maximally without valley conservation
Canonical scattering problem in topological metamaterials: Valley-Hall modes through a bend
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Canonical maps prove anisotropic oscillator maximally superintegrable
Dynamical symmetries of the anisotropic oscillator
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Finite reservoir produces polytropic gas process
Simple realization of the polytropic process with a finite-sized reservoir
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Dipolar strength caps bacterial magnetic compass size
Macroscopic bioinspired magnetic active matter and the physical limits of magnetotaxis
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Lagrangians plus relativity postulates yield E=mc² and field invariance
Demystifying the Lagrangians of special relativity
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Field equations stay identical after any coordinate change
Demystifying the Lagrangian formalism for field theories
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Classical cavity yields Planck spectrum via scale parameter
Classical Planck Spectrum for Relative Thermal Radiation, Classical Zero-Point Radiation, and Scale Parameter
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Neural nets recover exact algebraic potentials from trajectories
Learning and Interpreting Potentials for Classical Hamiltonian Systems
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Wave speed on string derived for any pulse shape
Speed of transverse waves in a string revisited
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Invariants of m vectors and n tensors bounded by 2m+6n-3
The number of independent invariants for m unit vectors and n symmetric second order tensors is 2m+ 6n-3
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Equilateral three-body orbits in 4D are generically unstable
On the n-body problem in $\mathbb{R}^4$
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Graded rod arrays trap waves to boost piezoelectric harvesting
Graded metasurface for enhanced sensing and energy harvesting
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Minkowski tensor alone yields four-vector radiation momentum in matter
Reply to "Comment on 'Analysis of Recent Interpretations of the Abraham-Minkowski Problem'"
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Derived equations explain Kelvin probe measurements
Mathematical analysis of the operation of a scanning Kelvin probe
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Euler-Lagrange equation identical in every coordinate system
Demystifying the Lagrangian of classical mechanics
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Proper time comparison requires linear rigidity in accelerated systems
Proper-time measurement in accelerated relativistic systems
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Dual heat-source maps identify hyperelastic constants locally
Identification of constitutive parameters from full thermal and kinematic fields: application to hyperelasticity
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Adapted swarm optimizer identifies hyperelastic parameters from one test
Development of an inverse identification method for identifying constitutive parameters by metaheuristic optimization algorithm: Application to hyperelastic materials
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Striations appear in NR fatigue at every loading ratio
A post mortem analysis of the strain-induced crystallization effects on fatigue of elastomers
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Sensitivity-based fields identify nonlinear rubber parameters
Identification of Constitutive Parameters Governing the Hyperelastic Response of Rubber by Using Full-field Measurement and the Virtual Fields Method
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Constant power radiation patterns derived for all stationary worldlines
Stationary Worldline Power Distributions
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Nanosphere boosts molecular energy transfer via modal calculation
Modal Approach to the Theory of Energy Transfer Mediated by a Metallic Nanosphere
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Redefined momentum removes Ostrogradsky instability
Revisiting the Hamilton theory for second order Lagrangian
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Thermalization holds without stochasticity in Hamiltonian systems
Thermalization of non-stochastic Hamiltonian systems
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Centrifugal governor example clarifies DA normal form steps
Introduction to the Differential Algebra Normal Form Algorithm using the Centrifugal Governor as an Example