INDEX
Every paper Pith has read and judged, in one searchable index.
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physics.class-ph arXiv submitted 2026-07-31Hollow-sphere stress fields reduced to explicit series
Satoshi Takada +1 · “Revisiting Stress Analysis in a Three-Dimensional Elastic Hollow Sphere under Uniaxial Compression via the Inverse Laplace Transform Expressions within an Elastodynamic Framework”
2607.29286 -
cond-mat.mtrl-sci arXiv submitted 2026-07-31One fracture model unifies plastic
Blaise Bourdin +1 · “Strength-degradation phase-field regularization of cohesive fracture: the antiplane case”
2607.29157 -
cond-mat.stat-mech arXiv submitted 2026-07-30One assumption proves the second law—and exposes its limit
Yu Qiao · “Deriving the second law of thermodynamics and exploring its boundaries”
2607.28765 -
physics.hist-ph arXiv submitted 2026-07-30Roemer’s method still yields c within 10% with small telescopes
Fabio Falchi +3 · “De mora luminis: Roemer's discovery 350 years later”
2607.28512 -
physics.class-ph arXiv submitted 2026-07-29Five charges beat Maxwell's bound with 24 equilibria
Philip Arathoon +2 · “The Maxwell Conjecture is False”
2607.27197 -
cond-mat.soft arXiv submitted 2026-07-29Rigid kirigami snaps into locked 3D shapes by design
Xiaoyuan Ying +1 · “Instability-induced bistable shape-morphing kirigami structures”
2607.26941 -
math.AP arXiv submitted 2026-07-28One tunable weight tames ill-posed homogenized wave equations
R\'emi Cornaggia +4 · “Well-posed homogenized strain-gradient models for linear elastodynamics and elastostatics in arbitrary periodic media”
2607.25602 -
math-ph arXiv submitted 2026-07-28Painlevé paradox flips with the observer's frame
Stefano Pasquero · “Notes on a paper by F. G\'enot and B. Brogliato on the Painlev\'e paradox”
2607.25414 -
gr-qc arXiv submitted 2026-07-27One function maps binary orbits cycle to cycle under radiation reaction
Francisco M. Blanco · “The Magnusian generator for dissipative systems and application to leading 2.5PN radiation-reaction dynamics”
2607.24335 -
physics.class-ph arXiv submitted 2026-07-27Two pairs of period-two states appear in one parametric oscillator
P. Y. Chan +4 · “Multibranched parametric resonance and swallowtail catastrophe in electromechanical oscillators with nonlinear friction”
2607.27242 -
cond-mat.soft arXiv submitted 2026-07-24Coil-of-coils stiffness and twist hinge on a 19.47° angle
Hiroyuki Shima · “Geometric Renormalization and a Chirality Threshold in Recursively Coiled Filaments”
2607.22158 -
physics.optics arXiv submitted 2026-07-23Three derivations converge on one Wigner-angle formula
C. J. McKinstrie +1 · “How to calculate the Wigner angle”
2607.21724 -
physics.class-ph arXiv submitted 2026-07-23Passive obstacles turn plain wave packets into vortices and rings
Zhiling Zhou +6 · “Spatiotemporal Vortex Rings Induced by Spatiotemporal Coupling”
2607.21322 -
nlin.SI arXiv submitted 2026-07-23New Lax pairs capture all three invariants of the 2D oscillator
Govind S. Krishnaswami +2 · “Lax pairs and $r$-matrices for some two-dimensional isotropic oscillators”
2607.20983 -
math-ph arXiv submitted 2026-07-21One blurring length governs the shower curtain effect
Cristophe Gomez (I2M) +1 · “Imaging through rough interfaces: The shower curtain effect”
2607.18947 -
physics.class-ph arXiv submitted 2026-07-21Three event cameras reconstruct 3D bubble paths at 97% consistency
A Al Brahim +4 · “Three-Dimensional Bubbly Flow Measurement Using Event-based Vision Sensor Cameras”
2607.18823 -
physics.flu-dyn arXiv submitted 2026-07-21A rising electric field puts droplets through tilt-and-wobble regimes
Saurabh Sharma (CORIA) +4 · “Influence of Electrohydrodynamic on Droplet Stability in Leaky Dielectric Media”
2607.21638 -
cond-mat.mes-hall arXiv submitted 2026-07-20Mechanical oscillators host a genuinely non-Abelian gauge field
Ivan Velkovsky +4 · “Non-Abelian Gauge Field Mechanics”
2607.18215 -
physics.hist-ph arXiv submitted 2026-07-18Absolute velocity's undetectability is not a Newtonian theorem
Jorge Manero +2 · “On the detection of absolute velocity in a Newtonian universe”
2607.16584 -
physics.flu-dyn arXiv submitted 2026-07-17An island turns random waves into a vortex half the time
Alex J. Vernon +4 · “Vortex formation around islands in random waves”
2607.15938 -
math-ph arXiv submitted 2026-07-16Exact frequency makes Duffing perturbation converge 4× faster
Ramij Ahamed +1 · “Study of Duffing oscillator using an improved Lindstedt Poincare method and relevant comparisons”
2607.15233 -
cond-mat.stat-mech arXiv submitted 2026-07-15Residual energy grows as (ξN)^{2/3} in a cooled model solid
Matteo Razza +2 · “Cooling rate and glassy behavior in the Fermi--Pasta--Ulam system”
2607.13833 -
cond-mat.stat-mech arXiv submitted 2026-07-13Kinetic Gibbs-Duhem recovers sound speed
Fei Wang · “Density evolution at fluid-fluid interfaces: A generalized Gibbs-Duhem theory”
2607.11988 -
cond-mat.stat-mech arXiv submitted 2026-07-13Kinetic term in Gibbs–Duhem relation yields a density evolution law
Fei Wang · “Density evolution at fluid-fluid interfaces: A generalized Gibbs-Duhem theory”
2607.11988 -
physics.class-ph arXiv submitted 2026-07-13Thin wires of any shape carry linear surface charge
Roberto Merlin · “Surface charge density of current-carrying conductors: An exact analytical solution for infinitely thin wires of arbitrary shape”
2607.11480 -
physics.class-ph arXiv submitted 2026-07-11Wire media tuned over 80% by simple breathing motion
Denis Sakhno +1 · “Tuning Plasma Frequency of Nested Wire Media”
2607.10303 -
physics.class-ph arXiv submitted 2026-07-10Water waves trace the inverted oscillator’s phase space
Georgi Gary Rozenman +4 · “Observation of Phase Space Dynamics of Inverted Harmonic Oscillator”
2607.18297 -
physics.class-ph arXiv submitted 2026-07-10Orientation tensors fix stiffness of spheroid composites
Antoine Martin (IRESNE) · “Mean field homogenization schemes for composites with prolate and oblate spheroids: use of the orientation tensors and computation of the strain second-moments”
2607.09213 -
physics.class-ph arXiv submitted 2026-07-10Circling exceptional points flips elastic spin by path handedness
Chenwen Yang +1 · “Chiral switching of elastic spin via dynamic encirclement of exceptional points”
2607.09083 -
physics.class-ph arXiv submitted 2026-07-09Classical acceleration of an electron yields exact Planck radiation
Michael R.R. Good · “An advanced undergraduate derivation of acceleration thermality”
2607.08184 -
physics.class-ph arXiv submitted 2026-07-07Fixed-area trajectory bundles converge to Gaussian wave-packet dynamics
Taisuke Hasegawa · “Constrained Classical Trajectory Bundles with Fixed Symplectic Area”
2607.07734 -
physics.class-ph arXiv submitted 2026-07-07Classical bundles keep fixed area
Taisuke Hasegawa · “Constrained Classical Trajectory Bundles with Fixed Symplectic Area”
2607.07734 -
physics.class-ph arXiv submitted 2026-07-07Quartic motions share one clock
Teepanis Chachiyo · “Spectral taxonomy for quartic systems: fundamental clock, parity, and continuum”
2607.07731 -
physics.class-ph arXiv submitted 2026-07-06Electric pulse rewrites cyclotron shear
Manthan Kashyap Datta +2 · “Memory-like effects and kinematics of trajectories in Cyclotron motion”
2607.06594 -
physics.class-ph arXiv submitted 2026-07-05Helicoid plus magnetic field yields half-cyclotron Landau levels
Abdullah Guvendi +3 · “Phase-space structure and nonlinear dynamics of a charged particle on a helicoidal manifold under a magnetic field”
2607.07726 -
math.AP arXiv submitted 2026-07-03D2Q9 LBM needs cubic terms neglected for second-order NS
Fran\c{c}ois Dubois (LMSSC +6 · “Isotropy and Galilean invariance of Lattice Boltzmann Method: Theoretical and numerical analysis using oblique dipole benchmark *”
2607.03222 -
cond-mat.stat-mech arXiv submitted 2026-07-03Battery power peaks at half efficiency
Rui-Han Liu +2 · “Finite-Time Thermodynamics of Battery Discharging: Power-Efficiency Trade-Off and Optimization”
2607.03157 -
physics.class-ph arXiv submitted 2026-07-02Metainterface friction laws have finite positive lower bound on slope
Julien Scheibert (LTDS) · “The slope of the friction law of hertzian-asperity--based metainterfaces has a finite positive lower bound”
2607.01892 -
physics.class-ph arXiv submitted 2026-07-01Non-Hermitian coupling extends topological modes across acoustic lattice
Xulong Wang +2 · “Extended topological mode in a one-dimensional non-Hermitian acoustic crystal”
2607.01472 -
physics.class-ph arXiv submitted 2026-07-01Active and passive mass need not be equal
Domenico Giulini · “What if active and passive gravitational masses were not equal?”
2607.02614 -
hep-th arXiv submitted 2026-06-29Quadratic gauge transformation preserves QFT invariance
Sunita Singh +1 · “Quadratic Gauge Transformation”
2606.30177 -
gr-qc arXiv submitted 2026-06-28Tubes replace point particles with smooth stress-energy in GR
Abhi Savaliya · “Gravitating Tubes Beyond World Line Paradigm In General Relativity”
2607.00036 -
nlin.CD arXiv submitted 2026-06-28Stable cycler subfamilies exist in every three-body family examined
Shane D. Ross +1 · “Stable Ballistic Prograde Cyclers in the Three-Body Problem”
2606.29189 -
nlin.CD arXiv submitted 2026-06-28Stable unpowered cyclers found across mass ratios
Shane D. Ross +1 · “Stable Ballistic Prograde Cyclers in the Three-Body Problem”
2606.29189 -
physics.class-ph arXiv submitted 2026-06-26New SI constants form one geometric conversion table
B. C. Regan · “The structure of the new SI”
2606.30679 -
math.AP arXiv submitted 2026-06-23Dual fields yield min principle for elastodynamics without stored energy
Amit Acharya · “A new perspective in linear Cauchy Elasticity: variational minimum principles for statics, dynamics, and heterogeneous materials”
2606.24782 -
nlin.CD arXiv submitted 2026-06-22Recurrence entropy maps chaos structures in Hamiltonian flows
Matheus Rolim Sales +4 · “Recurrence in two degrees of freedom Hamiltonian flows”
2606.23501 -
physics.class-ph arXiv submitted 2026-06-21Python package computes acoustic scattering via T-matrix
Nikita Ustimenko +1 · “acoustotreams -- A Python package for acoustic-wave scattering based on the $T$-matrix method”
2606.22573 -
math-ph arXiv submitted 2026-06-21Three methods agree on beam oscillation amplitude
Ekaterina V. Shishkina +2 · “Localized oscillation of an Euler--Bernoulli beam with time-varying parameters on a visco-elastic foundation: asymptotics, adiabatic invariant, and equivalent Hamiltonian system”
2606.22444 -
physics.class-ph arXiv submitted 2026-06-20Legendre transform equates nonlocal strain and stress potentials
Marko \v{C}ana{\dj}ija +1 · “On Potentials and Complementary Potentials in One-Dimensional Nonlocal Integral Formulations”
2606.22202