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Physics

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First bounty you offer on your own question.
Awarded 2374 times.
Is there anything that can exist forever? [closed]
Awarded Jan 21 at 17:34
RG Flows of Ising Magnet
Awarded Jan 18 at 23:36
Phase in translation operator
Awarded Jan 12 at 4:01
Incomplete treatment in Sean Carroll’s GR notes, of phase and wave vector?
Awarded Jan 1 at 5:01
Spin chain hamiltonian from dynamical $R$-matrix?
Awarded Dec 11, 2025 at 19:08
Pressure of liquid in a problem related to capillary tubes from 200 Puzzling problems in physics
Awarded Dec 11, 2025 at 18:13
Question about self-orthogonality of non-Hermitian Hamiltonians
Awarded Nov 26, 2025 at 0:58
What astrophysical or artificial light sources provide the highest usable irradiance at the Solar Gravitational Lens focal line (∼550–1000 AU)?
Awarded Nov 22, 2025 at 3:36
Time ordering vs symmetry transformation in Euclidean correlation functions
Awarded Nov 17, 2025 at 0:57
Football rolling down a hill
Awarded Nov 9, 2025 at 5:36
Application of Dirac brackets to Dirac fermions in a tetrad gravity background
Awarded Oct 27, 2025 at 23:47
Feynman rules from LSZ reduction formula in theories with derivative couplings
Awarded Oct 13, 2025 at 15:36
Invariant condition of weak gravitation field
Awarded Oct 7, 2025 at 14:15
Why is my dryer radioactive?
Awarded Sep 30, 2025 at 4:20
In the space-like propagator $D(x-y)$, does the choice of branch point in the integral change its result? [duplicate]
Awarded Sep 18, 2025 at 17:09
Can we calculate the fastest passage of time? [closed]
Awarded Sep 11, 2025 at 18:23
Can Proton-Boron Fusion be Ignited in a Hydrogen Bomb?
Awarded Sep 4, 2025 at 20:46
Which Electric Field an Oscillating charge produces - Coulombic,Induced,Both? What field is experienced by test charge at zero crossing of $E$ & $B$?
Awarded Aug 30, 2025 at 10:14
Convergence of $E$ for a system of free fermions using Green's functions
Awarded Aug 24, 2025 at 5:22
What is conformal time?
Awarded Aug 9, 2025 at 16:07
What is the definition of interference?
Awarded Aug 8, 2025 at 14:40
Atmospheric shrapnel vs speed of sound
Awarded Aug 5, 2025 at 17:38
Action of time-reversal on Dirac bilinears
Awarded Aug 1, 2025 at 18:50
Can our eyes see virtual objects?
Awarded Jul 14, 2025 at 10:28
Rayleigh scattering not weakening light
Awarded Jul 10, 2025 at 10:48
Topological superconductors, chemical potential and field strengths
Awarded Jul 5, 2025 at 10:19
Energy and momentum of electromagnetic field generated by a moving particle with constant velocity
Awarded Jul 1, 2025 at 14:24
Interpretation of the Lorentz transformation property of quantum fields
Awarded Jun 30, 2025 at 14:45
Am I right about the Green’s function in QFT?
Awarded Jun 30, 2025 at 11:22
Isotropic tensor function
Awarded Jun 26, 2025 at 17:25
First-order approximation of Schwarzschild metric for perihelion advance calculation?
Awarded Jun 23, 2025 at 12:53
How do you find the envelope function for a superposition of two waves or more?
Awarded Jun 19, 2025 at 9:07
Finding Equivalent Resistance in Polygonal Mesh
Awarded Jun 10, 2025 at 8:42
Apparent contradiction in wavelength of standing waves in an open-ended organ pipe
Awarded May 16, 2025 at 9:00
Shift in center of mass-energy without external interaction
Awarded May 15, 2025 at 6:12
Trouble understanding proof of the cluster decomposition principle
Awarded May 15, 2025 at 5:26
Formal proof that a path integral over node-crossing paths vanishes
Awarded May 3, 2025 at 11:52
Why are NASA etc so good at hitting tiny targets in tiny time windows?
Awarded Apr 30, 2025 at 14:26
How can one practically measure electrostatic potential differences in a circuit when there's a varying magnetic flux?
Awarded Apr 30, 2025 at 1:36
Useful approximation for net field vector near a pair of cubic magnets
Awarded Apr 24, 2025 at 19:24
Transformation law of Lie algebra of Lorentz group $SO^+(1,3)$
Awarded Apr 22, 2025 at 15:06
Where does the string theory’s exponentially damped propagator come from?
Awarded Apr 13, 2025 at 11:48
Why is this an out-of-time-order (OTOC) correlator?
Awarded Apr 11, 2025 at 15:11
Electron diffusion calculation in Piers Coleman's book
Awarded Apr 7, 2025 at 12:50
How do you derive the condition for which the quasi-magnetostatic approximation holds?
Awarded Apr 7, 2025 at 4:54
Can we say something analogous to that GR is purely spin-2 with respect to other maximal symmetric background spacetimes (dS or AdS)?
Awarded Apr 2, 2025 at 20:21
Could electrons in $s$-orbitals contribute in any meaningful way to the stability of the atomic nucleus?
Awarded Apr 2, 2025 at 2:06
Does a Hilbert space defined on time slices imply Heisenberg picture?
Awarded Mar 18, 2025 at 6:05
What is the simplest 2D spin-$\frac{1}{2}$ model with a $\mathbb{Z_2} \times \mathbb{Z_2} $ topological bulk?
Awarded Mar 12, 2025 at 1:52
Thinnest layer of water to produce buoyant force
Awarded Mar 3, 2025 at 17:33
How exactly does a camera measure the electromagnetic field?
Awarded Feb 25, 2025 at 22:58
Diagrammatic representation Cosmological Perturbation Theory - Symmetry factors
Awarded Feb 22, 2025 at 9:15
Why we have only planar diagram in the cyclic ordered Feynman rules of Yang-Mills?
Awarded Feb 15, 2025 at 10:30
(post deleted or otherwise unavailable)
Awarded Feb 6, 2025 at 17:22
Do composite-boson-states live in symmetrized or antisymmetrized Fock Space?
Awarded Feb 6, 2025 at 9:06
Positivity of the determinant of the lattice Dirac operator in (2+1)D on the lattice
Awarded Jan 31, 2025 at 9:48
Interference of two perpendicular standing waves on a string (Melde's Experiment)
Awarded Jan 31, 2025 at 4:01
Conservation of magnetic flux in a perfectly conducting circuit with variable inductance (e.g. solenoid of variable cross section)
Awarded Jan 29, 2025 at 1:06
If our yearly methane emissions increase by 1 ton per year, does the atmospheric methane concentration increase forever or only by $12/\ln2$ tons?
Awarded Jan 21, 2025 at 8:13
Question regarding Hubbard-Stratonovich transformation for linearly constrained Quadratic Unconstrained Binary Optimization (QUBO) problem
Awarded Jan 16, 2025 at 8:33
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