Recent activity in Open problems

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2 answers 283 views

Should retarded gravitational potentials being considered in cosmology ?

answered Nov 4, 2025 in Open problems by anonymous

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0 answers 111 views

Calculate the equivalent resistance.

asked Oct 25, 2025 in Open problems by anonymous

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1 answer 1463 views

Is the cosmological horizon very slightly gravitationally repulsive?

commented Jul 14, 2025 in Open problems by Vladimir Kalitvianski (112 points)

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0 answers 692 views

Could the W, the Z or the Higgs form "molecules", i.e., bound states?

edited May 29, 2024 in Open problems by CrazyCat

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0 answers 1445 views

Has the running of the electron mass ever been measured? Is it possible at the LHC?

edited Apr 30, 2024 in Open problems by Benoît

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0 answers 1794 views

is there any truth in this answer? and if so why the problem is considered to be not solved?

comment moved Apr 28, 2024 in Open problems by Arnold Neumaier (15,797 points)

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0 answers 1641 views

Does the electric charge run differently with energy for electrons and for W bosons?

commented Sep 19, 2023 in Open problems by Klaus

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0 answers 834 views

Numerical reconstruction of Einstein's field equations

asked Feb 3, 2023 in Open problems by user287658762

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3 answers 6714 views

Why is the fine structure constant roughly 1/137? Conjectures?

answered Jan 7, 2023 in Open problems by dan watkins

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0 answers 849 views

Is space made of fluctuating lines?

edited Dec 26, 2022 in Open problems by Michael

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0 answers 1258 views

Relativistic particle in Coulomb field

commented Oct 1, 2022 in Open problems by Vladimir Kalitvianski (112 points)

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0 answers 1550 views

The value of a theory of non-abelian gerbes?

commented Jul 2, 2022 in Open problems by Quantumnessie (90 points)

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0 answers 1796 views

I need formulas analogous to those in the article in which the leptons are made, for the appropriate collisions and products?

asked Mar 8, 2022 in Open problems by Patrycja

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0 answers 2067 views

Calculate the magnitude of the magnetic field at the distance X from the wire.

commented Feb 27, 2022 in Open problems by Dilaton (6,240 points)

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0 answers 1483 views

Find out the magnitude of the force acting on the charge?

commented Feb 27, 2022 in Open problems by Dilaton (6,240 points)

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0 answers 1750 views

Can the weak force be considered residual?

commented Jan 28, 2022 in Open problems by Dilaton (6,240 points)

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0 answers 1194 views

Can we model particles of the electroweak sector as Einstein-Rosen bridges (wormholes)?

edited Aug 10, 2021 in Open problems by Jon dough (5 points)

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3 answers 3486 views

Is concept expressed in "Autodidactic Universe" article plausible?

answered May 26, 2021 in Open problems by Sean s.

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0 answers 1957 views

A conjecture on mass of photon

commented Nov 11, 2020 in Open problems by Flamma (140 points)

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0 answers 1521 views

How to find the stationary and time dependent solution of pauli master equation

edited May 7, 2020 in Open problems by Dim (5 points)

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0 answers 2070 views

Is the g-factor of a charged black hole 2 or is it 2+alpha/pi?

commented Apr 11, 2020 in Open problems by Magnetic Lady

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1 answer 1526 views

Dirac particle confined to a ring

answer edited Feb 3, 2020 in Open problems by Vladimir Kalitvianski (112 points)

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1 answer 4408 views

Experimental boundaries for size of electron?

commented Jan 13, 2020 in Open problems by Arnold Neumaier (15,797 points)

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1 answer 3201 views

Is the electron-g-factor related to Dirac's string trick?

answer edited Dec 26, 2019 in Open problems by Arnold Neumaier (15,797 points)

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0 answers 2698 views

A block of mass m is dropped onto the top of a vertical spring

commented Dec 22, 2019 in Open problems by Dilaton (6,240 points)

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0 answers 2912 views

Is the fine structure constant the phase change when a photon is emitted?

commented Dec 16, 2019 in Open problems by anonymous

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0 answers 1239 views

Change in quantities due the measurement?

edited Nov 14, 2019 in Open problems by Asaint (90 points)

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0 answers 1131 views

Achieve geosynchronous orbital speeds at leo while moving relative to an electric field

asked Oct 3, 2019 in Open problems by anonymous

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0 answers 1137 views

Can one quantify the total luminosity of the cosmological horizon?

edited Aug 4, 2019 in Open problems by Frauke

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1 answer 2744 views

Are the viscosity and the volume of a fluid related by an uncertainty relation?

commented Jun 4, 2019 in Open problems by anonymous

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1 answer 1877 views

Violation of Virial theorem as indication to ergodicity breaking

answered Jan 23, 2019 in Open problems by Void (1,645 points)

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0 answers 1413 views

Proposed experimental cosiderations of a micro-mechanical oscilator in a superposition state

commented Jan 16, 2019 in Open problems by anonymous

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1 answer 3539 views

The greatest quadruple moment

commented Dec 1, 2018 in Open problems by igael (360 points)

+ 0 like - 2 dislike

1 answer 1842 views

Does size matter to relativity?

answered Sep 5, 2018 in Open problems by mathnphys (0 points)

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0 answers 3475 views

Why is the standard model wrong?

comment edited Apr 4, 2018 in Open problems by Arnold Neumaier (15,797 points)

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0 answers 1452 views

How to integrate when zero is in denominator?

asked Apr 3, 2018 in Open problems by nick_name (0 points)

+ 2 like - 1 dislike

0 answers 1319 views

How to proof that a gamma matrix is a 1-tensor

asked Mar 25, 2018 in Open problems by anonymous

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0 answers 1255 views

Is the ground state of the Kitaev model approximately a singlet?

edited Feb 18, 2018 in Open problems by Aztec (15 points)

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0 answers 1819 views

What is the future of causal structure: Domains or wiring diagrams?

asked Nov 24, 2017 in Open problems by bensprott (35 points)

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1 answer 2153 views

Replica Trick for Bimodal Disorder Distribution

answered Jun 27, 2017 in Open problems by TDowning (55 points)

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0 answers 1793 views

Discovery of anti-deuteron and the implication of CPT violation

edited Mar 21, 2017 in Open problems by wonderich (1,500 points)

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0 answers 1482 views

Efimov effect in QCD

retagged Mar 20, 2017 in Open problems by anonymous

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0 answers 1495 views

(Zoo of) Phase transitions in SUSY gauge theories

edited Mar 11, 2017 in Open problems by wonderich (1,500 points)

+ 7 like - 0 dislike

1 answer 2224 views

Boundary correlations in the 2D Ising model: a 50-year-old open problem

answer edited Nov 21, 2016 in Open problems by Yvan Velenik (1,110 points)

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1 answer 6126 views

What are the limitations of the superspace formalism?

recategorized Aug 16, 2016 in Open problems by Dilaton (6,240 points)

+ 5 like - 0 dislike

0 answers 2444 views

Higgs as toponium bootstrap?

comment edited May 11, 2016 in Open problems by Mitchell Porter (1,950 points)

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0 answers 1248 views

Color Confinement under Color charge dipole and quadrupole moments

edited Sep 24, 2015 in Open problems by CharlesJQuarra (555 points)

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1 answer 3316 views

Why Are Even and Odd Regge Trajectories Degenerate?

recategorized Aug 28, 2014 in Open problems by dimension10 (1,985 points)

+ 8 like - 0 dislike

1 answer 13644 views

Exotic spheres in string/M-theory

answered Jul 17, 2014 in Open problems by Urs Schreiber (6,085 points)

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