Recent questions in Theoretical Physics

+216 votes

0 answers

Can particles with opposite spins be found in identical states?

asked Jan 18, 2022 in Theoretical Physics by JPCxxooxx

+2 votes

0 answers

Do subatomic particles exist? If so, why can't we see them?

asked Jan 18, 2022 in Theoretical Physics by George dovey

+26 votes

0 answers

Is dark energy an attribute of empty space?

asked Jan 18, 2022 in Theoretical Physics by jabberwock95

+11 votes

0 answers

Why do we need to consider gravity in a quantum theory if it is the weakest force of nature?

asked Jan 18, 2022 in Theoretical Physics by Phil_from_London

+296 votes

0 answers

What do you think the benefits of dark energy would be?

asked Jan 18, 2022 in Theoretical Physics by owen

+6 votes

0 answers

How do we reconcile the theory of relativity with quantum mechanics to create a unified theory of physics?

asked Jan 18, 2022 in Theoretical Physics by HELP! (2.8k points)

+25 votes

0 answers

If a position and velocity have opposite signs, the particle is moving towards the origin. How is this so?

asked Jan 17, 2022 in Theoretical Physics by sus

+28 votes

0 answers

In QFT, why is there no position operator for photons and why does that mean they don't have wavefunctions, unlike electrons and other massive particles?

asked Jan 17, 2022 in Theoretical Physics by SolarisScribe

+17 votes

0 answers

Am I capable of doing a PhD in theoretical physics?

asked Jan 17, 2022 in Theoretical Physics by MTHEAD

+5 votes

0 answers

17. Reading "Neutron State Solution of Dongfang Modified Dirac Equation", is this epoch-making paper of XD Dongfang not enough to set off a revolution in theoretical physics?

asked Jan 17, 2022 in Theoretical Physics by timeyell

+5 votes

0 answers

What's the difference between applied mathematics and mathematical physics?

asked Jan 17, 2022 in Theoretical Physics by Kelly Burrows

+8 votes

0 answers

Are there infinitesimal (extremelly small) probabilities in quantum mechanics which go completely down to zero in the mathematical model of quantum field theory?

asked Jan 17, 2022 in Theoretical Physics by Chrispy83

+12 votes

0 answers

What is the difference between quantum mechanics and quantum field theory? What are some applications of both?

asked Jan 17, 2022 in Theoretical Physics by LuminousDreamer

+195 votes

0 answers

What does it mean for an eigenvalue to be stable or unstable?

asked Jan 17, 2022 in Theoretical Physics by M3016R

+318 votes

0 answers

Can black holes and dark matter interact?

asked Jan 17, 2022 in Theoretical Physics by Enda Kelly

+113 votes

0 answers

What does negative dimension mean as spatial dimension, what does it mean, is it like spatial dimension or completely different? And what is negative dimension in superstring theory?

asked Jan 17, 2022 in Theoretical Physics by Indiana Jones

+7 votes

0 answers

What happened to quantum gravity research after Stephen Hawking's work and the end of string theory?

asked Jan 17, 2022 in Theoretical Physics by widespreadwindbound

+7 votes

0 answers

As used by physicists, what is the best definition of “dimension?”

asked Jan 17, 2022 in Theoretical Physics by George Jay

+55 votes

0 answers

Why do we need to assume that particles have a definite position or speed when applying quantum mechanics?

asked Jan 17, 2022 in Theoretical Physics by Mickel

+15 votes

0 answers

Is a theory of everything possible? Can there be a singular, all-encompassing, coherent theoretical framework of physics that fully explains everything we see in the universe, and all aspects of the universe?

asked Jan 17, 2022 in Theoretical Physics by Christheone

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