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Quantum Physics Forum

Join in expert discussion on quantum physics. Quantum physics is the mathematical description of the motion and interaction of subatomic particles. Quantum Mechanics and Field Theory.

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Quantum Interpretations and Foundations

Carroll interviews Barandes on Indivisible Stochastic QM

1.3K threadsYesterday, 10:28 PM

Undergrad Carroll interviews Barandes on Indivisible Stochastic QM

Yesterday, 10:28 PM

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High School Does light lose any any energy in a vacuum?

Red monkey
Nov 25, 2011 · Replies 1 · Nov 25, 2011

Replies: 1

Graduate Need a book that explains linear vector space

trex
Nov 25, 2011 · Replies 1 · Nov 25, 2011

Replies: 1

Graduate Pesking & Schroeder Eqn 3.18 (Lorentz algebra)

DivergentMind
Nov 22, 2011 · Replies 7 · Nov 25, 2011

Replies: 7

Graduate Updates on Penrose Quantum Mirror Experiment

stglyde
Nov 23, 2011 · Replies 3 · Nov 25, 2011

Replies: 3

Graduate Pauli Matrices: Calculating Expression

Amok
Nov 24, 2011 · Replies 3 · Nov 24, 2011

Replies: 3

Graduate Misunderstanding about measuring the spin of the electron

micromass
Nov 11, 2011 · Replies 21 · Nov 24, 2011

Replies: 21

Graduate Scattering theory - Regular solution

personperson
Nov 23, 2011 · Replies 6 · Nov 24, 2011

Replies: 6

Graduate Is light a photon or a wave? (concrete question)

nonequilibrium
Nov 23, 2011 · Replies 3 · Nov 24, 2011

Replies: 3

Graduate Help Solve a Puzzling Two-Level Atom Problem

Arturs C.
Nov 16, 2011 · Replies 2 · Nov 24, 2011

Replies: 2

Graduate Are Units Truly Fundamental in Physics According to Duff's Theory?

exponent137
Nov 23, 2011 · Replies 1 · Nov 24, 2011

Replies: 1

Graduate Do Gravitons Attract Other Gravitons?

mjacobsca
Jun 5, 2009 · Replies 4 · Nov 23, 2011

Replies: 4

Graduate Can neutrons be used to stablize other particles?

Quasitrium
Aug 9, 2005 · Replies 10 · Nov 23, 2011

Replies: 10

Graduate Is the following correct about virtual particles

thenewguy1
Nov 22, 2011 · Replies 3 · Nov 23, 2011

Replies: 3

Graduate Hamiltonian with position spin coupling

yuanyuan5220
Nov 23, 2011 · Replies 1 · Nov 23, 2011

Replies: 1

Graduate How Virtual Particles Give Rise to the electromagnetic force

AustinLee
Nov 1, 2011 · Replies 2 · Nov 23, 2011

Replies: 2

Graduate Wigner Matrix or Wigner D-Matrix?

TheDestroyer
Nov 23, 2011 · Replies 2 · Nov 23, 2011

Replies: 2

Undergrad Do Electrons Behave Like Bar Magnets?

gespex
Nov 22, 2011 · Replies 2 · Nov 23, 2011

Replies: 2

Graduate Poker Entanglement: Is Quantum Mechanics the Key to Winning?

NetMage
Nov 22, 2011 · Replies 1 · Nov 23, 2011

Replies: 1

Graduate Electronic Excitation: Absorbing and Re-emitting Photons

AlKindi
Nov 17, 2011 · Replies 8 · Nov 23, 2011

Replies: 8

Graduate Entanglement & GR: Can We Measure Universe Info?

mjames
Nov 18, 2011 · Replies 13 · Nov 22, 2011

Replies: 13

Graduate Feynman's QED: Is it Still Relevant Today?

KingBigness
Nov 19, 2011 · Replies 28 · Nov 22, 2011

Replies: 28

Graduate Are wave functions and quantum waves synonyms?

stglyde
Nov 17, 2011 · Replies 6 · Nov 22, 2011

Replies: 6

Undergrad LS Coupling Scheme Explained - Get Help Now

ohhhnooo
Feb 22, 2005 · Replies 3 · Nov 22, 2011

Replies: 3

Undergrad Alpha Decay from Uranium: Electrical or Strong Nuclear Force?

IWantToLearn
Nov 17, 2011 · Replies 5 · Nov 21, 2011

Replies: 5

Graduate A Bell Theorem with no locality assumption?

DrChinese
Aug 13, 2010 · Replies 79 · Nov 21, 2011

3

Replies: 79

Graduate New (apparent) confirmation of virtual particles.

danR
Nov 19, 2011 · Replies 21 · Nov 21, 2011

Replies: 21

Graduate Is biological life a product of a probability wave

paradigm64
Nov 21, 2011 · Replies 1 · Nov 21, 2011

Replies: 1

Graduate Quantum fluctuations and momentum

e2m2a
Nov 21, 2011 · Replies 1 · Nov 21, 2011

Replies: 1

Graduate Virtual particles and quantum fluctuation

No-where-man
Sep 9, 2011 · Replies 25 · Nov 21, 2011

Replies: 25

Undergrad Phonon vs Photon: What's the Difference?

Nucengable
Nov 19, 2011 · Replies 13 · Nov 21, 2011

Replies: 13

Graduate Physical significance of normalizing a wave function?

saravanan13
Nov 20, 2011 · Replies 3 · Nov 21, 2011

Replies: 3

Graduate Quantization of vector field in the Coulomb gauge

diracologia
Nov 20, 2011 · Replies 4 · Nov 21, 2011

Replies: 4

Graduate The double slit and wave particle nature.

Hunt307
Nov 20, 2011 · Replies 1 · Nov 20, 2011

Replies: 1

Graduate What is the definition of particle(s) in QM?

nonequilibrium
Nov 19, 2011 · Replies 2 · Nov 20, 2011

Replies: 2

Graduate Electric charge in quantum field theory

paweld
Nov 20, 2011 · Replies 1 · Nov 20, 2011

Replies: 1

Graduate Square of modified Dirac equation

cbetanco
Nov 20, 2011 · Replies 2 · Nov 20, 2011

Replies: 2

Graduate Where in physics does randomness occur?

Jarfi
Nov 20, 2011 · Replies 1 · Nov 20, 2011

Replies: 1

Graduate Stability of Unstable Particles at High Energies: Third Generation

a dull boy
Nov 19, 2011 · Replies 1 · Nov 19, 2011

Replies: 1

Graduate Calculating Vacuum Fields at Different Frequencies

vivek.iitd
Nov 6, 2011 · Replies 1 · Nov 19, 2011

Replies: 1

Graduate Is True Randomness Possible in Our Determined Universe?

kelolasin
Nov 14, 2011 · Replies 25 · Nov 18, 2011

Replies: 25

Graduate Typo error or correct wavefunction?

Thunder_Jet
Nov 15, 2011 · Replies 5 · Nov 18, 2011

Replies: 5

Graduate What is the explanation for the sequence in the Mandl QFT textbook (p.53)?

intervoxel
Nov 17, 2011 · Replies 4 · Nov 18, 2011

Replies: 4

Graduate Why Is Spin-Orbit Coupling Selective in Phosphorescence Transitions?

Gavroy
Nov 17, 2011 · Replies 2 · Nov 18, 2011

Replies: 2

Undergrad I am trying to figure out how to refer to two overlapping uncertainty

golfz
Nov 12, 2011 · Replies 1 · Nov 18, 2011

Replies: 1

Graduate Propagator for matrix fields (based on Srednicki ch80, p490)

LAHLH
Nov 16, 2011 · Replies 1 · Nov 18, 2011

Replies: 1

Graduate Observation Techniques: Brian Green's NOVA Show & Quantum Physics

elassoto
Nov 17, 2011 · Replies 4 · Nov 18, 2011

Replies: 4

Graduate Expectation value of a product of operators

ryanwilk
Nov 17, 2011 · Replies 3 · Nov 17, 2011

Replies: 3

Graduate How to form a picture in mind of coherent state?

luxiaolei
Nov 17, 2011 · Replies 2 · Nov 17, 2011

Replies: 2

Graduate Speed of transmission in quantum entanglement

San K
Nov 16, 2011 · Replies 6 · Nov 17, 2011

Replies: 6

Graduate Fate and Schrodinger's Equation

cbetanco
Nov 14, 2011 · Replies 4 · Nov 17, 2011

Replies: 4

Graduate Schrodinger's Cat - your opinions

xDAW
Nov 9, 2011 · Replies 3 · Nov 17, 2011

Replies: 3

Graduate Schrödinger equation in momentum space and number of solutions

xebtl2
Nov 15, 2011 · Replies 3 · Nov 17, 2011

Replies: 3

Graduate Stress energy tensor in extended standard model

cbetanco
Nov 16, 2011 · Replies 2 · Nov 17, 2011

Replies: 2

Graduate Partial Trace Q: Meaning & Info Explained

McLaren Rulez
Nov 16, 2011 · Replies 5 · Nov 17, 2011

Replies: 5

Graduate Is there an interference pattern within a non-interference pattern?

San K
Nov 16, 2011 · Replies 1 · Nov 16, 2011

Replies: 1

Graduate Can the 'shape' of the universe be described at the Plank scale?

BobCastleman
Nov 15, 2011 · Replies 14 · Nov 16, 2011

Replies: 14

Graduate EPR and Lorentz transformation

currojimenez
Nov 2, 2011 · Replies 13 · Nov 16, 2011

Replies: 13

Graduate Are super-operators always writable in a basis independent form?

spocchio
Nov 16, 2011 · Replies 1 · Nov 16, 2011

Replies: 1

Graduate Debunking the Existence and Duration of Virtual Particles

byron178
Jun 12, 2011 · Replies 301 · Nov 16, 2011

11

Replies: 301

Graduate What Does h.c. Signify in Quantum Mechanics Formulas?

phonon44145
Nov 14, 2011 · Replies 3 · Nov 15, 2011

Replies: 3

Graduate Can Free Particle Have Sharp Energy?

LarryS
Nov 15, 2011 · Replies 3 · Nov 15, 2011

Replies: 3

Graduate How is spin rotation measured?

gespex
Nov 15, 2011 · Replies 3 · Nov 15, 2011

Replies: 3

Graduate How to arrive at Bessel function solution to 1D polynomial potential

Peeter
Nov 15, 2011 · Replies 1 · Nov 15, 2011

Replies: 1

Graduate Why Hermitian instead of self-adjoint?

kof9595995
Apr 15, 2011 · Replies 20 · Nov 15, 2011

Replies: 20

Graduate Why are identical particles indistinguishable?

nonequilibrium
Nov 8, 2011 · Replies 21 · Nov 14, 2011

Replies: 21

Graduate Question on observer of double-split experiment

Lukas_23
Nov 10, 2011 · Replies 15 · Nov 14, 2011

Replies: 15

Graduate Quantum mechanics question regarding jam.

homnath
Nov 14, 2011 · Replies 1 · Nov 14, 2011

Replies: 1

Graduate Quantum physics in three sentences?

batmanmg
Nov 8, 2011 · Replies 64 · Nov 14, 2011

3

Replies: 64

Graduate Quantum communication with extraterrestrials

rs422a
Nov 14, 2011 · Replies 2 · Nov 14, 2011

Replies: 2

Graduate Uncountable infinite dimensional Hilbert space

r-rashidi
Jul 6, 2005 · Replies 30 · Nov 14, 2011

2

Replies: 30

Graduate Quantum Mechanics and General Relativity

Zerko
Nov 11, 2011 · Replies 2 · Nov 14, 2011

Replies: 2

Graduate Wave Function Collapse: Atom's Non-Stable State

nouveau_riche
Nov 12, 2011 · Replies 2 · Nov 14, 2011

Replies: 2

High School Does the Principal Quantum Number Refer to the Electron Shell?

Bashyboy
Nov 13, 2011 · Replies 2 · Nov 13, 2011

Replies: 2

Undergrad Comparing Uncertainty of Two Results in Conclusion

golfz
Nov 12, 2011 · Replies 3 · Nov 13, 2011

Replies: 3

Graduate Experimental confirmation of indistinguishability of identical particles?

Xverse
Nov 11, 2011 · Replies 4 · Nov 13, 2011

Replies: 4

Graduate Fermion-Boson Question: Why Different Positions?

Black Integra
Nov 10, 2011 · Replies 4 · Nov 12, 2011

Replies: 4

Graduate Amplitude - photon correspondence

ComputerPsi
Nov 12, 2011 · Replies 1 · Nov 12, 2011

Replies: 1

Graduate On spinor representations and SL(2,C)

teddd
Nov 12, 2011 · Replies 9 · Nov 12, 2011

Replies: 9

Graduate What should we use to express free particle in Quantum Mechanics?

Karmerlo
Oct 21, 2011 · Replies 13 · Nov 12, 2011

Replies: 13

Graduate Understanding De Broeglie Wavelength & Electron Orbits

Shark 774
Nov 11, 2011 · Replies 3 · Nov 12, 2011

Replies: 3

Graduate Grilling the Double Slit Experiment

richerrich
Oct 27, 2011 · Replies 17 · Nov 11, 2011

Replies: 17

Graduate Is quantum physics a growing field in the future?

Violinist
Nov 8, 2011 · Replies 2 · Nov 11, 2011

Replies: 2

Graduate Hawking Radiation's Virtual Particles?

rollcast
Nov 10, 2011 · Replies 4 · Nov 11, 2011

Replies: 4

Graduate Explanation for the Fountain effect in superfluids

BobGom
Apr 14, 2010 · Replies 2 · Nov 11, 2011

Replies: 2

Graduate Why saying Quantum Mechanics is pillar of QFT?

ndung200790
Nov 10, 2011 · Replies 4 · Nov 11, 2011

Replies: 4

Graduate Relativistic correction to quantum mechanical system

Dilema
Nov 8, 2011 · Replies 2 · Nov 11, 2011

Replies: 2

Graduate Hamiltonian describing energy transfer to bloch Electron from EM field

dkin
Nov 11, 2011 · Replies 1 · Nov 11, 2011

Replies: 1

Graduate Understanding Spin and Magnetic Field in Electrons: Explained

Gavroy
Nov 9, 2011 · Replies 8 · Nov 11, 2011

Replies: 8

Graduate Landau quantization of cyclotron orbit

xaratustra
Nov 10, 2011 · Replies 2 · Nov 11, 2011

Replies: 2

Graduate Can you make a definition of velocity in QM ?

gurhkn
Nov 4, 2011 · Replies 17 · Nov 10, 2011

Replies: 17

Graduate 2 Q's on Quantum Stat Mech: why only eigenvalues, why dE

nonequilibrium
Nov 4, 2011 · Replies 12 · Nov 10, 2011

Replies: 12

Graduate Uncertainty principle, virtual particle pairs and energy

Darkmisc
Nov 10, 2011 · Replies 3 · Nov 10, 2011

Replies: 3

Graduate Question about Quantum Computers

AustinLee
Nov 9, 2011 · Replies 1 · Nov 10, 2011

Replies: 1

Undergrad Who First Plotted the Spectral Radiancy Curve and When?

i_island0
Nov 10, 2011 · Replies 1 · Nov 10, 2011

Replies: 1

Graduate Probability waves - instant infinite extent?

ihatelolcats
Nov 9, 2011 · Replies 3 · Nov 10, 2011

Replies: 3

Graduate Eigenvaules and quantum numbers

khemist
Nov 7, 2011 · Replies 8 · Nov 9, 2011

Replies: 8

Graduate Light polarization vs photons spin

maxverywell
Nov 5, 2011 · Replies 20 · Nov 9, 2011

Replies: 20

Graduate SU(N) symmetry in harmonic oscillator

tom.stoer
Nov 9, 2011 · Replies 3 · Nov 9, 2011

Replies: 3

Graduate Question related to quantization of the magnetic field

fluidistic
Nov 2, 2011 · Replies 1 · Nov 9, 2011

Replies: 1

Graduate I need just ONE analytic solution to the time-dependent Schrodinger Equation.

IronHamster
Nov 8, 2011 · Replies 1 · Nov 8, 2011

Replies: 1

sidebar

Quantum Physics

Quantum physics, or quantum mechanics, is a branch of physics that explores the behavior of matter and energy at the smallest scales, where classical physics principles break down. It introduces the concept of quantization, suggesting that certain properties, such as energy levels, are quantized and can only exist in discrete values.

Quantum mechanics encompasses wave-particle duality, where particles like electrons exhibit both wave and particle characteristics. The theory is probabilistic, relying on probability amplitudes to predict outcomes, and features phenomena like superposition, where particles can exist in multiple states simultaneously.

Quantum physics has transformed our understanding of the microscopic world, leading to technologies like transistors and lasers, and continues to provoke profound questions about the nature of reality and the role of observation in shaping it.

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