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.

Threads

Graduate Can Self-Study Clarify Basic Quantum Mechanics Concepts?

  • Saketh
  • · Replies 3 ·
Replies
3

Graduate Does quantum pair creation violate conservation of energy?

  • CosmologyHobbyist
  • · Replies 15 ·
Replies
15

Graduate Can Entanglement Challenge Our Understanding of Measurement and Simultaneity?

  • ptabor
  • · Replies 5 ·
Replies
5

High School Does Light Have Mass or Is It Just Energy?

  • David_Harkin
  • · Replies 2 ·
Replies
2

Graduate Central Potential: Eigenstates Depend on Coordinates

  • NeoDevin
  • · Replies 3 ·
Replies
3

Graduate DOes the trace determine the Hamiltonian

  • tpm
  • · Replies 3 ·
Replies
3

Graduate N=2 Supersymmetric Quantum Mechanics

  • quantumdude
  • · Replies 14 ·
Replies
14

Graduate How Do Commutation Relations Fit into the Concept of a Lie Algebra?

  • Physiana
  • · Replies 2 ·
Replies
2

Graduate Explicit formula the nth eigenfunctions of the quantum harmonic oscillator?

  • quasar987
  • · Replies 8 ·
Replies
8

Graduate How Does Size Influence Quantum Phenomena?

  • MetalBunnyLove
  • · Replies 4 ·
Replies
4

High School Position of elementary particles

  • Helicobacter
  • · Replies 3 ·
Replies
3

Graduate Solution to nonlinear field equations

  • wandering.the.cosmos
  • · Replies 1 ·
Replies
1

Graduate Phase of an Amplitude Function

  • chessforce
  • · Replies 4 ·
Replies
4

Graduate Probability of classically forbidden region

  • qwertgg
  • · Replies 1 ·
Replies
1

Graduate Physical significance of othogonality condition?

  • sruthisupriya
  • · Replies 4 ·
Replies
4

Graduate How Does the Speed of Light Reflect?

  • gonzo
  • · Replies 13 ·
Replies
13

Graduate Composite Hilbert Spaces and Operators

  • ArjSiv
  • · Replies 5 ·
Replies
5

Graduate Eigenfunctions in Hilbert Space, Infinite Square Wells and Uncertainty

  • neo2478
  • · Replies 2 ·
Replies
2

Undergrad Particle Stream/Beams: Possible Proton & Neutron Streaming?

  • Dominisi
  • · Replies 1 ·
Replies
1

Graduate Relation between spin and its magnetic field

  • BeauGeste
  • · Replies 4 ·
Replies
4

Graduate Looking for introduction on QND: quantum non-demolition measurements

  • lalbatros
  • · Replies 1 ·
Replies
1

Graduate What is the theoretical proof of the quantization of the energy of the EM field?

  • Abu Abdallah
  • · Replies 2 ·
Replies
2

Graduate Do the Particle and Associated Wave Always Move in the Same Direction?

  • bernhard.rothenstein
  • · Replies 1 ·
Replies
1

Graduate What is a "structure-less particle"?

  • PhillipKP
  • · Replies 8 ·
Replies
8

Graduate Definition for the term gauge symmetry

  • alphaone
  • · Replies 15 ·
Replies
15

Graduate Theoretical Limit on Frequency?

  • Swapnil
  • · Replies 13 ·
Replies
13

Graduate An attempt to the Unified Theory of Physics.

  • Hymne
  • · Replies 2 ·
Replies
2

Graduate How does TDPT handle time dependent perturbations?

  • quasar987
  • · Replies 3 ·
Replies
3

Graduate My fundamental misunderstandings of quantum mechanics

  • alsey42147
  • · Replies 13 ·
Replies
13

Graduate Two experiments on the Wave-Particle duality

  • Hans de Vries
  • · Replies 26 ·
Replies
26

Undergrad Does photon have upper limit energy ?

  • magnetar
  • · Replies 5 ·
Replies
5

Graduate Hermitian Operators: Meaning & Showing Properties

  • sunsun
  • · Replies 4 ·
Replies
4

Graduate Bremsstrahlung near the cutoff frequency, experimental data

  • lalbatros
  • · Replies 3 ·
Replies
3

Graduate Probability in relation to distance

  • Sumo
  • · Replies 10 ·
Replies
10

Graduate QM: Ladder Operators Explained Step-by-Step

  • sillystring
  • · Replies 11 ·
Replies
11

Graduate Questions concerning Decoherence and Entanglement

  • regent
  • · Replies 34 ·
2
Replies
34

Graduate Conditional probabilities in QM

  • Mike2
  • · Replies 11 ·
Replies
11

Undergrad Can Noble Gases Be Combined for More Vibrant Colors?

  • Loren Booda
  • · Replies 1 ·
Replies
1

Undergrad Bohr radius for single electron orbits

  • xiankai
  • · Replies 2 ·
Replies
2

Graduate How Can Static Fields Be Effectively Handled in Quantum Field Theory?

  • lalbatros
  • · Replies 1 ·
Replies
1

High School Alternative Realities: Physics Project Help

  • fe208
  • · Replies 2 ·
Replies
2

Graduate And another one on Lorentz invariance

  • alphaone
  • · Replies 7 ·
Replies
7

Graduate Info in nanotechnology, optical tweezers

  • njoi
  • · Replies 4 ·
Replies
4

Graduate Relation between symmetry, charges and one-particle states

  • alphaone
  • · Replies 1 ·
Replies
1

Graduate Understanding Quantum Symmetry Breaking

  • alphaone
  • · Replies 1 ·
Replies
1

Graduate Eigenfunctions of Excited States: Why Orthogonal?

  • n0_3sc
  • · Replies 2 ·
Replies
2

Graduate Wave particle duality confusion

  • madness
  • · Replies 12 ·
Replies
12

Graduate Rigorous Determination of Bosonic and fermoinic commutation relation

  • ClubDogo
  • · Replies 1 ·
Replies
1

Graduate Delayed Choice Quantum Erasure

  • captainmack
  • · Replies 3 ·
Replies
3

Graduate Solve Ernest S. Abers problems

  • hmhm696
  • · Replies 5 ·
Replies
5

Graduate Bohr Model missing momentum question

  • ianbell
  • · Replies 8 ·
Replies
8

Conan - Conan and Jim Carrey Talk Quantum Physics

  • paul_peciak
  • · Replies 3 ·
Replies
3

Graduate Energy levels for the Hydrogen Atom

  • ClubDogo
  • · Replies 3 ·
Replies
3

Graduate Quantum Mechanics: Dealing With Forces on Particles

  • pivoxa15
  • · Replies 17 ·
Replies
17

Graduate Parallel Universes and Quantum Computing

  • McHeathen
  • · Replies 1 ·
Replies
1

Graduate Another one on Lorentz Invariance

  • alphaone
  • · Replies 3 ·
Replies
3

Graduate Is quantum mechanics applicable to blackholes?

  • james1234567890
  • · Replies 5 ·
Replies
5

Undergrad Talk about electrons, double slit, interface patterns

  • WiccanSpirit
  • · Replies 4 ·
Replies
4

Graduate Proof that FTL communication quantum protocol is impossible?

  • Euclid's rat
  • · Replies 3 ·
Replies
3

Graduate Photoelectric effect: a recreative quiz

  • lalbatros
  • · Replies 2 ·
Replies
2

Graduate Measuring particle position and velocity

  • Zinite
  • · Replies 1 ·
Replies
1

Graduate Eigenvalues of J_2 + K_1; -J_1 + K_2

  • wandering.the.cosmos
  • · Replies 1 ·
Replies
1

Graduate Derive SE: Wave Packets, Time Evo. Op, First Principles

  • Thrice
  • · Replies 29 ·
Replies
29

Graduate Planck's oscillators and the energy assumption

  • Saketh
  • · Replies 2 ·
Replies
2

Graduate Bell experiment would somehow prove non-locality and information FTL?

  • heusdens
  • · Replies 303 ·
11
Replies
303

Graduate Can the wavefunction of a particle determine its position in space?

  • cristian1500
  • · Replies 15 ·
Replies
15

Graduate Questions Concerning Static and Dynamic Properties

  • Tryon11
  • · Replies 4 ·
Replies
4

Graduate What Are the Mysteries of Wave-Particle Duality and Measurement?

  • paul_peciak
  • · Replies 3 ·
Replies
3

Graduate Cheating a faster than light signal.

  • Jimmy Snyder
  • · Replies 19 ·
Replies
19

Graduate Probability in Quantum Mechanics

  • Japa
  • · Replies 3 ·
Replies
3

Undergrad Infrared Heating: How It Works

  • anantchowdhary
  • · Replies 1 ·
Replies
1

Undergrad Energy of Electron: Is it Possible?

  • anantchowdhary
  • · Replies 12 ·
Replies
12

Graduate Photon Self-Interference: Just a Misunderstanding?

  • pmb_phy
  • · Replies 27 ·
Replies
27

High School How is quantum physics applied in our daily lives?

  • fonkem
  • · Replies 7 ·
Replies
7

Graduate Unraveling the Mysteries of Light, Time, and Dimensions

  • Osirus1156
  • · Replies 5 ·
Replies
5

Graduate Probability conservation and symmetry

  • domhal
  • · Replies 6 ·
Replies
6

Graduate Gravity a result of procession of time?

  • marlberg
  • · Replies 15 ·
Replies
15

Graduate What happens to the Kinetic Energy during tunneling?

  • prtcool
  • · Replies 10 ·
Replies
10

High School I am very new to quantum physics. Want to know how photons move.

  • anantchowdhary
  • · Replies 11 ·
Replies
11

Foundations of Physics, the magazine, open access articles.

  • Hans de Vries
  • · Replies 3 ·
Replies
3

Graduate Ether before relativity in quantum theory also

  • jostpuur
  • · Replies 1 ·
Replies
1

Graduate Is D-Wave's quantum computer the real deal?

  • fargoth
  • · Replies 6 ·
Replies
6

Graduate Stern Gerlach Experiment, Simple Question

  • DoctorMO
  • · Replies 23 ·
Replies
23

Undergrad Unraveling the Mystery of Photon Motion: E=hf Explained

  • anantchowdhary
  • · Replies 9 ·
Replies
9

Graduate What is electron spin and intrinsic spin of elementary particles?

  • anantchowdhary
  • · Replies 14 ·
Replies
14

Graduate An electron's wave properties?

  • jse7
  • · Replies 9 ·
Replies
9

Graduate Producing EB Waves: Accelerating and Decelerating Particles

  • jse7
  • · Replies 1 ·
Replies
1

Graduate Calculation Showing M_mu_nu Representation of Lorentz Generators

  • alphaone
  • · Replies 3 ·
Replies
3

Graduate The role of wave function in QED

  • Quantum River
  • · Replies 67 ·
3
Replies
67

Graduate What's the difference between probability and probability density

  • Newbie says Hi
  • · Replies 5 ·
Replies
5

Undergrad Where Can I Find a Quality Online Intro to Quantum Mechanics?

  • Ragnar
  • · Replies 2 ·
Replies
2

Graduate What Role Do Calabi-Yau Spaces Play in String Theory?

  • Chaos' lil bro Order
  • · Replies 10 ·
Replies
10

Graduate Hi, can i know two phenomena related to quantum physics ?

  • matt222
  • · Replies 2 ·
Replies
2

Is a Quantum Computer Possible? A Critical Look at Recent Claims

  • Thrice
  • · Replies 2 ·
Replies
2

Graduate Why is a QM wave function not normalizable

  • Ed Quanta
  • · Replies 2 ·
Replies
2

Graduate Why does quantum mechanics not marry with the theroy of relativity

  • Schrodinger's Dog
  • · Replies 21 ·
Replies
21

Undergrad Schrödinger's cat paradox explaination

  • ARR0624
  • · Replies 7 ·
Replies
7

Graduate Basic - Trying to understand a probability wave

  • FrogPad
  • · Replies 1 ·
Replies
1

Undergrad Is there a Limit to How Cold Matter Can Get?

  • JPC
  • · Replies 12 ·
Replies
12

Graduate Canonical Bose-Einstein statistics

  • quetzalcoatl9
  • · Replies 3 ·
Replies
3