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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

Emergence of Time from Quantum Interaction with the Environment

1.3K threadsToday, 2:33 PM

Graduate Emergence of Time from Quantum Interaction with the Environment

Today, 2:33 PM

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Undergrad Coincedence Counter in Double Slit Experiment?

Jamesc320010
May 26, 2011 · Replies 1 · May 26, 2011

Replies: 1

High School What is the shape of an electron?

phoenixankit
Oct 20, 2007 · Replies 44 · May 26, 2011

2

Replies: 44

Graduate Non-abelian Gauge invariance (chapter 15.1 in Peskin/Schroeder)

Stalafin
May 25, 2011 · Replies 3 · May 25, 2011

Replies: 3

Graduate Virtual particles and Gauss's Law

PeterPumpkin
May 25, 2011 · Replies 3 · May 25, 2011

Replies: 3

Graduate An integral in Srednicki's book

nklohit
May 25, 2011 · Replies 4 · May 25, 2011

Replies: 4

Graduate Why is quantum so fundamental?

Kherubin
May 23, 2011 · Replies 30 · May 25, 2011

2

Replies: 30

Undergrad Diodes, transistors and valves

DaTario
May 24, 2011 · Replies 2 · May 25, 2011

Replies: 2

Graduate Dirac Delta Function vs probability distribution

pibomb
Oct 7, 2006 · Replies 15 · May 25, 2011

Replies: 15

Graduate What will be the final conclusion?

nouveau_riche
May 24, 2011 · Replies 6 · May 25, 2011

Replies: 6

Graduate Can SO(3) be used for Poincare spacetime symmetry in the standard model?

lkwarren01
May 23, 2011 · Replies 3 · May 25, 2011

Replies: 3

Graduate Is Planck Charge Related to the Fine-Structure Constant and Plank's Constant?

nuby
Mar 23, 2009 · Replies 3 · May 24, 2011

Replies: 3

Graduate Lorentz transformations on Spinors

Illuminatum
May 22, 2011 · Replies 3 · May 24, 2011

Replies: 3

Graduate Why connected correlation function depends on (x-y) only when <Phi(x)> equal constant

ndung200790
May 23, 2011 · Replies 6 · May 24, 2011

Replies: 6

Undergrad What is the shape of a photon's electric and magnetic fields?

CosmicVoyager
May 24, 2011 · Replies 6 · May 24, 2011

Replies: 6

Graduate Why is G-2 of Lande Factor Positive?

Ancient_Nomad
May 24, 2011 · Replies 2 · May 24, 2011

Replies: 2

Graduate Question: Minimum uncertainty in ground state electrons

ck_ong
May 24, 2011 · Replies 2 · May 24, 2011

Replies: 2

Graduate Why does methane obscure CO2 absorption in IR spectroscopy?

Scott Gray
May 23, 2011 · Replies 3 · May 24, 2011

Replies: 3

Graduate Understanding Quantum Circuit Jaynes-Cummings Model

narekm
May 24, 2011 · Replies 1 · May 24, 2011

Replies: 1

Graduate Do Free Electrons Emit or Absorb Photons?

CosmicVoyager
May 23, 2011 · Replies 6 · May 24, 2011

Replies: 6

Graduate How does a microwave antenna emit individual photons?

CosmicVoyager
May 23, 2011 · Replies 6 · May 24, 2011

Replies: 6

Graduate Virtual particles and screening of charges

PeterPumpkin
May 24, 2011 · Replies 1 · May 24, 2011

Replies: 1

Graduate What does this quantum dot diagram represent?

McCloud
May 22, 2011 · Replies 4 · May 23, 2011

Replies: 4

Graduate A fermion oscillator interacted with a boson oscillator

dhg19861106
May 22, 2011 · Replies 8 · May 23, 2011

Replies: 8

Graduate Z component of spin angular momentum quantum number values

LostConjugate
May 23, 2011 · Replies 4 · May 23, 2011

Replies: 4

Graduate Hydrogen atom - complete orthornormal set

QuantumCosmo
May 8, 2011 · Replies 15 · May 23, 2011

Replies: 15

Graduate How Does the 3-Sphere Map to the Bloch Sphere in Quantum Mechanics?

Kreizhn
May 23, 2011 · Replies 2 · May 23, 2011

Replies: 2

Graduate Thinking Outside The Box About Existence.

ANT_SB
May 21, 2011 · Replies 3 · May 23, 2011

Replies: 3

Graduate Can absence of hidden variables save locality?

Demystifier
May 19, 2011 · Replies 57 · May 23, 2011

2

Replies: 57

Graduate What does B_{[ij} B'_{kl]} mean for bivectors?

naima
May 23, 2011 · Replies 3 · May 23, 2011

Replies: 3

Graduate Does the breakdown of the wave function need a concsious observer?

cezalinho
May 23, 2011 · Replies 3 · May 23, 2011

Replies: 3

Graduate Is Perturbative Theory Meaningless in Some Cases Despite Small Interaction?

ndung200790
May 13, 2011 · Replies 3 · May 23, 2011

Replies: 3

Graduate Generalized commutation relations

jfy4
May 4, 2011 · Replies 10 · May 23, 2011

Replies: 10

Graduate Does Wave Structure Study Include Heisenberg Uncertainty Principle?

nouveau_riche
May 22, 2011 · Replies 2 · May 23, 2011

Replies: 2

Graduate Suppose there are say 50 observers,each observing the same particle

nouveau_riche
May 22, 2011 · Replies 2 · May 23, 2011

Replies: 2

Graduate Max Born's 1926 Paper: Probability Amplitude Interpretation and Controversy

Varon
May 23, 2011 · Replies 2 · May 23, 2011

Replies: 2

Graduate What Are the Best Mathematical Introductions to Yang-Mills Theory?

paweld
May 22, 2011 · Replies 4 · May 23, 2011

Replies: 4

Graduate Doesn't Electron Configuration Prove The Universe Has Three Dimensions

dimensionless
Mar 19, 2011 · Replies 8 · May 21, 2011

Replies: 8

Graduate How long does it take for a valence electron being excited to conduction band?

zhterran
May 21, 2011 · Replies 1 · May 21, 2011

Replies: 1

Graduate Normalizing a wave function, what does it mean?

romsofia
Feb 22, 2011 · Replies 14 · May 21, 2011

Replies: 14

Graduate Double slit Scattering explanation

Varon
May 19, 2011 · Replies 4 · May 21, 2011

Replies: 4

Graduate Quantum Computing: Recent Developments and Resources

dfp10
May 21, 2011 · Replies 1 · May 21, 2011

Replies: 1

Graduate Matching conditions for solutions to the Schrodinger equation

AxiomOfChoice
May 21, 2011 · Replies 4 · May 21, 2011

Replies: 4

Graduate How do you explain the Heisenberg uncertainty principle?

hamsa0
May 20, 2011 · Replies 8 · May 21, 2011

Replies: 8

High School What should I know about quantum physics before class?

ugur0072
May 18, 2011 · Replies 16 · May 20, 2011

Replies: 16

Graduate What's the highest spin known?

asierraalta7
May 19, 2011 · Replies 8 · May 20, 2011

Replies: 8

Undergrad Integer Spin and Half Spin: What's the Difference? (Bosons vs. Fermions)

lamba89
May 20, 2011 · Replies 4 · May 20, 2011

Replies: 4

Graduate Is the spin of a photon necessarily parallel or antiparallel to its momentum?

Zarathustra0
May 18, 2011 · Replies 7 · May 20, 2011

Replies: 7

Graduate Independent virtual particle after mind experiment annihilation

NoelyG
May 17, 2011 · Replies 5 · May 19, 2011

Replies: 5

Graduate Adding a 3rd Polarizer Changes Light Passing Through It

thenewmans
May 19, 2011 · Replies 8 · May 19, 2011

Replies: 8

Graduate Special case of angular momentum components simultaneous knowledge

LostConjugate
May 19, 2011 · Replies 7 · May 19, 2011

Replies: 7

Graduate Single particle Interference – Photon Vs Electron Vs Buckyball

San K
May 18, 2011 · Replies 9 · May 19, 2011

Replies: 9

Graduate Observing which-way for fullerene molecules (buckyball)

San K
May 19, 2011 · Replies 3 · May 19, 2011

Replies: 3

Graduate How much negative energy is that space between two non-conducting plates?

Negeng
May 19, 2011 · Replies 1 · May 19, 2011

Replies: 1

Graduate Entanglement more primary than Spacetime?

Varon
May 18, 2011 · Replies 11 · May 19, 2011

Replies: 11

Graduate Magnetostatic Spin Wave: Wave Modulation in Ferromagnetic Medium

saravanan13
May 19, 2011 · Replies 2 · May 19, 2011

Replies: 2

Graduate Can opposite quantum states with exchangeable results relate to entanglement?

mixter
Apr 25, 2011 · Replies 3 · May 19, 2011

Replies: 3

Graduate The Myth of Wave-Particle Duality

Varon
May 17, 2011 · Replies 64 · May 19, 2011

3

Replies: 64

Graduate Variable pairs in uncertainty relation?

Nemus
May 18, 2011 · Replies 4 · May 19, 2011

Replies: 4

Graduate DCQE - inserting eraser after s is detected

San K
May 19, 2011 · Replies 1 · May 19, 2011

Replies: 1

Graduate Is Planck's constant a paradox?

ribbie
May 17, 2011 · Replies 8 · May 19, 2011

Replies: 8

Graduate How Can Signal Models Resolve the EPR Paradox in Special Relativity?

Anamitra
May 6, 2011 · Replies 68 · May 19, 2011

3

Replies: 68

Undergrad Looking for info on Bremsstrahlung

Divided_Pi
May 18, 2011 · Replies 2 · May 19, 2011

Replies: 2

Graduate Normalisation of a Wavefunction

misslondonuk
May 17, 2011 · Replies 11 · May 19, 2011

Replies: 11

Graduate Solving Eigenvalue Problems: Choosing Eigenvectors

WannabeNewton
May 18, 2011 · Replies 2 · May 18, 2011

Replies: 2

Graduate Completeness of Eigenfunctions

andyc10
May 19, 2009 · Replies 11 · May 18, 2011

Replies: 11

Graduate Expansion around a classical vacuum

GargleBlast42
May 15, 2011 · Replies 4 · May 18, 2011

Replies: 4

Graduate Elementary Hilbert space concepts/definitions.

Lavabug
May 18, 2011 · Replies 2 · May 18, 2011

Replies: 2

Graduate Neutron and Photon interaction

apj_anshul
May 18, 2011 · Replies 1 · May 18, 2011

Replies: 1

Graduate Have fullerene molecules been (quantum) entangled yet?

San K
May 17, 2011 · Replies 2 · May 18, 2011

Replies: 2

Graduate Science Research Project- Quantum Physics

apetrillo14
May 13, 2011 · Replies 5 · May 17, 2011

Replies: 5

Graduate Query regarding representations and Clebsch-Gordan series

ComeInSpinor
Apr 22, 2011 · Replies 6 · May 17, 2011

Replies: 6

Graduate Which programming language for simulating quantum algorithms

apetrillo14
May 15, 2011 · Replies 6 · May 17, 2011

Replies: 6

Graduate Commutation relations (maths)

dextercioby
May 14, 2011 · Replies 12 · May 17, 2011

Replies: 12

Graduate Two electron relativistic corrections to PE

qsa
May 16, 2011 · Replies 11 · May 17, 2011

Replies: 11

Graduate Co-relation between interference and polarization

San K
May 16, 2011 · Replies 3 · May 17, 2011

Replies: 3

Graduate Implications of Quantum Eraser, Delayed Choice, etc.

rodsika
Apr 21, 2011 · Replies 35 · May 17, 2011

2

Replies: 35

Graduate Instantaneous Particle Decisions: Why Isn't the Property Set Upon Splitting?

LeeJeffries
May 16, 2011 · Replies 7 · May 17, 2011

Replies: 7

Undergrad Double Slit Experiment - radioactive particles

ProTerran
May 13, 2011 · Replies 12 · May 17, 2011

Replies: 12

Graduate Why does a blackbody spectrum peak at a specific wavelength?

semiserious
May 16, 2011 · Replies 1 · May 16, 2011

Replies: 1

Graduate Schrodinger-Operator equation and control

Kreizhn
May 11, 2011 · Replies 1 · May 16, 2011

Replies: 1

Graduate Is partial collapse possible in quantum mechanics? Can you provide an example?

Varon
May 15, 2011 · Replies 9 · May 16, 2011

Replies: 9

Graduate Are these matrix definitions correct for the Dirac equation?

Orion1
May 15, 2011 · Replies 5 · May 16, 2011

Replies: 5

Graduate Direction of electron's total magnetic dipole moment

wumple
Apr 18, 2011 · Replies 3 · May 16, 2011

Replies: 3

Graduate Virtual particles in rigorous quantum field theory

mattt
May 14, 2011 · Replies 2 · May 16, 2011

Replies: 2

Graduate Can an alternate Muonic Helium model be created with one electron and one muon?

jfy4
May 13, 2011 · Replies 4 · May 16, 2011

Replies: 4

Graduate Why doesn't spin commute with the Dirac Hamiltonian?

metroplex021
Apr 14, 2011 · Replies 8 · May 16, 2011

Replies: 8

Graduate Particle picture is misleading. True?

Varon
May 13, 2011 · Replies 21 · May 15, 2011

Replies: 21

Graduate Is there evidence for Zurek's quantum darwinism model?

ThisIsMyName
Jun 4, 2010 · Replies 3 · May 15, 2011

Replies: 3

Graduate Kenneth miller thinks god exists in quantum mechanics

vjk2
May 9, 2011 · Replies 116 · May 15, 2011

4

Replies: 116

Graduate Determinism from periodic dynamics?

Halcyon-on
Apr 17, 2009 · Replies 6 · May 15, 2011

Replies: 6

Graduate Does learning QM diminish enjoyment of physics?

annms
May 15, 2011 · Replies 1 · May 15, 2011

Replies: 1

Graduate Do nonlocal deterministic QM theories violate the speed of light?

SeventhSigma
May 13, 2011 · Replies 2 · May 15, 2011

Replies: 2

Graduate Why is positronium unstable compared to the stable hydrogen atom?

StateOfTheEqn
May 14, 2011 · Replies 2 · May 14, 2011

Replies: 2

Graduate Quantum Vacuum before the big bang?

petersaysstuf
May 11, 2011 · Replies 4 · May 14, 2011

Replies: 4

Graduate Are double slit detectors all electron based?

Varon
May 10, 2011 · Replies 11 · May 14, 2011

Replies: 11

Graduate Why does quantum mechanics appear random if the universe is deterministic?

revo74
May 8, 2011 · Replies 9 · May 13, 2011

Replies: 9

Graduate Why do Lorentz group representations like (1/2,0) correspond to spinors?

Yaelcita
May 12, 2011 · Replies 9 · May 13, 2011

Replies: 9

Graduate How Does Detector Rotation Affect Spin Correlation in Bell's Test Experiments?

cragar
May 8, 2011 · Replies 99 · May 13, 2011

4

Replies: 99

Graduate What is after QM Core and before QFT?

LostConjugate
May 12, 2011 · Replies 4 · May 13, 2011

Replies: 4

Graduate Continuous eigenstates vs discrete eigenstates

giova7_89
May 7, 2011 · Replies 34 · May 13, 2011

2

Replies: 34

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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