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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Graduate Normal frequencies of vibration of a molecule
- kthouz
- · Replies 12 ·
Graduate Vacuum Energy: same inside a rock?
- rrw4rusty
- · Replies 15 ·
Graduate Is the Speed of an Anti Photon Really -186,000 Miles/Second?
- cangus
- · Replies 27 ·
Graduate Special cases of the Schroedinger Eq?
- ManDay
- · Replies 2 ·
Graduate Is Physical Contact Really Possible or Just an Illusion of Forces?
- madhatter106
- · Replies 1 ·
Graduate Unit of plank constant in the calculation of tunneling probability
- Flyyoung
- · Replies 1 ·
Graduate Solving Scattering Problem: Get Help with Phase Shift Delta
- ftft
- · Replies 4 ·
Graduate QED 1-Loop Renormalization Group Equation
- rkrsnan
- · Replies 2 ·
Graduate How does combining spin result in the total spin angular momentum number?
- mk_gm1
- · Replies 5 ·
High School How to observe interference patterns with a simple experiment?
- onqun
- · Replies 4 ·
Graduate Transferring bits using the square well
- msumm21
- · Replies 10 ·
Graduate Interpreting operators in second quantization
- Niles
- · Replies 8 ·
Graduate Wavelength Less Than Planck Length?
- LarryS
- · Replies 15 ·
Graduate Quantum Chemistry: Dickson Dip in Spectroscopy
- Nusc
- · Replies 3 ·
Graduate Anderson Localization: Decoherence Explanation?
- Descartz2000
- · Replies 3 ·
Graduate Why is the vacuum normalised to 1?
- madness
- · Replies 3 ·
Graduate Interesting equivalent to Schrödinger equation
- Gigasoft
- · Replies 5 ·
Graduate Feynman Path Integral's Meaning
- jaketodd
- · Replies 30 ·
Graduate 2 electrons in box, hard walls, total energy E.
- Spinnor
- · Replies 2 ·
Graduate The wavelength of the virtual photons of the Coulomb force
- diagopod
- · Replies 6 ·
Graduate When to use H when to use U(H)?
- raisin_raisin
- · Replies 3 ·
Graduate Can Momentum and Spin Be Measured Simultaneously?
- haael
- · Replies 6 ·
Graduate Is there a universal equation for all spin-2 particles?
- RedX
- · Replies 2 ·
Graduate How can spin-2 be represented as a tensor?
- conway
- · Replies 9 ·
Graduate Is Light a Wave or a Particle?
- FireBones
- · Replies 17 ·
Graduate Mixed State QM: Unpacking the Non-Diagonal Density Matrix
- daneshvar
- · Replies 1 ·
Graduate Position & Momentum: Detectors, Measurements & Identifiers
- jaketodd
- · Replies 35 ·
Graduate Zero-point energy, dark energy and space
- Jean Paul
- · Replies 6 ·
Graduate Exploring the Mystery of Blackbody Radiation: A Quantum Conundrum
- LocationX
- · Replies 25 ·
Graduate Probability Density or Expectation Value?
- LarryS
- · Replies 1 ·
Graduate Number of vibrations in a photon
- bunburryist
- · Replies 21 ·
Graduate Programming Binary Addition with a Turing Machine
- theophyman
- · Replies 4 ·
Undergrad Does Hydrogen's one electron spin?
- Moviemann345
- · Replies 9 ·
Graduate Angular Momentum: Deriving S_z Expression
- Nusc
- · Replies 7 ·
Graduate Question on negative temperature
- luxiaolei
- · Replies 7 ·
Graduate Effect for time lag in quantum erasure?
- madison
- · Replies 2 ·
Graduate Question about the experimental behavior of entangled particles.
- waymore
- · Replies 4 ·
Graduate Understanding Quantum Theory: A Beginner's Guide to Particle Physics
- GreatBigBore
- · Replies 68 ·
Graduate Differentials, pseudo-differentials, and locality
- jostpuur
- · Replies 1 ·
Graduate Electron two slit experiment with gradual collapse ?
- birulami
- · Replies 5 ·
Graduate Electron Transitions: Superposition of States
- ed2288
- · Replies 3 ·
Graduate Particle in a box with one finite wall and one infinite wall
- EnSlavingBlair
- · Replies 4 ·
Graduate Different representations of SU3 and resultant multiplets
- metroplex021
- · Replies 3 ·
Graduate Questions about Heisenberg's Uncertainty Principle & Vacuum Energy
- zoque999
- · Replies 35 ·
Graduate When the electron prob wave spreads what happens to the electron?
- LostConjugate
- · Replies 8 ·
Graduate Time noninvariance in quantum physics
- kvladimir
- · Replies 22 ·
Graduate What are the fundamental equations of Quantum Mechanics?
- libbon
- · Replies 3 ·
Graduate How Do Fermion and Scalar Fields Interact in Lorentz Invariant Terms?
- neworder1
- · Replies 1 ·
Graduate Free Field Vacuum: What Does It Correspond To?
- Neitrino
- · Replies 7 ·
Graduate Theoretical Quantum Entanglement Question
- Theheretic
- · Replies 3 ·
High School Electron Movement: Understand Orbit Around Nuclies
- clm321
- · Replies 5 ·
Graduate London- vs Josephson penetration depth
- daudaudaudau
- · Replies 1 ·
Graduate What potential can model interactions at boundary walls?
- Gerenuk
- · Replies 4 ·
Graduate Wavelength of Proton: Kinetic Energy = Internal Energy
- skym
- · Replies 1 ·
Graduate Freaky Physics Proves Parallel Universes Exist
- pallidin
- · Replies 36 ·
Graduate Why is the formula for Compton scattering not affected by binding energy?
- LocationX
- · Replies 2 ·
Graduate Measuring momentum in a square well
- thoughtgaze
- · Replies 2 ·
Graduate What prevents quantum fluctuations from resulting in new universes?
- dicon
- · Replies 1 ·
Graduate Renormalization of Logarithmic divergences
- zetafunction
- · Replies 1 ·
Undergrad Help Layman Understand EM Wave Propagation
- Theheretic
- · Replies 3 ·
Graduate What good resources are there to learn about physics
- mdavis86
- · Replies 4 ·
Graduate Proving Interaction picture field satisfies KG eqn
- LAHLH
- · Replies 12 ·
Graduate Measuring Photon Force on a Sensitive Scale
- Benzeen
- · Replies 8 ·
Graduate Relevance of supersymmetric quantum mechanics?
- arroy_0205
- · Replies 1 ·
Graduate The state of magnetism and its possible correlation to gravity
- slowfiveoh
- · Replies 1 ·
Graduate What Makes Ferromagnetic Materials Unique in Quantum Magnetism?
- RestlessMind
- · Replies 2 ·
Graduate Electron Tunneling & Waveguides: A Formal Analogy
- tzihan88
- · Replies 1 ·
Graduate Entanglement correlations, singlet spin state
- msumm21
- · Replies 33 ·
Graduate Article says slow light caused by absorption/re-emission?
- thenewmans
- · Replies 1 ·
Graduate Explore the Concept of Density Matrix with Jensa: A Comprehensive Guide
- barnflakes
- · Replies 1 ·
Graduate Trouble understanding matter as waves
- khkwang
- · Replies 12 ·
Graduate Identical Fermions in an infinite square well
- msumm21
- · Replies 2 ·
Graduate Global SU(N) Symmetry and Complex Scalar Invariance
- isospin
- · Replies 1 ·
Graduate Spherically symmetric potential and spherical harmonics
- msumm21
- · Replies 5 ·
Graduate Observer types to make the wavefunction collapse.
- Hellabyte
- · Replies 5 ·
Graduate Understanding Operator Equation in Quantum Mechanics
- chrisphd
- · Replies 14 ·
Graduate Unitary Operator on a Tensor Product
- barnflakes
- · Replies 3 ·
Undergrad Alternative Explanation for Double Slit Interference
- vin300
- · Replies 1 ·
Graduate Point-like particles, form factors
- hmm.max
- · Replies 1 ·
Graduate Warping spacetime, parrallel universes
- alice87368
- · Replies 1 ·
Graduate Pauli Matrices in higher dimensions
- Kazza_765
- · Replies 2 ·
Graduate Background that particles sit in
- Plaster
- · Replies 2 ·
Undergrad What can you talk about quantum mechanics?
- Readinglevel^
- · Replies 10 ·
Graduate Teleportation: Scientific research
- gordonisnz
- · Replies 1 ·
Graduate How would one collapse a molecular wavefunction?
- exmachina
- · Replies 1 ·
Graduate Schrodinger solution to hamilton-jacobi
- Identity
- · Replies 2 ·
Graduate How does one type of detector determine path of photon?
- enduril
- · Replies 13 ·
Graduate Problem with complex conjugates and the Time Independent Schrodinger equation
- randybryan
- · Replies 2 ·
Graduate Theoretically Destroying a Black Hole
- Varine
- · Replies 1 ·
Graduate CP-volation -> violation of 2nd law of thermodynamics?
- Dmitry67
- · Replies 24 ·
Undergrad Why these four 2p orbital electrons have higher energy state configuration?
- boladore
- · Replies 6 ·
Graduate Quantum effects Photosynthesis
- offroff
- · Replies 8 ·
Graduate Calculating Phase Space Volume for Canonical Ensemble
- mkbh_10
- · Replies 1 ·
Graduate Why does decoherence not fully solve the measurement problem?
- kexue
- · Replies 119 ·
Graduate What is the significance of the scalar output in Hamiltonian action?
- Identity
- · Replies 6 ·
Graduate How to count on-shell DoF of a gauge theory?
- ismaili
- · Replies 1 ·
Graduate Statistical mechanics of antiparticles
- RedX
- · Replies 10 ·
Graduate A quantity from schrodinger
- Identity
- · Replies 2 ·
Graduate Enforced symmetry in multi-electron problems
- LeonhardEuler
- · Replies 5 ·
Undergrad Help with Electron-configuration
- abotiz
- · Replies 3 ·