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 Mathematically what causes wavefunction collapse?
- Superposed_Cat
- · Replies 129 ·
Graduate Lee Smolin Real Ensemble I. questions
- kye
- · Replies 2 ·
Graduate Are Eigenstates of a Wavefunction Entangled?
- matrixrising
- · Replies 29 ·
Graduate Energy of an Infinite Square Well
- TBW
- · Replies 13 ·
Graduate Why do we conjugate operators in QFT?
- gentsagree
- · Replies 3 ·
Graduate Nonlinear Optics: Split Method & Results
- eahaidar
- · Replies 7 ·
Graduate Expectation value of a hermitian operator prepared in an eigenstate
- Dixanadu
- · Replies 1 ·
Graduate Not understanding cosmological constant in field theory
- geoduck
- · Replies 3 ·
Graduate What is the relationship between creation and annihilation operators in k-space?
- Trave11er
- · Replies 4 ·
Graduate Van del waals interaction in qm
- alejandrito29
- · Replies 1 ·
Graduate Is chirality dependent on the representation of the gamma matrices?
- AlbertEi
- · Replies 2 ·
Graduate Quantum Principles of Quantum Computers
- kye
- · Replies 2 ·
Graduate Intuition behind superposition probabilities?
- sciencegem
- · Replies 14 ·
Graduate Understanding Dirac Notation in Quantum Mechanics
- phyky
- · Replies 6 ·
Graduate Understanding Potential Energy in QM
- leinadle
- · Replies 5 ·
Graduate Can measuring photon direction predict which slit it passes through?
- glederfein
- · Replies 2 ·
Graduate Gauge forces and internal symmetries
- kye
- · Replies 9 ·
Graduate Is Heisenbergs uncertainty principle valid?
- edguy99
- · Replies 8 ·
Graduate Free particle wavefunction represent a fixed profile= wavepacket?
- Outrageous
- · Replies 2 ·
Graduate Schrödinger theory, bunch of questions
- fede.na
- · Replies 2 ·
Graduate Expectation value for non commuting operator
- phyky
- · Replies 12 ·
Graduate What does it mean to quantize a field
- copernicus1
- · Replies 4 ·
Graduate Has Wave Function Collapse Been Verified Experimentally ?
- Point Conception
- · Replies 1 ·
Graduate When do electrons display wave properties in the double slit experiment?
- Sunil.Iyengar
- · Replies 10 ·
Graduate What is the relationship between proton and electron spin in atoms?
- zincshow
- · Replies 2 ·
Graduate Quantum harmonics oscillator at high temperature
- alejandrito29
- · Replies 3 ·
Graduate What is wavefunction in the time-dependent schrodinger equation?
- goodphy
- · Replies 6 ·
Graduate Conservation of angular momentum (central force)
- HAMJOOP
- · Replies 3 ·
Graduate Coherent States: Ʃ(|α|2)n = 1?
- Hazzattack
- · Replies 3 ·
Graduate Time-dependent SE for 'discrete' time steps
- DougD720
- · Replies 1 ·
Graduate Photons as virtual particles in High energy
- da_steve
- · Replies 22 ·
Graduate Entangled Particles: Can They Be Distinguished?
- Learningd
- · Replies 2 ·
Graduate How to determine the product of two Hermitian operators is Hermitian
- lonewolf219
- · Replies 7 ·
Graduate Could element 137 electrons become superluminal in a retrocausal atom?
- Superposed_Cat
- · Replies 4 ·
Graduate Combine Hamiltonians of two different bases
- TheDestroyer
- · Replies 13 ·
Graduate Why are wavefunctions represented as eigenvectors?
- Superposed_Cat
- · Replies 11 ·
Graduate Why all the clinging to locality?
- greypilgrim
- · Replies 96 ·
Graduate Using Quantum Dots for Single Photon Creation in Lab Research
- Xyius
- · Replies 8 ·
Graduate Pauli's exclusion principle
- Ravi Mohan
- · Replies 2 ·
Graduate How do you find the vibration frequency of a molecule like melanin?
- Dakai
- · Replies 3 ·
Graduate Where to learn the matrix formulation of QM
- Superposed_Cat
- · Replies 3 ·
Graduate What causes the electron spin collapse
- USeptim
- · Replies 13 ·
Graduate Feynman Lectures and Uncertainty Principle
- forcefield
- · Replies 6 ·
Graduate Are Bound States Always Entangled in Quantum Mechanics?
- metroplex021
- · Replies 1 ·
Graduate Simple electron recoil question
- johne1618
- · Replies 7 ·
Graduate Interaction between wavefunction of two particles
- San K
- · Replies 16 ·
Graduate Solving [H,x] Operator Algebra
- FarticleFysics
- · Replies 2 ·
Graduate Contractions of indices of the 4-vectors
- nikol
- · Replies 2 ·
Graduate The phrase, predictions of quantum mechanics
- hiddenvariable
- · Replies 22 ·
Graduate Why is wave/particle duality so hard to imagine?
- cytochrome
- · Replies 7 ·
Graduate Open Problems in Interplay between QM & 2nd Law of Thermodynamics?
- Geremia
- · Replies 3 ·
Graduate Phrase 'the field is in [certain] representation of a [certain] group'
- Stan324
- · Replies 2 ·
Graduate Has this experiment been done?
- StevieTNZ
- · Replies 2 ·
Graduate Emission of photons by vibrational relaxation of molecules
- ns_phonon
- · Replies 12 ·
Graduate What does 0 amplitude mean in waves and quantum physics?
- MathewsMD
- · Replies 5 ·
Graduate Direct calculation of the propagator
- SamuraiJack
- · Replies 3 ·
Graduate What is the physical meaning for a particle in harmonic oscillator ?
- Outrageous
- · Replies 11 ·
Graduate Rotation and Boost Commutating on the Same Axis
- JordanGo
- · Replies 3 ·
Graduate Understanding N-point Correlation Functions in Particle Scattering Processes
- copernicus1
- · Replies 3 ·
Graduate Why can you only contract one field in the Wilson approach to renormalization?
- nikol
- · Replies 3 ·
Graduate Uncertainty principle asymmetric with respect to time?
- bcrelling
- · Replies 7 ·
Undergrad Why do electrons need probability orbitals but nuclei don't?
- Elpinetos
- · Replies 2 ·
Graduate Adding Angular Momentum is commutative, right?
- TheDestroyer
- · Replies 4 ·
Graduate Can Two Photons Really Form Bound States?
- Claustral
- · Replies 4 ·
Undergrad Why are waves represented as complex numbers?
- Superposed_Cat
- · Replies 10 ·
Graduate Why sum for Casimir effect between plates but integral without them
- epislon58
- · Replies 2 ·
Graduate Double delta function potential: two bound states vs one ?
- Aziza
- · Replies 2 ·
Graduate Difference between EM field excitation modes and their energy differences in QED
- lightarrow
- · Replies 5 ·
Undergrad Probability rate of calculation
- Simontmitchell
- · Replies 2 ·
Graduate Unbound particle through potential
- omiros
- · Replies 1 ·
Graduate Hamiltonian matrix off diagonal elements?
- TheDestroyer
- · Replies 4 ·
Graduate Why can't fermions have coherent states like bosons do?
- ShayanJ
- · Replies 9 ·
Graduate Do photons carry more than energy, momentum and angular momentum?
- jarekd
- · Replies 44 ·
Graduate Where is the boundary between quantum and classical mechanics?
- alexay95
- · Replies 11 ·
Graduate Where to start learning the Schrödinger equation
- Superposed_Cat
- · Replies 18 ·
Graduate Is Velocity in Quantum Mechanics Meaningless?
- hokhani
- · Replies 6 ·
Undergrad Feynman lectures and electron path
- forcefield
- · Replies 1 ·
Graduate Many Particle in a one dimensional box
- dev70
- · Replies 5 ·
Graduate Rotation of Spin Operator and Vector in 3D Space
- jk22
- · Replies 1 ·
Graduate What Is the Physical Significance of Planck Units and Their Derivation?
- jbar18
- · Replies 4 ·
Graduate UP regarding value of a field and its rate of change
- Suwailem
- · Replies 5 ·
Graduate Sommerfeld uncertainty principle
- arivero
- · Replies 1 ·
Graduate Antimatter Why does it annhiliate on contact with ordinary matter?
- Superposed_Cat
- · Replies 4 ·
Graduate Is the Number of Colors in QCD Limited to Just 3?
- stevendaryl
- · Replies 5 ·
Graduate Entanglement to speak faster than light
- friend
- · Replies 15 ·
High School Confusing that light is the only wave that doesn't move through
- xirow
- · Replies 7 ·
Graduate Why does particle size affect EM radiation scattering
- Justin Hawk
- · Replies 2 ·
Graduate Equations in arXiv paper 0003044 on electromagnetic theory
- moekuba
- · Replies 2 ·
Graduate Ehrenfest theorem, is there any condition for the operator Q?
- Outrageous
- · Replies 7 ·
Graduate Do moving slits affect the double-slit experiment?
- StevieTNZ
- · Replies 5 ·
Graduate Finding the operators for time derivatives of observables
- snoopies622
- · Replies 1 ·
Graduate Why time is not an observable in quantum theory?
- rpt
- · Replies 137 ·
Graduate How to understand the off-diagonal elements
- phdphysics
- · Replies 2 ·
Graduate Gaussian Integrals for Quantum States of well Defined Momentum
- lukka
- · Replies 10 ·
Graduate Finding the separable state for Bell inequality violations below π/4
- greypilgrim
- · Replies 6 ·
Graduate Where does kinetic energy come from when an electron falls between hydrogen energy levels?
- bobie
- · Replies 23 ·
Graduate How Does Hawking Radiation Influence the Black Hole Information Paradox?
- Superposed_Cat
- · Replies 18 ·
Graduate Does rotating a Bell measurement device 180° affect locality?
- greypilgrim
- · Replies 5 ·
High School Information carrued by photons.
- medgalis
- · Replies 1 ·
Undergrad Applying the Fourier transform in quantum mechanics
- Radarithm
- · Replies 4 ·