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 About solving differential equations
- ice109
- · Replies 1 ·
Graduate Experimental evidence for Hydrogen Wave Function?
- Shenckel
- · Replies 1 ·
Graduate Can the Pauli Exclusion Principle explain the quantization of the nucleus?
- nuclear420
- · Replies 4 ·
Graduate A way aroung determining which-paths in interference patterns?
- Gothican
- · Replies 11 ·
Graduate What determines the metric around solid objects made of particles?
- wolram
- · Replies 11 ·
Graduate Does quantum physics prove that nothing is completely random?
- Green Zach
- · Replies 7 ·
Graduate What is Time Ordered Product T(AB) at Equal Times?
- zombiegirl
- · Replies 2 ·
Graduate What does <ψn|A|ψm> mean for different wavefunctions?
- jbb
- · Replies 2 ·
Graduate Quatum Fields, Strings, and Parallel Universe
- redhedkangaro
- · Replies 2 ·
Graduate Best way to answer beginner questions about quantum mechanics
- Dmitry67
- · Replies 1 ·
Graduate Basis set orthonormality property
- filippo
- · Replies 1 ·
Graduate Basic questions on quantum scattering
- hiyok
- · Replies 8 ·
Graduate Why study the QED vertex if 4-momentum conservation forbids it
- RedX
- · Replies 2 ·
Graduate Why isolated eigenvalues have normalizable eigenstates
- jostpuur
- · Replies 7 ·
High School Question: Protons and Neutrons Popping into and out of existance
- TreeofSkills
- · Replies 2 ·
Graduate Does the potential change as an electron moves within an atom?
- granpa
- · Replies 1 ·
Graduate Why doesn't the Electron crash into the proton in an H atom?
- feynmann
- · Replies 51 ·
Graduate Wave function and spatial phase factor
- jostpuur
- · Replies 21 ·
Graduate What is the Meaning of [J1,J2] = 0 in the Addition of Angular Momenta?
- tommy01
- · Replies 4 ·
Graduate Incandescence and energy bands
- monstersaurou
- · Replies 1 ·
Graduate Spectral theory in quantum mechanics
- guhan
- · Replies 3 ·
Graduate Are probability waves real and does wave collapse respect relativity?
- Charlie G
- · Replies 3 ·
Graduate Does energy-time uncertainty follow from Heisenberg's uncertainty principle?
- filippo
- · Replies 6 ·
Undergrad What is a magnetic field composed of?
- Charlie G
- · Replies 4 ·
Undergrad How does light show particle properties?
- markoX
- · Replies 5 ·
Graduate Energy becoming mass? Wilczek question
- Quantum_Grid
- · Replies 2 ·
Graduate How do forces work in quantum mechanics if matter has wave-particle duality?
- cam875
- · Replies 4 ·
Graduate Why don't electrons crash into the nucleus?
- cam875
- · Replies 14 ·
Graduate Wave-particle duality and electromagnetic waves
- JKaufinger
- · Replies 10 ·
Graduate Measure invariance under unitary transformation in functional integrals
- jdstokes
- · Replies 2 ·
Graduate What is the relationship between rest energy and frequency in quantum mechanics?
- LarryS
- · Replies 3 ·
Graduate How do photon-electron transitions relate to frequency and motion?
- SdogV
- · Replies 3 ·
Graduate Understand Uncertainty Principle in Computer Simulations
- cam875
- · Replies 17 ·
Graduate Construction of a Hilbert space and operators on it
- Fredrik
- · Replies 3 ·
Graduate What Are the Hidden Variables Behind Photon Wave Function Collapse?
- nutgeb
- · Replies 9 ·
Graduate Scattered states and bound states ?
- hiphys
- · Replies 2 ·
Undergrad Can Atoms Produce Photons Through Electron Excitation?
- Haibara Ai
- · Replies 3 ·
Graduate Why is zero-point energy finite for a quantum harmonic oscillator?
- NJV
- · Replies 6 ·
Graduate Size of a photon's electromagnetic field
- nutgeb
- · Replies 13 ·
Graduate How can the Heisenberg formula be proven in simple terms?
- NJV
- · Replies 3 ·
Graduate Why does strong magnetic field destroy spherical symmetry of atom?
- xfshi2000
- · Replies 2 ·
Graduate How are spin matrices constructed for S=5/2 systems?
- Rajini
- · Replies 30 ·
Graduate Moment of inertia tensor of an electron?
- tiny-tim
- · Replies 3 ·
Graduate Why can't a man in the middle attack intercept quantum cryptography?
- MrGamma
- · Replies 22 ·
Graduate Spacetime states in Rovelli's book Quantum Gravity
- naima
- · Replies 1 ·
Graduate How did Planck come up with 'h'?
- Potentiator
- · Replies 26 ·
Graduate Why Bell's inequality predicts 50% agreement between entangled spins
- Gothican
- · Replies 10 ·
High School How can a atom generate photons ?
- live4physics
- · Replies 11 ·
Graduate How can bosons like pions be made of fermions if they have opposite properties?
- electerr
- · Replies 9 ·
Undergrad How Do Quantum Numbers Shape Atomic Structure?
- cam875
- · Replies 5 ·
Graduate What does off-diagonal term mean?
- physlad
- · Replies 1 ·
Graduate What's wrong with my Schrodinger equation?
- tpg
- · Replies 8 ·
Graduate What is Local U(1) Gauge-Invariance and its role in electromagnetism?
- sudhirking
- · Replies 11 ·
Graduate Oscillation in Charged Particles
- sudhirking
- · Replies 2 ·
Undergrad What energy do electrons actually take in an orbital?
- feynmann
- · Replies 8 ·
Graduate Probability of a wave function
- soul
- · Replies 3 ·
Graduate What is the generalization of the BAC-CAB rule for operators?
- maverick280857
- · Replies 4 ·
Graduate Can Bosons and Leptons Coexist in Same Space?
- Haibara Ai
- · Replies 1 ·
Graduate Casimir Effect - min. distance between plates
- Dmitry67
- · Replies 4 ·
Graduate Reasons for natural occuring forces
- sudhirking
- · Replies 20 ·
Graduate Phase and signal velocity of light inside a medium
- lightarrow
- · Replies 6 ·
Graduate Is a proton's movement considered a subject of Quantum Mechanics?
- karkas
- · Replies 5 ·
Graduate Where are the anti-particles in a nuclie?
- sudhirking
- · Replies 10 ·
Graduate Why do electrons jump energy levels without passing through intermediate states?
- sudhirking
- · Replies 6 ·
Graduate Is Teleportation Mathematically or Theroretically Possible
- Sammyg
- · Replies 3 ·
Graduate A question from Weinberg's qft book
- bugl0ver
- · Replies 5 ·
Graduate Planck's Constant Related to Velocity of Light?
- LarryS
- · Replies 5 ·
Graduate Electromagnetic Force: Where Does Virtual Photon Get Its Energy?
- spidey
- · Replies 3 ·
Graduate Hartree-Fock Method vs. Configuration Interaction
- filippo
- · Replies 1 ·
Graduate Does Pauli's Exclusion Principle Prevent Atoms from Coexisting in Stars?
- Strang3r
- · Replies 2 ·
Undergrad Two Slit Experiment Setup and Variables
- benk99nenm312
- · Replies 1 ·
Graduate Reasons for phtonic radiation?
- sudhirking
- · Replies 2 ·
Graduate Symmetric/Antisymmetric states in nature?
- hendriko373
- · Replies 6 ·
Graduate Why Hamiltonian and L^2 Don't Commute in Linear Molecules
- filippo
- · Replies 1 ·
Graduate Understanding of double silts experiment
- LittleRocks
- · Replies 1 ·
Undergrad Molecular term symbols for quantum states
- filippo
- · Replies 1 ·
Graduate How is entropy defined by boundary area in Holographic Principle?
- skeleton
- · Replies 1 ·
Graduate Is the Casimir Effect the Same for Insulators as for Metals?
- spidey
- · Replies 4 ·
Undergrad Hartree & Hartree-Fock: What's the Difference?
- filippo
- · Replies 1 ·
Graduate How to reduce QED to QM using creation/annihilation operators
- tim_lou
- · Replies 14 ·
Graduate Wave function and orbital question
- f24u7
- · Replies 3 ·
Graduate A single photon traveling in space
- Mr Peanut
- · Replies 8 ·
Graduate Why do interpretations of quantum mechanics try to be deterministic?
- Phrak
- · Replies 22 ·
Graduate How Does a Delta Potential Affect Bound States in a Quantum Infinite Well?
- KFC
- · Replies 3 ·
Graduate What is a wave packet in quantum physics?
- abhi sharma
- · Replies 3 ·
Graduate What do the symbols in quantum equations mean?
- electrogluon
- · Replies 8 ·
Graduate Could space-time be a property of matter in string theory?
- nuby
- · Replies 2 ·
Graduate Why reflection and transmission probabilities add up in Feynman's QED
- eliben
- · Replies 6 ·
Graduate Can I Tell if a State is Ground State?
- KFC
- · Replies 5 ·
Graduate What's actually happening in the photovoltaic effect
- Tam Hunt
- · Replies 13 ·
Graduate Can we model quantum particle behavior as probability microwaves in a waveguide?
- BARRYPHYSICS
- · Replies 2 ·
Undergrad Single photon and the double slit
- IlyaZ
- · Replies 20 ·
Graduate Negative energy in Dirac theory
- feynmann
- · Replies 8 ·
Undergrad What path do electrons actually take in an orbital
- Cheman
- · Replies 42 ·
Undergrad Electrons Jumping: What Does it Mean?
- nuclear420
- · Replies 4 ·
Graduate How to Label Spin Hamiltonian by Ms in EPR Experiments?
- Rajini
- · Replies 4 ·
Graduate Entanglement between particles of no common history
- colorSpace
- · Replies 8 ·
Undergrad Is Compton Scattering Valid at 180 Degrees?
- snoopies622
- · Replies 8 ·
Graduate Why does Stern-Gerlach measure spin along the device axis?
- msumm21
- · Replies 4 ·
Graduate Interaction picture (Is there a mistake in QFT books?)
- jdstokes
- · Replies 3 ·