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.
Sub-forums
Threads
Graduate Why does theta transform as exp(-i alpha)*theta under U_R(1)?
- alphaone
- · Replies 1 ·
Graduate How is the conjugate momentum defined in the Schrödinger picture of QFT?
- alphaone
- · Replies 1 ·
Graduate Hidden Variable: The Role of Genetics and Parents in Twins
- beda pietanza
- · Replies 1 ·
Graduate Why Don't Electrons Fall into the Nucleus Despite the Coulomb Force?
- IMGOOD
- · Replies 24 ·
Graduate Is there no energy conservation?
- nevo
- · Replies 7 ·
Undergrad Majorana Equation Explained for Newbies
- WeakCarrier
- · Replies 2 ·
Graduate Can a particle be anywhere if time is infinitely divisible?
- fireball3004
- · Replies 6 ·
Graduate Divergence of a partition function
- lalbatros
- · Replies 9 ·
Graduate Degenerate perturbation theory with α=0, β=1 in Griffiths
- gulsen
- · Replies 2 ·
Graduate Atom's Place and Speed: A Curious Question
- Wilsh
- · Replies 6 ·
Undergrad Interference Pattern: Non-Laser Light Sources
- Quantumgravity
- · Replies 8 ·
Graduate Can a single proton be trapped in a Penning trap? And what happens to it?
- bogie
- · Replies 1 ·
Graduate When does degeneracy occur in a 3D rectangular box with unequal sides?
- judonight
- · Replies 4 ·
Graduate 2 slit trouble with vapor trails
- oompa
- · Replies 3 ·
Graduate Understanding Wavepacket Spreading in QM
- Saketh
- · Replies 3 ·
Graduate Can Self-Study Clarify Basic Quantum Mechanics Concepts?
- Saketh
- · Replies 3 ·
Graduate Does quantum pair creation violate conservation of energy?
- CosmologyHobbyist
- · Replies 15 ·
Graduate Does measurement of entangled X affect simultaneously measured Y on the other particle?
- ptabor
- · Replies 5 ·
High School Does light have mass if it carries momentum and gravity bends it?
- David_Harkin
- · Replies 2 ·
Graduate Central Potential: Eigenstates Depend on Coordinates
- NeoDevin
- · Replies 3 ·
Graduate DOes the trace determine the Hamiltonian
- tpm
- · Replies 3 ·
Graduate N=2 Supersymmetric Quantum Mechanics
- quantumdude
- · Replies 14 ·
Graduate How Do Commutation Relations Fit into the Concept of a Lie Algebra?
- Physiana
- · Replies 2 ·
Graduate Explicit formula the nth eigenfunctions of the quantum harmonic oscillator?
- quasar987
- · Replies 8 ·
Graduate How Does Size Influence Quantum Phenomena?
- MetalBunnyLove
- · Replies 4 ·
High School Position of elementary particles
- Helicobacter
- · Replies 3 ·
Graduate Solution to nonlinear field equations
- wandering.the.cosmos
- · Replies 1 ·
Graduate Phase of an Amplitude Function
- chessforce
- · Replies 4 ·
Graduate Probability of classically forbidden region
- qwertgg
- · Replies 1 ·
Graduate Physical significance of othogonality condition?
- sruthisupriya
- · Replies 4 ·
Graduate Does photon absorption and reemission during reflection affect light clock measurements?
- gonzo
- · Replies 13 ·
Graduate Composite Hilbert Spaces and Operators
- ArjSiv
- · Replies 5 ·
Graduate Eigenfunctions in Hilbert Space, Infinite Square Wells and Uncertainty
- neo2478
- · Replies 2 ·
Undergrad Can protons and neutrons be streamed in beams like electrons in a CRT?
- Dominisi
- · Replies 1 ·
Graduate Relation between spin and its magnetic field
- BeauGeste
- · Replies 4 ·
Graduate Looking for introduction on QND: quantum non-demolition measurements
- lalbatros
- · Replies 1 ·
Graduate What is the theoretical proof of the quantization of the energy of the EM field?
- Abu Abdallah
- · Replies 2 ·
Graduate Do the Particle and Associated Wave Always Move in the Same Direction?
- bernhard.rothenstein
- · Replies 1 ·
Graduate What is a "structure-less particle"?
- PhillipKP
- · Replies 8 ·
Graduate Definition for the term gauge symmetry
- alphaone
- · Replies 15 ·
Graduate Theoretical Limit on Frequency?
- Swapnil
- · Replies 13 ·
Graduate An attempt to the Unified Theory of Physics.
- Hymne
- · Replies 2 ·
Graduate How does TDPT handle time dependent perturbations?
- quasar987
- · Replies 3 ·
Graduate My fundamental misunderstandings of quantum mechanics
- alsey42147
- · Replies 13 ·
Graduate Two experiments on the Wave-Particle duality
- Hans de Vries
- · Replies 26 ·
Undergrad Does photon have upper limit energy ?
- magnetar
- · Replies 5 ·
Graduate Proving that sums and products of hermitian operators are hermitian
- sunsun
- · Replies 4 ·
Graduate Bremsstrahlung near the cutoff frequency, experimental data
- lalbatros
- · Replies 3 ·
Graduate Probability in relation to distance
- Sumo
- · Replies 10 ·
Graduate Finding clear explanations of ladder operators
- sillystring
- · Replies 11 ·
Graduate Questions concerning Decoherence and Entanglement
- regent
- · Replies 34 ·
Graduate Conditional probabilities in QM
- Mike2
- · Replies 11 ·
Undergrad Can Noble Gases Be Combined for More Vibrant Colors?
- Loren Booda
- · Replies 1 ·
Undergrad Bohr radius for single electron orbits
- xiankai
- · Replies 2 ·
Graduate How Can Static Fields Be Effectively Handled in Quantum Field Theory?
- lalbatros
- · Replies 1 ·
High School What is an alternative reality in physics?
- fe208
- · Replies 2 ·
Graduate Constructing a conserved current from Lorentz invariance
- alphaone
- · Replies 7 ·
Graduate Info in nanotechnology, optical tweezers
- njoi
- · Replies 4 ·
Graduate Relation between symmetry, charges and one-particle states
- alphaone
- · Replies 1 ·
Graduate Understanding Quantum Symmetry Breaking
- alphaone
- · Replies 1 ·
Graduate Eigenfunctions of Excited States: Why Orthogonal?
- n0_3sc
- · Replies 2 ·
Graduate Wave particle duality confusion
- madness
- · Replies 12 ·
Graduate Rigorous Determination of Bosonic and fermoinic commutation relation
- ClubDogo
- · Replies 1 ·
Graduate Delayed Choice Quantum Erasure
- captainmack
- · Replies 3 ·
Graduate Solve Ernest S. Abers problems
- hmhm696
- · Replies 5 ·
Graduate Bohr Model missing momentum question
- ianbell
- · Replies 8 ·
Conan - Conan and Jim Carrey Talk Quantum Physics
- paul_peciak
- · Replies 3 ·
Graduate Energy levels for the Hydrogen Atom
- ClubDogo
- · Replies 3 ·
Graduate Do quantum mechanical descriptions deal with forces on particles?
- pivoxa15
- · Replies 17 ·
Graduate Parallel Universes and Quantum Computing
- McHeathen
- · Replies 1 ·
Graduate Why does matrix element ratio determine 4-vector structure?
- alphaone
- · Replies 3 ·
Graduate Is quantum mechanics applicable to blackholes?
- james1234567890
- · Replies 5 ·
Undergrad Talk about electrons, double slit, interface patterns
- WiccanSpirit
- · Replies 4 ·
Graduate Proof that FTL communication quantum protocol is impossible?
- Euclid's rat
- · Replies 3 ·
Graduate Photoelectric effect: a recreative quiz
- lalbatros
- · Replies 2 ·
Graduate Measuring particle position and velocity
- Zinite
- · Replies 1 ·
Graduate Eigenvalues of J_2 + K_1; -J_1 + K_2
- wandering.the.cosmos
- · Replies 1 ·
Graduate Can you derive the Schrödinger equation from first principles?
- Thrice
- · Replies 29 ·
Graduate Planck's oscillators and the energy assumption
- Saketh
- · Replies 2 ·
Graduate Bell experiment would somehow prove non-locality and information FTL?
- heusdens
- · Replies 303 ·
Graduate Can the wavefunction of a particle determine its position in space?
- cristian1500
- · Replies 15 ·
Graduate Questions Concerning Static and Dynamic Properties
- Tryon11
- · Replies 4 ·
Graduate Why does measurement collapse the wave function in the double-slit experiment?
- paul_peciak
- · Replies 3 ·
Graduate Cheating a faster than light signal.
- Jimmy Snyder
- · Replies 19 ·
Graduate Probability in Quantum Mechanics
- Japa
- · Replies 3 ·
Undergrad Infrared Heating: How It Works
- anantchowdhary
- · Replies 1 ·
Undergrad Finding the energy of an electron in a particular orbit
- anantchowdhary
- · Replies 12 ·
Graduate Does a photon interact with itself in double slit experiments?
- pmb_phy
- · Replies 27 ·
High School How is quantum physics applied in our daily lives?
- fonkem
- · Replies 7 ·
Graduate Is light related to time and the fourth dimension?
- Osirus1156
- · Replies 5 ·
Graduate Probability conservation and symmetry
- domhal
- · Replies 6 ·
Graduate Gravity a result of procession of time?
- marlberg
- · Replies 15 ·
Graduate What happens to the Kinetic Energy during tunneling?
- prtcool
- · Replies 10 ·
High School I am very new to quantum physics. Want to know how photons move.
- anantchowdhary
- · Replies 11 ·
Foundations of Physics, the magazine, open access articles.
- Hans de Vries
- · Replies 3 ·
Graduate Ether before relativity in quantum theory also
- jostpuur
- · Replies 1 ·
Graduate Is D-Wave's quantum computer the real deal?
- fargoth
- · Replies 6 ·
Graduate Sequential Stern-Gerlach filters at perpendicular angles
- DoctorMO
- · Replies 23 ·
Undergrad How does a photon move if it's a particle with frequency?
- anantchowdhary
- · Replies 9 ·
Graduate What is electron spin and intrinsic spin of elementary particles?
- anantchowdhary
- · Replies 14 ·