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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Undergrad What Causes Refraction to Occur?
- austinv
- · Replies 3 ·
Graduate Metal Contact Effect on 1-D particle in a box quantum well
- theanser
- · Replies 2 ·
Graduate Time Travel - Between two Kerr metric black holes w/detached event horizons
- Dan81
- · Replies 1 ·
Graduate What are the four bell states and how do they relate to entanglement swapping?
- StevieTNZ
- · Replies 6 ·
Is It Possible to Find a Romney Voter in an Excited State?
- Oerg
- · Replies 9 ·
Graduate Do wave-functions pass through transparent obstacles?
- San K
- · Replies 3 ·
Graduate Why Are Photons Reflected at the Same Angle They Are Absorbed?
- Devils
- · Replies 5 ·
Graduate Quantum Jumps: Do they really exist?
- Jano L.
- · Replies 57 ·
Graduate Why is the wave function not measurable alone?
- Toyona10
- · Replies 2 ·
Undergrad Where can I find recommended books to learn about Quantum Physics?
- Lexie_AT
- · Replies 6 ·
Graduate Why Does Electron Angular Momentum Not Align with External Field?
- tasnim rahman
- · Replies 9 ·
Graduate Help, my brain hurts. Does anything exist?
- freddiy
- · Replies 28 ·
Graduate Relation between commutation and quantization
- osturk
- · Replies 3 ·
Undergrad What Is the Conjugate of the Wave Function ψ(x)=R(x)e^(ikx)?
- chunhui219
- · Replies 1 ·
Graduate What is the true meaning of observing in quantum mechanics?
- Mukilab
- · Replies 3 ·
Graduate How can you prepare a state with a single photon?
- Cmertin
- · Replies 3 ·
Graduate Heisenberg Picture: Popularity & Photon Double-Slit Treatment
- zonde
- · Replies 9 ·
Graduate Emilio Santos joins the dark side
- DrChinese
- · Replies 40 ·
Graduate Do we really need a cutoff in QFT
- geoduck
- · Replies 6 ·
Graduate What causes the tilt angle of a precessing proton to change in a magnetic field?
- dangus
- · Replies 1 ·
Graduate A method to detect fermionic magnetic monopoles?
- johne1618
- · Replies 1 ·
Graduate Decoherence and the Density Matrix
- captain_clogs
- · Replies 1 ·
Graduate How Does Gravitational Lensing Work in the Delayed Choice Experiment?
- bobsmith76
- · Replies 2 ·
Graduate Understanding Renormalization in QFT: A General Approach to Mass and Fields
- anthony2005
- · Replies 11 ·
Graduate A few questions on quantum physics
- beatlemaniacj
- · Replies 2 ·
Graduate How to find the geometry of singlet/triplet states?
- rudyzhou2
- · Replies 1 ·
Graduate How does the Pauli exlusion principle work?
- Cibek
- · Replies 4 ·
Graduate Does schrodinger equation give complete description of electron?
- aditya23456
- · Replies 14 ·
Graduate The role of lambda in Bell (1964) and experiments
- Gordon Watson
- · Replies 1 ·
Graduate Excitons. Is this the same as radiative recombination?
- Logio
- · Replies 1 ·
Graduate Q regarding Quantum decoherence, r.e. double slit experiment
- VCortex
- · Replies 1 ·
Graduate Quantum entanglement communication
- idea2000
- · Replies 5 ·
Undergrad What Is the Collapse of the Wave Function in Quantum Mechanics?
- lntz
- · Replies 1 ·
Graduate Questions abot magnetic monopoles
- johne1618
- · Replies 5 ·
Graduate Wave functions, i don't get em
- 3m0k177y
- · Replies 9 ·
Graduate Schrodinger's Wave Equation: Understanding Observability
- batabek
- · Replies 28 ·
Graduate Uncertainty Principle & Particles Giving Off Light
- Ralphonsicus
- · Replies 9 ·
Graduate Couple of questions on quantum physics from non-physicist
- gogo_t
- · Replies 18 ·
Graduate Assumptions for derivation of Plancks' law
- tom.stoer
- · Replies 3 ·
Graduate Difficulty with relativistic units, eV/c^2
- yoshtov
- · Replies 2 ·
Graduate Wave Function: Physical Basis of 1st Order Derivative
- phoenixnitc
- · Replies 7 ·
High School How matter converted into energy?
- Ravi Mandavi
- · Replies 7 ·
Graduate Heisenbergs thought experiment
- mycotheology
- · Replies 3 ·
Graduate Two simultaneous measures of complementary properties
- dpa
- · Replies 10 ·
Graduate Finding the 3x3 Matrix Representation of SU(2)
- QuantumLeak
- · Replies 6 ·
Graduate Particles and Wigner little groups
- Mesmerized
- · Replies 2 ·
Graduate What does the wavevector \vec{k} mean?
- mzh
- · Replies 8 ·
Graduate Query about Grassmann Variables in Lewis Ryder's book
- maverick280857
- · Replies 4 ·
Graduate Challenges of very high energy physics
- jfy4
- · Replies 1 ·
Graduate Schwartz Distribution Theory in N variables?
- lugita15
- · Replies 9 ·
Graduate Electron density in terms of squares of wavefunctions
- Physicslad78
- · Replies 2 ·
Graduate Object Jumping from Quantum Vibrations Statistical Mechanics
- the ads 13
- · Replies 5 ·
Graduate Quantum particles expand space?
- Spinnor
- · Replies 1 ·
Graduate Braggs law and x-ray crystallography
- mycotheology
- · Replies 4 ·
Graduate Eigen Value, Eigen function -Schrodinger wave equation
- shaikss
- · Replies 1 ·
Graduate Detecting Entanglement in Alice Without Measuring Bob
- shifty123
- · Replies 2 ·
Graduate Comparison of strong nuclear force and electromagnetic force
- clallier
- · Replies 1 ·
Graduate Why is quantum entanglement difficult to realize?
- Aidyan
- · Replies 4 ·
Graduate Energy Conservation versus Quantum and Relativistic Effects
- Hypatio
- · Replies 8 ·
Graduate Is Quantum Entanglement a Means of Evil Communication Across the Galaxy?
- Causetic
- · Replies 28 ·
Graduate Mach–Zehnder interferometer question, path detection
- msumm21
- · Replies 7 ·
Graduate Question about Quantum Theory regarding hydrogen atom and photon
- euquila
- · Replies 3 ·
Graduate Time-energy uncertainty and virtual particles
- geoduck
- · Replies 3 ·
Graduate Heisenberg ferromagnet and spin waves
- JohnGringo
- · Replies 1 ·
Graduate Simplest example where quantization is unknown
- quasar987
- · Replies 9 ·
Graduate Quantum optics is a reference to a c-number
- Niles
- · Replies 2 ·
High School Electrical activity of an atom
- AH020387
- · Replies 3 ·
Graduate Inverting the quantum cloning of photons
- DennisN
- · Replies 1 ·
Graduate Looking for a not gentle introduction to Q. Physics
- JamesOrland
- · Replies 4 ·
Graduate Objects Disappearing: Is It Possible?
- DarkFalz
- · Replies 3 ·
Graduate Questionable Question about Photons and Waves
- rkimble
- · Replies 1 ·
Graduate Quantum tunnelling outside the light cone?
- BWV
- · Replies 2 ·
Graduate Why Can't H-Atoms Emit a Single Photon in the 2s to 1s Transition?
- Demon117
- · Replies 2 ·
Undergrad What is negative energy and how does it relate to the capacity for work?
- avery
- · Replies 2 ·
Graduate Non central potential and energy dependence
- naruto365
- · Replies 1 ·
Graduate Neutrino and Black Hole Interaction: Approaching, Passing, or Colliding?
- conner.ubert
- · Replies 5 ·
Undergrad Check 2 waave displacement equations please
- Lengalicious
- · Replies 4 ·
Graduate What is an observer, defined by QM?
- =entropy
- · Replies 17 ·
Graduate How can the Higgs Boson induce mass?
- Mukilab
- · Replies 3 ·
Graduate Landau: Explaining the Definition of "Number of States with Energy
- Stalafin
- · Replies 3 ·
Graduate Direct products and direct sums in QM
- Amok
- · Replies 1 ·
Graduate Bell's derivation; socks and Jaynes
- harrylin
- · Replies 97 ·
Undergrad Trying to understand (E2 - p2c2 = m2c2 )
- avery
- · Replies 2 ·
Graduate Does getting which-way info introduce a phase difference?
- San K
- · Replies 3 ·
Graduate Electron oscillation between states
- jjurbanus
- · Replies 5 ·
Graduate Degeneracy of Hydrogen atomic orbitals with different l-values but same n-value
- octopus
- · Replies 5 ·
Graduate Multi World Hypothesis and The Double Slit Experiment.
- physics.x2010
- · Replies 5 ·
Graduate Why isn't momentum a function of position?
- lugita15
- · Replies 69 ·
Graduate Why shall Quantum Mechanics accept Relativity?
- dpa
- · Replies 24 ·
Graduate Schrodinger equation of particle in box
- R-ckay
- · Replies 1 ·
Graduate Feynman diagrams for spin 1/2 particles
- Chopin
- · Replies 2 ·
Graduate How Does Entangled Photon Behavior Challenge Local Realism?
- StevieTNZ
- · Replies 8 ·
Graduate Advanced undergrad/grad book for classical mechanics as macro limit of QM
- Einstein Mcfly
- · Replies 1 ·
Graduate Why we only consider ''group'' symmetry but not general symmetry?
- ndung200790
- · Replies 29 ·
Graduate How did Heisenberg derive his famous principle?
- Michio Cuckoo
- · Replies 13 ·
Graduate What Happens to the Momentum Operator as Planck's Constant Approaches Zero?
- the_pulp
- · Replies 2 ·
Graduate Theory of Everything or Troll?
- slayerjacket
- · Replies 3 ·
Undergrad Why Don't Electrons Spin Into the Center of the Nucleus?
- miniradman
- · Replies 2 ·
Graduate Why Vector Spaces? Origins & Benefits
- genericusrnme
- · Replies 1 ·
Undergrad What really causes electromagnetic induction/ the motor effect?
- henpen
- · Replies 2 ·