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 Quantum coherence and neutrino detection
- exponent137
- · Replies 19 ·
Graduate How is the wave function of a photon described in quantum field theory?
- enwa
- · Replies 5 ·
When do you think Quantum Computers will be out?
- dav1d
- · Replies 5 ·
Graduate Lagrangian, Hamiltonian and Legendre transform of Dirac field.
- kof9595995
- · Replies 18 ·
Undergrad Is a polarizer a filter or a converter?
- San K
- · Replies 59 ·
Graduate Angular Momentum and Expectation Values
- hc91
- · Replies 4 ·
Graduate Feynman's third general principle of QM
- ralqs
- · Replies 5 ·
Graduate A bunch of basic questions on electrons
- Helicobacter
- · Replies 8 ·
Graduate Complex Scalar Field and Probability Field
- jfy4
- · Replies 2 ·
Graduate Wave superposition nothing more than abstraction?
- CyberShot
- · Replies 60 ·
Graduate How Does the Double-Slit Quantum Eraser Work with Walborn's Setup?
- UChr
- · Replies 47 ·
Graduate How can I apply a unitary transformation to rotate a 3D complex wave function?
- newshurik
- · Replies 3 ·
Graduate Uncertainty principle and electrons
- ralqs
- · Replies 5 ·
Graduate Normalization factor in wave equation
- hnicholls
- · Replies 2 ·
Graduate Understanding Red Shift: A Derivation from Classical and Relativistic Physics
- FireStorm000
- · Replies 2 ·
Graduate Is there experimental evidence against backwards causation?
- mach567
- · Replies 26 ·
Undergrad Can an electron collide with the nucleus of an atom?
- ItsDaveDude
- · Replies 10 ·
Graduate Understanding Stimulated Emission: Got the what, how about the why?
- FireStorm000
- · Replies 4 ·
Graduate Examples and references for Dirac bracket in constraints
- aries0152
- · Replies 4 ·
Graduate What causes Bragg planes in materials?
- ninevolt
- · Replies 3 ·
Graduate What is the significance of light-shifted ground states in sub-doppler cooling?
- Turtle492
- · Replies 1 ·
Graduate How is the fundamental group related to quantum statistics?
- vanirof
- · Replies 9 ·
Graduate Does Bell's theorem imply stronger or weaker correlation?
- lugita15
- · Replies 23 ·
Undergrad Determine frequency of emitted photon
- liquidFuzz
- · Replies 3 ·
Graduate Virtual Particles and The Law of Conservation of Energy
- FiziksDummy
- · Replies 17 ·
Graduate Maxwell's or Schrodinger's Light Wave
- RonLevy
- · Replies 4 ·
Graduate One electron two slit exeriment when one eletron is emited after 1 hour
- Younghun park
- · Replies 2 ·
Graduate Confusion (6) from Weinberg's QFT.(in and out state)
- kof9595995
- · Replies 13 ·
Graduate Shooting an electron at an ion's nucleus
- jkjkjk
- · Replies 12 ·
Graduate How to quantize the ''mathematical'' fluctuation field in statistics?
- ndung200790
- · Replies 3 ·
Graduate Solutions to the Harmonic Oscillator Equation and Hermite Polynomials
- *FaerieLight*
- · Replies 3 ·
Graduate Counting the states of a free particle (Periodic boundary conditions)
- JK423
- · Replies 4 ·
Graduate How do I derive a wave function for an electron in a finite potential well?
- liquidFuzz
- · Replies 6 ·
Graduate Non-diagonality of Dirac's Hamiltonian
- Mesmerized
- · Replies 2 ·
Graduate Probability of Wrong Guess on Photon Polarization: Peres P47
- BWV
- · Replies 2 ·
Graduate Quantum mechanics and causality/determinism.
- SeventhSigma
- · Replies 5 ·
Graduate Entanglement – the order of measurements can be important
- UChr
- · Replies 11 ·
Graduate Quantum filed theory in 1+1 dimension
- paweld
- · Replies 1 ·
High School Can photons provide information about color and distance?
- YoungDreamer
- · Replies 18 ·
Graduate Simulation of Grover's Quantum Database Search Algorithm
- apetrillo14
- · Replies 1 ·
Graduate Can an antiproton(negatron) orbit around a regular nucleus?
- AndromedaRXJ
- · Replies 3 ·
Graduate Interpetation of wavefunction - atom
- liquidFuzz
- · Replies 5 ·
Graduate Active QM Topics: What's Hot Now?
- edpell
- · Replies 2 ·
Graduate Questions about deBroglie (matter) waves
- JDoolin
- · Replies 42 ·
Graduate Why Bell's theorem filters out local realistic models
- DrChinese
- · Replies 36 ·
Graduate MacroEntanglement and Consciousness
- steve001
- · Replies 5 ·
Graduate Nate's Question: Why Is Detection Equivalent to Annihilation?
- nateHI
- · Replies 3 ·
High School What is Lockheed Martin's goal for their quantum computing investment?
- edpell
- · Replies 1 ·
Graduate Question about Lagrangian in electromagnetic interaction
- mings6
- · Replies 1 ·
Graduate Virtual particle in path integral and perturbative approaches
- Shaw1950
- · Replies 4 ·
Graduate Confusion (3) from Weinberg's QFT.(photon's angular momentum or helicity)
- kof9595995
- · Replies 6 ·
Graduate Why do electron-electron-interactions raise the energy level?
- Cassidyzialle
- · Replies 1 ·
Graduate Find the eigenvalues of Liouvillian
- emind
- · Replies 1 ·
Graduate Virtual particle and event horizon
- Mean-Hippy
- · Replies 3 ·
Graduate Possible States of n Qubits as opposed to classical bits
- doomCookie
- · Replies 8 ·
Graduate Compton Scattering: Calculating Fractional Wavelength Shift
- skanda9051
- · Replies 2 ·
Graduate Confusion (5) from Weinberg's QFT.(invariance of S-matrix)
- kof9595995
- · Replies 4 ·
Graduate Conscious vs. Non-Conscious Observation
- MetalBunnyLove
- · Replies 20 ·
Graduate Addition for generators of rotation
- jfy4
- · Replies 6 ·
Graduate How do you observe the position of an electron?
- Helicobacter
- · Replies 3 ·
Graduate Quantum Mechanics without Hilbert Space
- Varon
- · Replies 90 ·
Finding "Entropy and Temperature of Radiant Heat" by Max Planck
- enwa
- · Replies 2 ·
Graduate Collapse and creation of wave function
- San K
- · Replies 3 ·
Graduate How Do Virtual Photons Create Attractive Forces Between Particles?
- Vorde
- · Replies 8 ·
Graduate Decomposition of vector potential
- jfy4
- · Replies 18 ·
Graduate Why correlation function decay as power law at critical temperature point?
- ndung200790
- · Replies 2 ·
Graduate Curiosity about complete basis
- issacnewton
- · Replies 12 ·
Graduate Expanding a ket in the basis of different Hamiltonians
- JK423
- · Replies 25 ·
Graduate Hbar c=1 and EV: Understanding Inverse Energy Units
- BWV
- · Replies 6 ·
Graduate Photon Exchange - Frequency? And uncharged antiparticles
- MrNerd
- · Replies 6 ·
Undergrad Understanding Orbitals and Energy Levels in the Bohr Model
- liquidFuzz
- · Replies 5 ·
Graduate Chaotic quantum billiards on a torus.
- MathematicalPhysicist
- · Replies 1 ·
Graduate Conservation of energy after measurement
- Amir Livne
- · Replies 7 ·
Graduate What does show solutions to the schroedinger eqn mean?
- Kovalainen
- · Replies 2 ·
Graduate Does the Uncertainty Principle Make Precise Momentum Measurement Impossible?
- luxiaolei
- · Replies 4 ·
Graduate Is the vectorial representation of the Lorentzian Group unitary?
- IRobot
- · Replies 3 ·
Graduate Why there is 2[itex]\pi[/itex] in every dirac delta function
- nadia8999
- · Replies 3 ·
Graduate Quantum Entanglement - Two Places at Once
- Alfred2011
- · Replies 17 ·
Graduate Quantum Interference in tunneling electron transport?
- jmeisner2812
- · Replies 1 ·
Graduate Does electron diffraction pattern depend on slit position targeting?
- msumm21
- · Replies 4 ·
Graduate Quantum mechanics and Minimal coupling of Dirac field
- mtak0114
- · Replies 5 ·
Undergrad Why do electrons drop to lower energy levels in atoms?
- Davidthefat
- · Replies 6 ·
Graduate How to model a classical bath?
- IsNoGood
- · Replies 2 ·
Graduate How Can You Determine the Wavefunction ψ(r) from Electron Density |\psi(r)|^2?
- digermane
- · Replies 2 ·
Graduate Time-dependent perturbation theory
- JK423
- · Replies 50 ·
Graduate Proof that micro black holes can't exist?
- zeromodz
- · Replies 3 ·
Undergrad What determines if the photoelectric effect occurs?
- MRFISCHERRULZ
- · Replies 2 ·
Graduate Can a photon and atom become entangled when the atom emits a photon?
- cragar
- · Replies 5 ·
Undergrad Quantum Mechanics book suggestions
- ibysaiyan
- · Replies 4 ·
Graduate Is there a way to derive Planck's Law without using a cavity?
- RGann
- · Replies 6 ·
Graduate Looking for the name of a process.
- Rlam90
- · Replies 1 ·
Graduate Quantum mechanical coupling/excitation
- pbeierle
- · Replies 2 ·
Graduate Why in two dimension space many QTFtheory become renormalizable?
- ndung200790
- · Replies 1 ·
Graduate Does Wheeler's delayed choice experiment violate causality?
- byron178
- · Replies 35 ·
Graduate Too few examples to explain The principles of quantum mechanics by dirac.
- DiracRules
- · Replies 2 ·
Graduate Time development of a wavefunction
- Demon117
- · Replies 26 ·
Graduate Do entangled systems have parts?
- PhilosNS1
- · Replies 19 ·
Undergrad What does single-particle interference mean for macroscopic objects?
- Viva-Diva
- · Replies 59 ·
Graduate In Electron Spin Resonance, Does Spin Up Have More Energy Than Spin Down?
- jaketodd
- · Replies 2 ·
Graduate How are atoms entangled and can it be done remotely?
- hammertime
- · Replies 30 ·