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.
Threads
Undergrad Understanding Vacuum Photocell: Explanation, Polarities, and Cut-off Potential
- Karimz
- · Replies 7 ·
Graduate Can expectation value of observables be imaginary?
- Raze2dust
- · Replies 25 ·
Graduate Why Can Electrons Tunnel Through Finite Barriers but Not Infinite Wells?
- ZeroScope
- · Replies 17 ·
Graduate Understand Mandl & Shaw's Derivation of Moller Scattering
- jdstokes
- · Replies 2 ·
Undergrad Atomic Isolation: Conditions for Line Spectra
- Icetray
- · Replies 1 ·
Graduate Exploring the Amplitude of de Broglie Waves: A Question on Mass and Velocity
- ben_trovato
- · Replies 1 ·
Graduate Coleman's QFT lectures on video
- Icosahedron
- · Replies 1 ·
Graduate Energy changes of a particle tunneling through a barrier
- james1001
- · Replies 1 ·
Graduate Is it possible to determine if a photon is entangled?
- ACG
- · Replies 1 ·
Graduate What is density matrix of one on two entangled qubits?
- Dims
- · Replies 1 ·
Graduate Potential commutes with position?
- syang9
- · Replies 8 ·
Graduate Renormalization - a dippy process - R. Feynman
- Buckeye
- · Replies 52 ·
Undergrad Links Between Electromagnetic, Electro Static and Gravitational Fields?
- WARLORDTF
- · Replies 7 ·
Graduate Clone Non-Orthogonal Quantum States - Violate No-Cloning Theorem
- Dragonfall
- · Replies 6 ·
Graduate Planck's constant and the matter constituents
- redtree
- · Replies 3 ·
Graduate Solving the Massless Klein Gordon Equation
- bartadam
- · Replies 9 ·
Graduate Lagrangian Gauge Transformation Q
- div curl F= 0
- · Replies 3 ·
Graduate Watching a wavefunction gradually collapse
- marcus
- · Replies 1 ·
Graduate The speed of light as an absolute max
- todosony
- · Replies 3 ·
Graduate Is a squeezed state keeping as a squeezed state in its evolution?
- wdlang
- · Replies 2 ·
Your favourite quantum phycisists and why?
- confusedashell
- · Replies 26 ·
Graduate Does Quantum Tunneling Explain Electron Positioning in Atomic Orbitals?
- Buckeye
- · Replies 9 ·
Graduate Electron Precession versus Proton Precession in a Magnetometer?
- xerxes73
- · Replies 1 ·
Graduate Annihilation, perhaps a defination problem
- Hevonen
- · Replies 4 ·
Graduate Can Electromagnetic Radiation Create Sound?
- bockerse
- · Replies 3 ·
Graduate Is Timeless Light the Key to Understanding Quantum Eraser Experiments?
- Ian Davis
- · Replies 2 ·
Graduate Possible Explanation for Quantum Mechanics?
- Fizzicist
- · Replies 2 ·
Graduate E=hw law for the energy of photons
- I_wonder
- · Replies 2 ·
Graduate Is the E=hw Law for Photons Infallible?
- I_wonder
- · Replies 1 ·
Graduate Why Does Neutron Precess Despite q=0?
- joex444
- · Replies 4 ·
Graduate Equation calculating the amplitude of a particle
- Crazy Tosser
- · Replies 4 ·
Graduate What are some examples of systems with time-dependent Hamiltonians?
- diegzumillo
- · Replies 1 ·
Graduate Quantum Teleportation: Explaining Quantum State, Opposite Phase & Entanglement
- DecliningTech
- · Replies 2 ·
Graduate Semiclassical Regime: What Is It & When to Use It
- xylai
- · Replies 2 ·
Graduate What Are the Key Applications of Dirac Form in Quantum Mechanics?
- johanjones190
- · Replies 4 ·
Graduate Potential well with two electrons
- monish
- · Replies 3 ·
Graduate How do classical and quantum mesh?
- Cocacolacan
- · Replies 3 ·
Graduate How does classical fail in here
- atom888
- · Replies 25 ·
Graduate Question about the helicity operator
- jdstokes
- · Replies 5 ·
Graduate What is the significance of complementarity in understanding quantum mechanics?
- nowaywarrior
- · Replies 3 ·
Graduate Quantum myth 3: nature is fundamentally random
- pellman
- · Replies 64 ·
Graduate What is the electric field around a quantum particle?
- Starbug
- · Replies 1 ·
Graduate Klein-Gordon Approximation Question
- div curl F= 0
- · Replies 4 ·
Graduate Lagrange multiplier for bose- Einstein stats
- siresmith
- · Replies 1 ·
Graduate Back Correcting the Uncertaininty Principle?
- bstacey
- · Replies 3 ·
Graduate Is Quantum Theory's Assumptions More Flawed Than Bell's?
- Hydr0matic
- · Replies 45 ·
Graduate Quantum Physics for a portable game console
- vincentm
- · Replies 1 ·
Graduate The expectation of 'z' and 'x+iy'
- vertices
- · Replies 4 ·
Graduate Schwinger Quantum action
- mhill
- · Replies 1 ·
Graduate How does filtering affect the coherence length of white light?
- tomasko789
- · Replies 4 ·
Graduate Can Zero Point Energy Be a Viable Alternative Energy Source?
- Chaos' lil bro Order
- · Replies 13 ·
Graduate Interference between photons that never meet
- SF
- · Replies 7 ·
Graduate Calculating the Inverse of Operator L in R^2
- Bimmel
- · Replies 2 ·
Graduate Order of Interference - 1st, 2nd, 4th - What Does It Mean?
- yefeiwen
- · Replies 2 ·
Graduate Space & Time from Spinorial Structures: A Crazy Observation
- K S Mallesh
- · Replies 2 ·
Graduate Photon as composite of electron and positron
- K S Mallesh
- · Replies 3 ·
Graduate How Long Can an Atom Stay in an Excited State?
- Ahmed Abdullah
- · Replies 4 ·
Graduate Nonlocality - fact or fiction?
- confusedashell
- · Replies 107 ·
Graduate Physicists and their pet theories
- nonlocal
- · Replies 14 ·
Graduate Formalisms (in fidelity calculation for quantum teleportation)
- ssampak
- · Replies 1 ·
Undergrad Light Propulsion: Can Photons Move Objects?
- madmike159
- · Replies 2 ·
Graduate Why Do Different Terms Arising From An Electron Configuration Differ In Energy?
- Repetit
- · Replies 7 ·
Graduate About scattering and bound states
- luisgml_2000
- · Replies 2 ·
Graduate Is angular momentum always quantized?
- pellman
- · Replies 15 ·
Graduate Quantum Mechanics and Determinism
- IlyaZ
- · Replies 9 ·
Graduate Dirac equation and general covariance
- jdstokes
- · Replies 17 ·
Undergrad Can someone explain the idea of degeneracy of orbitals?
- eccles1214
- · Replies 1 ·
Graduate Baker, Campbell, Hausdorff and all that
- lbrits
- · Replies 5 ·
Graduate Dual Gauge Curvature for U(1) and SU(3)
- lark
- · Replies 4 ·
Graduate Time translation in the heisenberg picture?
- pellman
- · Replies 19 ·
Graduate Pure Qubit Question: Does Alice Fulfill Bob's Demand?
- begyu85
- · Replies 2 ·
Graduate Berry phase in degenerare case
- wdlang
- · Replies 2 ·
Graduate Proving $\frac{d}{dt}\left\langle{XP}\right\rangle$ for Hamiltonian H
- bspoka
- · Replies 2 ·
Graduate Explaining the Color Change of Black Body Radiation from Coal
- bill nye scienceguy!
- · Replies 3 ·
Graduate Causal Evolution of Wave Function and Gravity
- dx
- · Replies 2 ·
Graduate Solving Mandl & Shaw 2.5: Show U = e^(-i/h)δαPα
- jdstokes
- · Replies 4 ·
Graduate Discussing Bose Einstein Condensate: Questions & Answers
- scupydog
- · Replies 5 ·
Graduate Transition Probability for a Laser system
- Angelos K
- · Replies 4 ·
Graduate What would happen to pauli exclusion principle
- Bose
- · Replies 6 ·
Graduate Waveequation for relativistic particle
- salaric
- · Replies 3 ·
Graduate How Does the Heisenberg Uncertainty Principle Relate to Photon Polarization?
- judonight
- · Replies 2 ·
Graduate Uniqueness of quantization of Dirac field
- pxb
- · Replies 11 ·
Graduate Novikov self-consistency principle
- majiball
- · Replies 1 ·
Graduate Solve Mandl & Shaw 2.3: Prove Lorentz Condition
- jdstokes
- · Replies 3 ·
Graduate Dual of Maxwell tensor as gauge curvature
- lark
- · Replies 7 ·
Graduate Schwinger-Dyson equations for Quantum Gravity
- mhill
- · Replies 1 ·
Graduate Calculating Probability of Measuring +h/2 in 1D HO
- oww
- · Replies 3 ·
Graduate A question on wave-particle duality
- rock.freak667
- · Replies 2 ·
Graduate What are the properties of a Hermitian Hamiltonian operator?
- Bunting
- · Replies 12 ·
Graduate Resolving the Uncertainty Principle: The Puzzle of Measuring Photon Momentum
- fermi
- · Replies 8 ·
Graduate Question on UV and IR divergences
- mhill
- · Replies 1 ·
Graduate Quantum myth 2. time-energy uncertainty
- pellman
- · Replies 12 ·
Graduate Unifying Electroweak & Strong Forces: Electrostrong Force
- Usaf Moji
- · Replies 2 ·
Undergrad Help with simple Einstein photon equation
- meemoe_uk
- · Replies 16 ·
Graduate Particle Octet: Explaining No Spin 1/2 Particles
- lark
- · Replies 3 ·
Graduate Is pauli exclusion principle a force
- Dropout
- · Replies 5 ·
Graduate Heisenberg Uncertainty Principle and Gaussian Distributions
- RogerPink
- · Replies 41 ·
Graduate Dirac Delta Function question(s)
- Crazy Tosser
- · Replies 26 ·
Graduate Quantum myth 1. wave-particle duality
- pellman
- · Replies 95 ·
Graduate Is quantum theory really necessary?
- DaveLush
- · Replies 66 ·