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
Graduate Interactions between real and virtual particles?
- asimov42
- · Replies 7 ·
Graduate Why isn't there a Time operator in QM?
- LarryS
- · Replies 47 ·
Graduate Are wavefunctions vectors in a function space or abstract states?
- Hipp0
- · Replies 14 ·
Graduate Fundamental Quantum Probability
- Geremia
- · Replies 28 ·
Graduate Questions about Schrödinger's cat, uncertainty, Higgs boson, and string theory
- jimharvard
- · Replies 5 ·
Graduate Do Electrons Interact With Virtual Particles?
- JerryMac
- · Replies 3 ·
Graduate Confused again by uncertainty relation
- kof9595995
- · Replies 18 ·
Graduate QED: Electron Spin & Magnetic Moment - Questions & Answers
- Urmi Roy
- · Replies 6 ·
Graduate Quantum Mechanics and Dialectics
- roam
- · Replies 2 ·
Graduate Why dont air molecules cause collapse
- guitarzanaz
- · Replies 1 ·
Graduate Why do particles exhibit wave-like behavior in quantum mechanics?
- randybryan
- · Replies 3 ·
Graduate How Does the Elitzur-Vaidman Bomb Tester Utilize Quantum Mechanics?
- LukeD
- · Replies 5 ·
Graduate What is the so called orthogonal operator basis ?
- twinphoton
- · Replies 5 ·
Graduate Why amplitude squared gives probability / Schrodinger Equation
- phina
- · Replies 80 ·
Undergrad Raman Spectroscopy: Freshman Physics Major Summer Research
- Christine90NY
- · Replies 2 ·
Graduate Was the particle in a box analogy a recent one?
- Grier
- · Replies 1 ·
Graduate The harmonic oscillator in terms of path integrals without dirac notation
- roberto85
- · Replies 1 ·
Graduate Quantum Tunneling- Walking through walls
- caljuice
- · Replies 2 ·
Graduate Measure on Path Integral not defined
- friend
- · Replies 35 ·
Graduate Is There a Mistake in Ballentine's Description of the Variational Principle?
- Derivator
- · Replies 1 ·
Graduate Which of the four forces is responsible for degeneracy pressure?
- LennoxLewis
- · Replies 67 ·
Graduate Does H(t1+t2)=Ht1+Ht2 for operators?
- Cosmossos
- · Replies 2 ·
Graduate Quick Braket notation question
- Crosshash
- · Replies 3 ·
Undergrad How are expectation values calculated?
- Cosmossos
- · Replies 7 ·
Graduate Commutators and Their Properties in Quantum Mechanics
- vertices
- · Replies 4 ·
Graduate Definitoon of trajectory in quantum physics, especially in path integrals
- roberto85
- · Replies 3 ·
Graduate Algebraic solution of hydrogenic atom
- kowalski
- · Replies 8 ·
Graduate Ultimate Fate of a Hydrogen Atom in a Perfect Vacuum
- NthDeegree
- · Replies 2 ·
Graduate Why are energy changes discrete in quantum mechanics?
- roshan2004
- · Replies 12 ·
Undergrad Does Distance Affect the Double-Slit Experiment?
- physx_420
- · Replies 5 ·
Identifying a quantum mechanics formula from an image
- thebigstar25
- · Replies 4 ·
Graduate How does they check the number of atoms in BEC?
- Choi Si Youn
- · Replies 1 ·
Graduate Quantum theory of the past and wave function collapse
- 0xDEADBEEF
- · Replies 6 ·
Graduate Paramagnetic term of the hamiltonian
- dd331
- · Replies 1 ·
Graduate The reciprocal expectation value
- ian2012
- · Replies 7 ·
Graduate Compute SHO Propagator: Eigenfunction Expansion
- chafelix
- · Replies 1 ·
Graduate Solving an Interesting Problem with Two Hermitian Operators
- chafelix
- · Replies 6 ·
Graduate Does an elementary particle move continuously or in discrete quanta?
- JerryMac
- · Replies 14 ·
Graduate Is the Heisenberg Uncertainty Principle about states or observations?
- edpell
- · Replies 1 ·
Graduate Potential energy in hydrogen atom
- qsa
- · Replies 15 ·
Graduate New limit on lorentz invariance violation
- connor415
- · Replies 2 ·
Graduate Analysis of time-dependent SE (infinite square potential)
- scorpion990
- · Replies 7 ·
Graduate Can Two Hermitian Matrices be Simultaneously Diagonalized if They Commute?
- Mr confusion
- · Replies 6 ·
Graduate Confusing integral in Zee's QFT
- waht
- · Replies 2 ·
Graduate Dimensions of scalar field φ in Lagrangian density
- RedX
- · Replies 11 ·
Graduate What is the nature of matter if not particles or waves?
- query_ious
- · Replies 2 ·
High School If Electrons Aren't Waves, Then What's Waving?
- xMonty
- · Replies 4 ·
Graduate How are operator valued distributions defined?
- jostpuur
- · Replies 2 ·
Graduate Taking picture in atto second? Yes we did.
- eha
- · Replies 7 ·
Graduate Quantum entanglement, not that weird.
- JustinMarbutt
- · Replies 12 ·
Graduate What are Repulsive Casimir Forces?
- alexgmcm
- · Replies 4 ·
Graduate A question on eigenstates and operators
- vertices
- · Replies 3 ·
Graduate Hypothetical entanglement question
- Molecule
- · Replies 6 ·
Undergrad What are the fundamental forces involved in the chemical reaction?
- Pythagorean
- · Replies 6 ·
Graduate Bohr-Sommerfeld Quantization Rule for 3D Systems
- paweld
- · Replies 2 ·
Graduate How can the properties of the same element differ
- neelakash
- · Replies 7 ·
Graduate The ground state of a time-reversal invariant system must has zero momentum?
- wdlang
- · Replies 6 ·
Graduate Are energy eigenvalues always positive in the Schrödinger equation?
- oddiseas
- · Replies 1 ·
Graduate What does coherence mean for the annihilation operator eigenstates?
- pellman
- · Replies 12 ·
Graduate Spatio-temporal shape and spectral distribution of pulse
- vivhappyrom
- · Replies 1 ·
Graduate Preferred basis problem in many-worlds interpretation
- helenk
- · Replies 11 ·
Graduate Gravity as a cancellation force
- genphis
- · Replies 3 ·
Graduate Does H(r) Equal Hψ(r) in Quantum Mechanics?
- andyc100
- · Replies 2 ·
Graduate Partial reflection and FTL communication in QED
- Malakai
- · Replies 9 ·
Graduate Parity transformation of spinor in Weinberg equation 2.6.22
- ap_nhp
- · Replies 3 ·
Graduate Do we need quantum-classical correspondence?
- xylai
- · Replies 2 ·
Graduate Angular momentum and group representation
- paweld
- · Replies 3 ·
Graduate Vacuum Polarization as EM Wave.
- Mr i
- · Replies 1 ·
Graduate Tensor products and subsystems
- Fredrik
- · Replies 21 ·
Graduate Can virtual particles explain quantum phenomena?
- Tsunami
- · Replies 3 ·
Graduate Does light spreading contradict the attraction of photons in a laser?
- rhenretta
- · Replies 14 ·
High School Do our fingers ever touch electrons or nucleis?
- eha
- · Replies 1 ·
Graduate Playing with magnetic balls, and now I have a question
- rhenretta
- · Replies 9 ·
Graduate Formula for expectation value of raidous in Hydrogen atom
- paweld
- · Replies 9 ·
Graduate Why doesn't spinless wavefunction transform like a probability density?
- ginda770
- · Replies 11 ·
Graduate Understanding Electron Probability in Atom
- dschmidt12
- · Replies 7 ·
Graduate Maxwell propagator in Kaku's QFT book
- hyungrokkim
- · Replies 4 ·
Graduate What is the construction of gamma matrices and spinors in higher dimensions?
- ismaili
- · Replies 3 ·
Graduate Does wave-particle duality result from how we observe rather than nature itself?
- Nick1234
- · Replies 29 ·
Graduate Wave-Particle Duality: Physics Implications
- MiNiWolF
- · Replies 2 ·
High School Why does the uncertainty principle not apply to a running man?
- vntskr
- · Replies 5 ·
Graduate The Large Hadron Collider - Where is the particle?
- mintparasol
- · Replies 16 ·
Graduate Planck length and the speed of light
- helenk
- · Replies 1 ·
Graduate What is the meaning behind a gluon's color?
- Char. Limit
- · Replies 2 ·
Graduate Maxwell Equations: Radiation requires acceleration?
- 1Truthseeker
- · Replies 3 ·
Graduate How does spin entanglement work with three or more electrons?
- QuantumVegan
- · Replies 8 ·
Graduate Solving Schrodinger's Equation: Finite Jumps at Singular Points?
- RedX
- · Replies 1 ·
Graduate Lost in Symmetry and Super Symmetry
- 1Truthseeker
- · Replies 4 ·
Graduate Pauli spin matrices
- firoz.raj
- · Replies 1 ·
Graduate Efimov 3-body theory experimentally proven
- turbo
- · Replies 4 ·
Graduate Does anybody know if there are instances other than diffraction
- Neo_Anderson
- · Replies 3 ·
Graduate Finite and infinitesimal Unitary transformations
- mtak0114
- · Replies 8 ·
Graduate Theorem of quantum-mechanical version of Borromean rings finally proven
- mugaliens
- · Replies 1 ·
Graduate Do L² and r² Commute in Quantum Mechanics?
- dreamspy
- · Replies 5 ·
Graduate At what temperature do quantum effects become significant for a gas
- Signifier
- · Replies 3 ·
Graduate Wave Collapse and Degenerate States - A Quick Question
- BAnders1
- · Replies 1 ·
Graduate Detecting a photon in a box through gravitational or thermal effects
- Dmitry67
- · Replies 44 ·
Graduate Intuitive Analogy to describe QM
- Galteeth
- · Replies 1 ·
Graduate Molecular Vibration and Gas Temperature
- Wilko
- · Replies 10 ·
Graduate Amplitude paths and Markov processes
- wofsy
- · Replies 2 ·