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 Is information lost if a particle is annhilated by it's antiparticle
- BernieM
- · Replies 13 ·
Graduate Understanding Spin in Quantum Mechanics: What Does Measuring Along an Axis Mean?
- Jomenvisst
- · Replies 5 ·
Graduate Symmetries and Spin orbit interaction
- jarod765
- · Replies 2 ·
Graduate Quantum physics vs classical physics
- Dammes
- · Replies 2 ·
Graduate Black holes, universe boundaries and geometry
- mfbpc68
- · Replies 2 ·
Graduate What Are the Limitations and Possibilities of Measuring Time?
- cheemaftw
- · Replies 81 ·
Graduate Prove Heisenberg Uncertainty Principle for Ground State Harmonic Oscillator
- Sciencenerd3
- · Replies 12 ·
Graduate What does the operator C^3 represent in Bra-ket notation?
- rsaad
- · Replies 12 ·
Graduate Immortality and Schrodinnger's Cat
- grubby
- · Replies 3 ·
Graduate Lagrangian visualisation and Uncertainty Principle
- exponent137
- · Replies 1 ·
Graduate Proof of Baker-Hausdorff Lemma - Find Online for Quantum Mechanics
- the_kid
- · Replies 1 ·
Graduate Correlation functions vs. Scattering Amplitude
- wam_mi
- · Replies 3 ·
Graduate Is the Photon's Mass Really Zero?
- bgq
- · Replies 20 ·
Graduate QM: measurement vs interaction
- oddthingy
- · Replies 1 ·
Graduate Explanation of a failed approach to relativize Schrodinger equation
- nacadaryo
- · Replies 2 ·
Graduate Perturbation theory infinite well
- Dammes
- · Replies 2 ·
Graduate Is there a universal relationship between momentum and wave vector?
- hokhani
- · Replies 1 ·
Graduate 'Advantages' of Quantum Encryption
- spenserf
- · Replies 8 ·
Graduate Feynman Path Integral - All Possible Paths - Relativity Conflict?
- lovatto
- · Replies 1 ·
Graduate Help understanding position operator eigenfunction derivation
- bob900
- · Replies 5 ·
Graduate Understanding Phase & Group Velocities in Different Contexts
- The Head
- · Replies 3 ·
Graduate Can an even number of Fermions be a Bosonic system?
- Imanbk
- · Replies 1 ·
Graduate Calculation of the Pontryagin index
- S_klogW
- · Replies 3 ·
Graduate Experimental evidence for the ground state of energy
- PerpStudent
- · Replies 2 ·
Graduate Why is it impossible to teleport quantum states?
- Jarwulf
- · Replies 2 ·
Graduate Young's Double Slit Experiment with Single Photon Counters and Offset Mask
- ivanb
- · Replies 1 ·
Graduate Momentum Eigenfunctions and Definite Momentum
- jmcelve
- · Replies 3 ·
Graduate Time partial derivative of a wave function
- NeroKid
- · Replies 5 ·
Graduate Qualitative description of photon from faraway star
- birulami
- · Replies 30 ·
Graduate Dirac equation for proton/neutron
- paweld
- · Replies 3 ·
Graduate Quantum Correlations with no Causal Order
- the_pulp
- · Replies 2 ·
Graduate A cat, an electron, and a metaphysician walk into a bar
- konig12345
- · Replies 21 ·
Graduate Entanglement after the photons no longer exist
- San K
- · Replies 5 ·
Graduate Is the Planck length relative?
- Fiziqs
- · Replies 12 ·
Graduate So what does a single photon do to a group of charged particles?
- jaydnul
- · Replies 1 ·
Graduate Integrating the Expectation Value
- chill_factor
- · Replies 1 ·
Graduate Understanding Unpolarized Spin States in Quantum Mechanics
- HomogenousCow
- · Replies 2 ·
Graduate Probabilistic breakdown of quantum mechanics?
- romsofia
- · Replies 8 ·
Graduate Help me understand wave equation ?
- mraptor
- · Replies 14 ·
Graduate Parity Exchanges Right & Left-Handed Spinors: Q&A from Page 94 of Tong's QFT
- center o bass
- · Replies 13 ·
Graduate Bloch Oscillation in 1D crystal Lattice
- TheForce
- · Replies 1 ·
Graduate Proving Eigenstate Energy: Multiply ψ(x) by Hamiltonian Operator for e-ikx
- TheNE
- · Replies 6 ·
Graduate Help understanding this Lie Algebra/Group stuff
- genericusrnme
- · Replies 1 ·
Graduate Origin of the schroedinger's wave equation
- Aniket1
- · Replies 30 ·
Graduate I must be doing something wrong ?
- help1please
- · Replies 1 ·
Graduate Why do wavefunctions sometimes combine?
- Jarfi
- · Replies 2 ·
Graduate What Are Negative Energies in System ψ?
- chill_factor
- · Replies 6 ·
Graduate Is the vacuum state's energy affected by the size of the box?
- Imanbk
- · Replies 6 ·
Graduate Solving the general Schodinger equation
- KillaKem
- · Replies 2 ·
Graduate Expanding Higgs Field: Where Does Energy Come From?
- serp777
- · Replies 1 ·
Graduate What Determines the Direction of a Dipole Operator in Quantum Optics?
- McLaren Rulez
- · Replies 2 ·
Graduate How does quantum mechanics explain the big bang? Infinite realities?
- StayFrosty
- · Replies 1 ·
Graduate On the meaning of indeterminism of Quantum Theory
- askhetan
- · Replies 19 ·
Graduate Boson Statistics: Why Does the Rule Fail?
- phonon44145
- · Replies 7 ·
Graduate Unitary operator + Lorents transformations (question from Peskin)
- center o bass
- · Replies 1 ·
Graduate Michio Kaku's teleportation device
- Cody Richeson
- · Replies 11 ·
Graduate Charge as a coefficient of the Lie algebra?
- help1please
- · Replies 14 ·
Graduate How do I expand gamma matrices without adding a unity matrix?
- help1please
- · Replies 12 ·
Graduate Problem understanding Green's function equality in Messiah QM II
- tobe
- · Replies 2 ·
Graduate Quantum Tunneling Probability for a rectangular barrier
- Stevenpd
- · Replies 7 ·
Undergrad Quantum Tunneling VS Water (or any other) Waves
- QuantumMan
- · Replies 5 ·
Graduate Quark-Gluon Plasma: Temperature, Validity & Quantum Theories
- SW VandeCarr
- · Replies 7 ·
Graduate What is the range of angles for the quantum spin correlation formula?
- gametheory
- · Replies 7 ·
Graduate SU(2) generators in j=1, and pauli uncertainty
- Kontilera
- · Replies 1 ·
Graduate Time Dependence in Pictures of QM
- jonbones
- · Replies 3 ·
Graduate What is the Operator for Absolute Value of Momentum in Quantum Mechanics?
- csopi
- · Replies 3 ·
Graduate 1D Groundstate wavefunction always even for even potential?
- Wavelet
- · Replies 3 ·
Graduate Quantum linear response theory?
- baranas
- · Replies 3 ·
Graduate Radius of the electron and uncertainty
- IWantToLearn
- · Replies 3 ·
Graduate Why is the pilot-wave theory controversial ? Is it?
- nonequilibrium
- · Replies 113 ·
Graduate Conservation of momentum and uncertainty.
- dipole
- · Replies 10 ·
High School Query regarding concepts of charges
- joyraj
- · Replies 1 ·
Graduate How does conservation of energy/mass apply to neutrinos?
- Endervhar
- · Replies 17 ·
Graduate Is the Quantum Spin Complementary?
- Faradave
- · Replies 18 ·
Graduate Deriving Measurement Operators for Realistic Detectors
- Killtech
- · Replies 15 ·
Undergrad Electron Configuration for Multivalent electrons.
- Yellowcard95
- · Replies 1 ·
Graduate Spectrum of Sodium vs. Hydrogen
- roam
- · Replies 1 ·
Graduate Can a conscious observer collapse the probability wave?
- Fiziqs
- · Replies 128 ·
Graduate Question on the probabilistic nature of QM
- Wormaldson
- · Replies 94 ·
Graduate Repeling particles on a ring, minimum angular momentum.
- Spinnor
- · Replies 13 ·
Graduate Noether currents for local gauge symmetry
- szg138
- · Replies 12 ·
High School I wanted to know how it is determined uncertainty
- nebbione
- · Replies 20 ·
Undergrad Can EM Radiation Create Repulsion on Non-Magnetic Objects?
- Shriraksha
- · Replies 2 ·
Graduate How Can the Bell Experiment Be Performed with a Guaranteed Polarization?
- g.lemaitre
- · Replies 8 ·
Graduate Field theory plane wave volume integral
- center o bass
- · Replies 5 ·
Graduate The crazy world of quantum mechanics.
- Please help
- · Replies 5 ·
Graduate Plane waves and sites distance in a lattice
- AdeBlackRune
- · Replies 3 ·
Graduate Need help with Weinberg's QFT-Space inversion and time-reversal
- qinglong.1397
- · Replies 1 ·
Graduate What is the Smallest Unit of Time for Measuring Acceleration?
- SinghRP
- · Replies 1 ·
Graduate Visualising mathematical concepts in QM - comments needed
- matt2971
- · Replies 4 ·
Graduate Blurness of rings in electron diffraction
- hoshizora
- · Replies 2 ·
Universe from Nothing: A Book Review
- drphysica
- · Replies 16 ·
Graduate An issue with the vector model of spin and its operators
- JeremyEbert
- · Replies 7 ·
Graduate Equivalent vectors in a Hilbert space
- bob900
- · Replies 6 ·
Graduate Quantum Mechanical Tunneling Probability
- Demon117
- · Replies 1 ·
Graduate Double-slit experiment questions
- v6WR5Pfk6Jm4
- · Replies 3 ·
Graduate Can Two Particles Occupy the Same Position in Quantum Mechanics?
- ndung200790
- · Replies 11 ·
Graduate Big bang according to Quantum Mechanics?
- StayFrosty
- · Replies 14 ·
Graduate Photon Emission from electrons and the EM field
- Xcellerator
- · Replies 2 ·
Graduate Who does or sees an experiment on rectangluar potential barrier?
- Younghun park
- · Replies 2 ·