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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.

Quantum Interpretations and Foundations

Graduate Universal quantum physics
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Insights A Beginner Physics Guide to Baryon Particles
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Insights The 7 Basic Rules of Quantum Mechanics
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Insights What is the Anatomy of Compton Scattering?
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High School Guidelines for Quantum Physics Forum
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Graduate Is the 2-qubit singlet state invariant under bilateral projections?
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Graduate Two equivalent statements of time reversal symmetric Hamiltonian
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13
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485
Insights Quantum Entanglement is a Kinematic Fact, not a Dynamical Effect
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22
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Undergrad Hooke's law: Constructing a force operator for electron orbitals?
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287
Undergrad What forces a magnet's field to track the rotation of the magnet?
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388
Undergrad Klein-Gordon equation in the nonrelativistic limit
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3
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500
Undergrad Antilinear Operators
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11
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Undergrad Entanglement swapping in the context of Indivisible Stochastic Process
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475
Graduate Could there be a "Communication Theorem" instead of a "No-Communication Theorem" in quantum entanglement?
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4
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Undergrad Single vs. Double slit coherence clarification please
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7
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614
Undergrad HUP in condensates?
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1
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331
High School Is it correct to state that all measurements count photons?
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11
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Undergrad Angular Momentum Vector and Its Magnitude
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14
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Undergrad Antiproton and positron annihilation
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2
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482
Undergrad Question about photon entanglement and causality
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6
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771
Undergrad Need Help on Particle Spin
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4
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767
Undergrad Can (ordo) Fermions convert to Bosons?
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5
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794
Undergrad Elementary question about comparing notations of inner product
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6
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Undergrad The Power of QM and QFT
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4
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624
Undergrad Entanglement might be the result of an underlying law?
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4
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684
Undergrad Importance of Hanbury Brown and Twiss experiment
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13
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Undergrad Prof Mike Wiest's proposed link between quantum and consciousness
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18
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Graduate Is It Known For Sure Infinites In QFT Are Caused Using a Continuum?
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3
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592
Graduate Lesser Green's function
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Undergrad What does the product part of Laughlin wave function mean?
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1
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Undergrad Does a qubit break interference in the double slit experiment?
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10
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866
Undergrad Schrödinger equation and classical wave equation
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High School New idea about wave-particle duality - looking for feedback/criticism
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1
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554
Undergrad Is Maxwell's electromagnetism an effective (field) theory?
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3
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568
Undergrad Why can’t photons “pile up” to eject an electron?
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3
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648
Undergrad The Extended Wigner's Friend Scenarios
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Graduate I have some naive questions about the Reeh-Schlieder theorem
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Undergrad Do ensemble-based predictions truly describe real finite systems?
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4
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535
Undergrad How strong is the justification for low probability extreme thermal fluctuations?
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6
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High School Is a table levitating possible, even at a minuscule probability?
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Undergrad Energy*time uncertainty for particle decay
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27
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841
Undergrad Commutation of operators for particle in a box
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16
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720
Undergrad Quantum Entanglement and Synchronization
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6
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622
Undergrad Electron energy in atoms
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10
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773
Graduate What is the connection between entanglement and the no-cloning theorem?
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High School Two/three photon absorption chemical substance producing photons for electricity generation
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473
High School Quantum entanglement
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525
Undergrad Quantum behaviour of an electron around a positively charged sphere
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18
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Undergrad Visual depiction of atomic orbitals
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12
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High School Can gravitons be detected?
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28
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Undergrad Bloch Sphere generalization for more than one qubit
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4
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Undergrad Probabalistic determination Photon Entaglement
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6
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Undergrad Commutator of x and p in quantum mechanics
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4
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Graduate Physical properties of the vacuum in GR vs. QFT
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15
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Graduate Confusion about creation/annihilation operators with interaction
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High School Schrödinger's cat question
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Graduate Eigenstates of the Klein Gordon Field Operator
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Undergrad Direction of time-evolution in time reversed wave functions
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Graduate Angular momentum uncertainty principle and the particle on a ring
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Graduate Effects of perception
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4
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612
Undergrad Emission probability in blackbody spectrum derivation
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580
Undergrad Phase and group velocity for the wave function
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14
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Undergrad Validity of identical eigenfunction of commutating operators
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12
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Undergrad Action of an Hermitian unitary operator member of SU(2)
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Undergrad About concept of wave-particle duality
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Undergrad Hydrogen 21 cm line time?
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Undergrad I would like some assistance working with commutators
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Undergrad Shape of wave function (probability distribution) of a single photon
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Undergrad Would gravitons theoretically act like photons?
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Graduate Baryon CP Violation Observed at CERN
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Graduate Geometry Topology and Physics: Nakahara, Chapt. 1: Weyl Ordering
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High School Energy-time uncertainty relation for a volume and macroscopic objects?
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Graduate What happens when an operator maps a vector out of the Hilbert space?
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High School The wave function of the electron doesn't collapse when passing through air?
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Undergrad New book on algebraic quantum physics
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Undergrad A question about density matricies
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Undergrad Density matrix representation of a density operator
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Undergrad How to understand quantum computers?
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Undergrad Bose-Einstein statistics and the Photon
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Graduate Explicit construction of Galilean-invariant space
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Undergrad Addition of angular momenta
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Undergrad Quantum decoherence vs. measurement process
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Undergrad Quantum eraser experiment
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Graduate Can scattering experiment be used to determine location and momentum of an electron?
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Insights Quantum Computing for Beginners
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Undergrad Bob and Alice with a Bell pair
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High School Gravitons vs photons: Does the size of the atom make any difference?
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Undergrad What's the deal with instantons?
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Undergrad How to derive orbital angular momentum of spins in quantum mechanics?
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Undergrad Deriving Bogoliubov transformations correctly
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Undergrad Dirac's 1972 Boston talk on Projective geometry in quantum mechanics
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High School Feynman QED Questions
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Graduate Scattering cross section between charged particle and magnetic moment
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Undergrad More information on the momentum eigenstate in the position basis
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Undergrad Measurement problem - will this work?
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Undergrad Quantum wavelength in gravitation
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Graduate Pauli–Villars ghost fields?
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Graduate Magnetic field produced by moving charge in operator form
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Undergrad Tensor products and simultaneous eigenstates
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Undergrad Molecular Quantum Computer Progress
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Undergrad Coherence time for repeated spin measurements
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Graduate John Bell 1964 toy model for spin
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High School Thought experiment: Beyond the slowest measurable speed?
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Undergrad Black Hole Fermion Count
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Undergrad Free Schroedinger equation: time separation
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