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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 Understanding Barandes' microscopic theory of causality
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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 Some derivation in QFT in Curved SpaceTime by Birrell and Davies
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229
Undergrad The imaginary part of the wave function
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7
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Graduate Consistency of Relativistic QM
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2
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227
Undergrad Scattering Theory: Difference between use of scattering amplitude and Born approximation?
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165
High School Can gravitons be detected?
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Graduate Wavefunction in the context of quantum physics
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16
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Graduate Is the 2-qubit singlet state invariant under bilateral projections?
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8
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958
Undergrad Single vs. Double slit coherence clarification please
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10
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Undergrad Which-Path from Global Momentum Measurement in Double Slit
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3
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490
Graduate Two equivalent statements of time reversal symmetric Hamiltonian
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13
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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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457
Undergrad What forces a magnet's field to track the rotation of the magnet?
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555
Undergrad Klein-Gordon equation in the nonrelativistic limit
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3
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682
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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2
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607
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 HUP in condensates?
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1
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434
Graduate Problem while simulating spin polarized interacting SSH model
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1
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High School Is it correct to state that all measurements count photons?
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11
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992
High School Mass & energy increments a la e = mc^2
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9
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695
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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595
Undergrad Question about photon entanglement and causality
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6
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900
Undergrad Need Help on Particle Spin
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4
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887
Undergrad Can (ordo) Fermions convert to Bosons?
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5
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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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745
Undergrad Entanglement might be the result of an underlying law?
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4
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842
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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718
Graduate Lesser Green's function
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655
Undergrad What does the product part of Laughlin wave function mean?
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574
Undergrad Does a qubit break interference in the double slit experiment?
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10
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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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719
Undergrad Is Maxwell's electromagnetism an effective (field) theory?
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3
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700
Undergrad Why can’t photons “pile up” to eject an electron?
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3
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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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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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Undergrad Commutation of operators for particle in a box
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16
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High School A Time Crystal Visible to the Human Eye
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5
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Undergrad Quantum Entanglement and Synchronization
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6
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Undergrad Electron energy in atoms
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10
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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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585
High School Quantum entanglement
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1
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635
Undergrad Quantum behaviour of an electron around a positively charged sphere
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18
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925
Undergrad Visual depiction of atomic orbitals
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12
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856
Undergrad Bloch Sphere generalization for more than one qubit
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4
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794
Undergrad Probabalistic determination Photon Entaglement
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6
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674
Undergrad Commutator of x and p in quantum mechanics
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4
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889
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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Undergrad How can quantum physics contribute to medical physics?
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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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Undergrad Emission probability in blackbody spectrum derivation
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Undergrad Feynman's derivation of average square distance variation in Brownian motion
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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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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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5
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718
Undergrad I would like some assistance working with commutators
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785
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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6
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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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9
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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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3
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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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7
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High School Feynman QED Questions
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15
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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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