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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

Undergrad One does not “prove” the basic principles of Quantum Mechanics
Graduate References: continuum approximation of discrete sums?
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Undergrad Can I use the Schrodinger picture when the Hamiltonian is time-dependent?
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Time Ordering Operator for Fermions & Bosons
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High School Curious about this proposition for measuring for FTL
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Graduate Why Are the Peaks at Δ = 0 and Δ = ω_m Equally High?
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Undergrad What is the significance of recoupling in spin network theories?
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Undergrad Use of Gell-Mann matrices as the SU(3) basis for gluon states?
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Undergrad Axion Interaction: Weak & Strong Nuclear Forces
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Undergrad Query on use of prism in delayed choice quantum eraser experiment
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Undergrad Is the superposition of mesons (such as pion) a new particle?
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Undergrad How Is the Matrix V Related to Dirac Spinors and Tensor Products?
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High School Quantum field theory and wave particle duality
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Undergrad Single Photon States: Definition & Real-Life Applications
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Undergrad Evaluating the quark neutrino mixing matrix
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Graduate About the rigged Hilbert space in QM
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Undergrad Is a Photon Considered a Real Object?
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Graduate How are quantum optical experiments designed? ;)
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High School Collapse and unitary evolution
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High School What about if I apply HUP to myself?
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Undergrad Partial trace and the reduced density matrix
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Undergrad What is the probability of an electron emitting a photon?
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High School Can we all agree "consciousness" is not required to collapse wave function?
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Undergrad Direction of motion of particles with total spin under magnetic field
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High School How to evaluate whether a photon's polarization is in superposition?
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Undergrad Three Plus Anti-symmetric Particles
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High School Can an electron remain in an exited state forever with constant energy input?
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High School What happens when ethane absorbs UV light?
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Undergrad Shankar on constraints and free parameters for a particle in a box
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High School Why does anyone think gravity might collapse wave function?
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Undergrad Spinors and eigenspinors confusion
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Graduate Adiabatic theorem for a 3 level system
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High School Does the bomb experiment do a measurement?
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Undergrad How Do Quantum Numbers Influence Energy Levels in Atomic Systems?
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Undergrad Annoying detail in derivation of Compton scattering
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Undergrad Double-Slit Experiment: Does rate of photon emission matter?
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Undergrad Young's slit experiment with single photons
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Undergrad Are Planck's black body oscillators QHOs?
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High School Is there a resource that discusses wave collapse experiments?
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Graduate Gauge theory on a lattice: intertwiners, gauge potentials...
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High School The wave solution to the Photoelectric effect
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Graduate Proving Subadditivity of Entropy for Uncorrelated Systems in Pure States
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Undergrad What does decoherence have to do with phases?
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Undergrad Spectral Decomposition of the State Space
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Graduate Induced dipole moment (adiabatic) following the rotating E-field
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Undergrad Double Slit Experiment Mathematics
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Graduate Question about factoring the Klein-Gordon equation
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Undergrad Few Questions about: TU delft "A loophole-free Bell test"
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Mathematical representation of two-entangled q-bits?
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High School Non-parallel double slit experiment
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Undergrad Quantum fluctuations & 'virtual particles'
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High School Photon-Electron-Quanta: Explained Simply
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Graduate The Effect of Time-Varying Electric Fields on a 2-Level Ion System
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Graduate Normalization of Morse potential wavefunctions
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Undergrad How Is the Planck Relation E=hf Derived?
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Undergrad Infrared Divergences in Vertex and Self Energy diagrams
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High School How Can We Resolve Noise from Low Frequency Quanta in Electromagnetic Waves?
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Undergrad Inner products and wavefunctions
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Undergrad Explicit non-local form for the vector potential?
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Graduate Cause of spontaneous emission?
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Undergrad Discover Beginner-Friendly Books on Quantum Information and Computation | Q&A
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Undergrad Why Does Quantum Entanglement Seem Puzzling Compared to Everyday Correlations?
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High School Is there any practical proof that quantum entanglement really works?
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High School Quantum mechanical one-liners?
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High School I have question regarding quantum physics (localizing an electron)
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High School How do particles get their spin?
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Undergrad Understanding Light Polarization: An Intuitive Explanation
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Undergrad Lifetime and Linewidth: Solving the 2π Factor
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High School Why can gravity escape from a black hole?
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High School So this is a bit of a duplicate: Is the universe fully transparent to gravitons?
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Graduate Spin networks with different intertwiners
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Undergrad Al26 Meta Stable State: Forbidden Xray Transition?
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Undergrad Understanding Entanglement and Born's Rule in Photon Polarization Experiments
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High School What are Feynman Diagrams and how do they help explain Quantum Electrodynamics?
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Undergrad Feynman diagrams and sum over paths
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Undergrad Is elastic scattering of electrons by a solid possible?
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Undergrad How Can Laser Light Mixing Reveal Quantum Entanglement?
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Undergrad Error of the WKB approximation
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Undergrad What causes qubit superpositions to form?
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High School Why doesn't the detector affect the result?
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Undergrad The pattern of one photon at a time passing through large-distance setups?
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Undergrad Double-slit experiment, determining which slit an electron passed thru
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Graduate Changing Hamiltonian with some eigenvalues constant
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Undergrad How is an interference pattern changed by an external field?
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Graduate The Probability Distribution of a Bosonic Field when Emitted
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Undergrad Other ways of finding expectation value of momentum
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Undergrad Looking For Explanation of New Interferometer Article
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Undergrad Is the magnetic moment of a hydrogen atom not equal to Bohr's magneton?
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Undergrad Question on bra vs ket notation
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High School Tachyons and imaginary numbers?
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High School Tensor product of operators and ladder operators
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Undergrad Why are Planck units considered fundamental?
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Undergrad Double-slit experiment with momentum entangled pair of photons
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Undergrad Speed of individual photons in a vacuum?
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Undergrad Measurement accuracy or variation
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Undergrad How does a process of a Raman transition break quantum entanglement?
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Undergrad What is this notation D|(n;n')|, and how to solve it?
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Undergrad Spin expectation value for one particle vs actual measurement
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High School How is energy transferred from a wave to a photon?
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Undergrad About photon-polariser interaction quantum-molecular-level mechanics
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Undergrad Curious about an idea of a modified polariser to send signals with QE
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