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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 Valid local explanation of Bell violations? (Pegg et al., 1999; 2008)
Undergrad Is the change in energy due to light-shift the same in all levels?
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Undergrad Question on circular polarization and the quantum eraser
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Undergrad Understanding Measurement Probability in Electron Spin: Explained by Susskind
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Undergrad Calc QED Charge Particle Repulsion/Attraction
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Undergrad Are entangled particles really separated?
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Undergrad Question on Harmonic Oscillator Series Derivation
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Undergrad Quantum Tunneling in an STM: ELI5 Requested
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Undergrad Spontaneous parametric down-conversion entanglement using BBO
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High School Are photons entangled with a component of the atom that emitted them?
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High School Quantum info and its indestructability
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High School Understanding Circumflex Operators: Get Help Now
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Undergrad Relation between blackbody radiation and spontaneous emission
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Undergrad Constructive Interference of Light
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Undergrad Do Interacting Bosons with Spin 2 Exist for Gluon-like Charges?
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Undergrad Rabi Hamiltonian : counter-rotating terms
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Graduate The exciton dynamics in the FMO complex
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Graduate Non-perturbative description of QFTs
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Undergrad Experimental realizatoin of sequential Stern-Gerlach's
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Undergrad Functor between the category of Hilbert Space and the category of sets
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High School Question about this equation for the expectation value
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Undergrad Explaining the Bloch-Siegert Shift - A Beginner's Guide
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Undergrad Understanding how to derive the Feynman rules out of the path integral
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Graduate How can a mixed state particle absorb a "quanta" of energy?
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Graduate Is there a symmetry in the Unruh effect?
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Undergrad To understand Bell's inequality
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High School How does a photon not "feel" electromagnetism?
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Undergrad Bell's Inequality => 4 entangled Photons impossible?
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Undergrad Dimensionless vs. dimensional "constants"
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Undergrad How to work in the |F,m_F> states in hyperfine structure
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Graduate Question about plabic graphs in the amplituhedron approach
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Undergrad Physical parameters for spin 1/2 particles
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Undergrad Issue with wavenumber in the free particle wavefunction
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Undergrad Simultaneous measurements of 1 observable
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Graduate Eigenvalues of Hyperfine Hamiltonian
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Undergrad Is the classical relation between energy and momentum valid in QM?
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Undergrad Different reference frames in QM
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Undergrad The Central Field Approximation for Many-Electron Atoms
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Undergrad Does the wave function spread more quickly after it is observed?
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Graduate Wave Function Collapse and Thermodynamic Irreversible Processes
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Undergrad Classical Hayden-Preskill Randomizer
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Undergrad Angular Momentum Hydrogen Atom Problem: Physically Explained When L=0
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Graduate Heisenberg Uncertainty Relation for mixed states
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Undergrad General Magnetic Dipole Moment For an Electron in an Atom
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High School Beginner Question Regarding Entanglement
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Graduate Proton Precession in Hydrogen-Rich Liquids
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Undergrad Can two photons cancel each other?
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High School How Does the Observer Paradox in Anthropology Reflect on Cultural Understanding?
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Undergrad Understanding Covalent Bonds: The Stability of Matter Explained
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High School Photon absorption -- What happens to the excess energy?
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Undergrad Solving Schrödinger's equation for a hydrogen atom with Euler's method
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Undergrad Photon Emitted without Changing Energy Levels
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Undergrad Possible to derive geodesics from the wavefunction?
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Graduate Why physicists cannot renormalize all divergent integrals?
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High School Does the energy of an electron vary in the sublevels?
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Undergrad Intuitive/classical picture of electron spin g-factor of 2?
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Undergrad 1D wavepacket scattering simulation, momentum distribution formula
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High School Is there a magnetic interaction between light and charged particles?
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High School The match rates in Bell Tests -- Lower than 50%?
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High School Question about QM and Neuroscience
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Undergrad Block Time & Action at a Distance
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Undergrad QED - running of coupling (beta function)
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Undergrad Understanding the Effects of Parities on the Stark Hamiltonian
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Graduate How Do Feynman Diagrams Work in Phi^4 Theory?
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Undergrad Constant beam, both slits analyzed double-slit experiment?
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High School Does Quantum Eraser Prove That Intention Does Not Create Physical Reality?
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Undergrad Renormalisation scale and running of the φ^3 coupling constant
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Undergrad Shankar Quantum Mechanics, Chapter 5, Page 160-161
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High School Translating Stephen Hawking: Plus/Minus Term & Black Holes
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Undergrad Is there any physical significance to Wave Amplitude?
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Undergrad After entanglement swapping, how can we verify the new entanglement?
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Undergrad What is CV Bell State Measurement and How Does Entanglement Swapping Work?
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Undergrad Is there a smallest wavetrain corresponding with photons?
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Undergrad Green's function for massive photon theory
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Undergrad The Speed of Light: Comparing Photon and EM Wave Velocities
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High School Theory about gravitons and space warping
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Undergrad The time evolution of a Hamiltonian
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Undergrad Discrete symmetries and conserved quantities
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Undergrad Quantum Entanglement with Public Variables
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Undergrad Coherent state evolution - nonlinear Hamiltonian
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Graduate Entanglement Witnesses close to GHZ states
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Undergrad The spin of quarks in an H dibaryon
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Undergrad Some questions about the photoelectric experiment
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Undergrad Explaining the Continuous Diffraction Spectrum of a Heated Solid
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Undergrad Change of variables in the Density of States function
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Undergrad Qualitative description of stimulated emission & population inversion
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Undergrad What does motion mean in quantum mechanics?
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Undergrad Precession of spin in a magnetic field
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Undergrad Why is a laser's beam parallel?
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Undergrad On the Rydberg Constant and the Emission Lines
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Graduate Massive Vector Field: Questions & Answers
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Undergrad Quantum mechanics supports solipsism?
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Undergrad 100 boxes of Length L, an application of the famous Particle in A Box
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High School Modern Physics: Charge of Discovered Particles
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Undergrad To measure a Planck length would require a black-hole photon?
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Undergrad Is there an uncertainty between amplitude and phase in an EM wave?
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Undergrad How does this experimental result show photon emission?
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High School How is the measurement done for the double slit experiment?
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High School Understanding Single Photon Detection in the Double-Slit Experiment
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Undergrad Quantities in the Heisenberg Uncertainly Principle
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Graduate Are all quantum computers feedforward networks?
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