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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
Undergrad Is there a reason eigenvalues of operators correspond to measurements?
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Undergrad The HOM Effect, Path Entanglement, and Generation
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Undergrad Dispersive approximation (limit) in the Jaynes-Cummings Model
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Graduate What is Hermitian? Definition & Summary
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Graduate Definition of Expectation Value (EV)
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Undergrad Hamiltonian Commutation Question
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High School Is Bell's inequality Lorentz invariant?
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High School Notion of a zero dimensional point particle?
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Graduate First Chip-to-Chip Quantum Teleportation
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Graduate Does Dim Reg really avoid a photon mass?
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High School Backscattering of photons in dim = 1
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Undergrad Understanding Spherical Tensors & Their Applications
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High School Neutron Decay Outside of a Nucleus Near Absolute Zero
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Graduate Measurements of multipartite entanglement
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Undergrad Imagining the EPR paradox/quantum entanglement
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Undergrad Entanglement after measurement
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Undergrad The construction of particles in QFT
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Graduate Trace of a product of Dirac Matrices in a Fermion loop
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Undergrad How does a quantum computer work?
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Undergrad Momentum Eigenstates: Writing & Conservation
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Undergrad Why Do We Have The Effect Of Spontaneous Emission And Absorption
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Undergrad What are the degrees of freedom of a quark?
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Undergrad Wave function of a laser beam?
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High School Do photons bunch up at an interface? Can they lase (laze?)
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Undergrad Can a simulation hypothesis simulate quantum physics?
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Undergrad Simulation Hypothesis: Quantum Computer Modeling
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Graduate Vacuum energy density after spontaneous symmetry breaking
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High School Photon Energy & Wave Amplitude
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Undergrad Local Causality and Bell's Second Theorem
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Undergrad Did Erwin Schrödinger propose that reality could be contradictory?
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Undergrad About the repulsive force between two electrons
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Undergrad Can we physically realize unbound states?
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High School Can Hydrogen Atoms on Earth and the Moon Share Electrons?
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Undergrad Finding the Error in Computing Spherical Tensor of Rank 0 Using General Formula
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Undergrad The free particle in spherical coordinates
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High School What is the speed of electron movement in atoms at different temperatures?
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Undergrad Why is the lowest energy level close to the center?
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Undergrad Information in a light beam relative to the width of the beam?
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Graduate The probability of finding R out of N bosons in one half of a volume
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Undergrad Equal or larger/smaller versus larger/smaller in boundary conditions
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Undergrad Superposition of Phases: A Key Concept in Connecting QFT and Statistical Physics
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High School Exploiting radiocarbon dating for FTL communication
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High School Position of a particle and photons
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Undergrad Functional Derivatives: Overview & Tips
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High School The use of the dx in the quantum state vector integral
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High School How to teach beginners in quantum theory the POVM concept
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Undergrad How does the N signify the indistinguishability in the Gibbs Paradox?
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Undergrad Why are cumulants extensive and moments are not?
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Undergrad Quantum state variable for entangled system
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Undergrad Location of the quantum effect
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Undergrad Rigged Hilbert Space X: Eq (1) and (2)
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Undergrad Higgs Boson: What Gave Quarks & Leptons Mass?
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Undergrad Cosmic Rays could reveal if we're actually living in a simulation?
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Graduate Classical limit of the propagator
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Undergrad How Do Quantum Equations Predict Outcomes in Research?
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Undergrad Can Different Shapes of Slits Affect the Diffraction Pattern of Single Photons?
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Undergrad What happens if a low energy photon collides with an atom in the ground state?
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Undergrad QM & Motion: Is There Consensus?
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High School The nature of virtual photons in quantum electrodynamics
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Undergrad QED & In-Ground Electrons: Why No Photon Emission?
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Graduate Fermion mass terms in Peskin and Schroeder's book
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Undergrad Taking a partial trace of a multipartite state for measurement
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Undergrad Using the Variational Method to get higher sates
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Undergrad An elementary question about rotations
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Undergrad Why in BEC we must separate number of particles of ground state?
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Graduate Vibrational relaxation through electron-hole pairs
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Undergrad Do macro objects get entangled?
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Undergrad Why don't Cooper electrons accelerate infinitely?
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Graduate Stuck on evaluating this functional determinant
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Undergrad Difference between electrodynamic suspension (EDS) & quantum levitation?
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Undergrad Integral in a variational principle problem
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Graduate Expectation Value of a Stabilizer
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Graduate Constructive QFT - current status
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Graduate Vector and Axial vector currents in QFT
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Undergrad Even/Odd solutions for particles in boxes
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Undergrad Best sources to understand the Wigner-Eckart theorem?
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Undergrad Why does the energy level of an electron in an atom have a width?
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Undergrad Question regarding a Free particle and Hilbert space (QM)
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Undergrad What Do Most Physicists Call the Quantum-To-Classical Cut?
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Undergrad Compatible observables and commutator
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Graduate Gauge Invariance of the Schrodinger Equation
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High School Electrons in a nonmoving conductor and non-varying magnetic field
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Graduate Reading canonical commutation relations from the action (QHE)
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Undergrad Uncertainty between position and angular frequency - is this correct?
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Undergrad Questions about Rotation Groups in Physics
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Graduate E-writing Action on a different slice of space-time, Quantum Hall Effect
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Undergrad Summary of the Universe (2019 version)
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Undergrad Matrix Representation of the Angular Momentum Raising Operator
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Graduate Qubit Energy Level Required to be Unevenly Separated
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Graduate What Is the Renormalized Gluon Dressing Function?
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Undergrad Deduce if the spectrum is discrete/continuous from the potential
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Undergrad Is the wavefunction always an analytic signal?
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Graduate What Are the Key Insights into Electron Triplet States in Quantum Physics?
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High School Probability of spin in the +x direction
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Undergrad Why do we need two representations of SU(3)
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Undergrad How can the photon wave function be described?
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High School Does Retrospective Indeterminacy Reveal a Deterministic Universe?
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Graduate QHE ' the effective action should be a local functional'
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Graduate QHE: rotational invariance, no terms linear in E or B
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High School Measurement postulate = von Neumann’s projection postulate?
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