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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 Explanation of spin degrees of freedom with respect to the x axis
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Undergrad Attractive force of opposite charges by McIrvin
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Undergrad D'Alembertian in Sakurai's Advanced QM book
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Graduate How does Lorentz invariance help evaluate tensor integrals?
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High School Loss of information and Quantum Determinism
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Undergrad According to quantum physics, can our universe be a simulation?
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Graduate Experimental evidence of non-local quantum forces
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Undergrad Entangle Distant Particles: Theoretical Possibility?
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Graduate Does the effective action make sense in Quantum Mechanics?
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High School Understanding Color & Temperature
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Graduate QFT Srednicki Chap 6: Weyl Ordering
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High School Are photons the wave sources of Huygens-Fresnel principle?
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Insights The Classical Limit of Quantum Mechanical Commutator
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Undergrad About the Feynman Path Integral and Principle of Least Time
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Graduate Influence of strong measurements in a Two Slit Interferometer
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High School Double Slit Wave Interference With Single Electrons
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High School Was Bell's hypothesis verified?
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Undergrad Orthogonal state with m = 0 carries s = 0 .... explanation?
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Undergrad Viewing light at four trillion frames per second
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Graduate Is the Klein-Gordon equation a quantization of classical particles?
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Undergrad Doubt about a probability density
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Undergrad Confusions about some symbols in QC
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Undergrad Relational Hidden Variables (Real ensemble or thermal?)
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Undergrad Instantly reformable wave packets instead of "particles"?
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High School "Slowly varying" potential for WKB approximation
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High School Heisenberg's uncertainty principle - does it always apply?
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Undergrad Pauli spin matrices under inversion and 180 degree rotation?
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Undergrad Solving the Quantum Mechanics of a Hydrogen Atom
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Undergrad Electron wave funtion harmonic oscillator
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Undergrad What Is the Correct Order for Multi-System Bra Vectors in Quantum Mechanics?
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Undergrad Projection Operators: Pi, Pj, δij in Quantum Mechanics
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Undergrad How are apparently 'continuous' blackbody spectra formed?
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Undergrad Fine Structure Spectra: Understanding Electron Intrinsic Spin Effects
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Graduate Are there conditions for the vanishing of geometrical phases in QM?
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Graduate Dipole moment operator and perterbations
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Undergrad Why does a photon have parity -1
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Undergrad What is the failure of superposition in quantum mechanics?
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Undergrad Are electromagnetic waves sine waves?
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Graduate Crossing degeneracies and geometrical phases
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Undergrad Applying an observable operator on the current state
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Suppose there is an extra compact dimension, and suppose
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Graduate How to prove this property of the Dual Strength Field Tensor?
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Graduate What does "solving a quantum mechanics problem" mean?
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Infinite Photons: How Can an Infinitesimal Time Range Create an Infinity?
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Undergrad Pauli matrices and shared eigenvectors
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Undergrad The Schmidt decomposition in QC
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Undergrad Calculating Momentum Operator Matrix Elements from <φ|dH/dkx|ψ>
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High School Is spacetime a quantum error correcting code?
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Counting States / Uncertainty principle
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Rotational energy levels vs l quantum number
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Undergrad How does the Pauli exclusion principle work?
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High School Does a photon contain a pair of spinning charges?
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High School What's causing the "spooky action at a distance?"
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High School Double Slit experiment and the path of least Action
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High School Is it possible to change a fundamental property of a particle?
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Quantum virial and confinement
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Pascal Principle with photons in a U tube
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Quantum coherence in a gas sample
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Graduate Why the probabilistic approach is not more prominent in QFT?
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High School How can you ensure that the particle has already been entangled?
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Van der Waals Interaction
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Difference between chemical potential, ionization energy, band gap energy, and Fermi level?
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Graduate Can an object be at rest in its own reference frame?
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Can EM fields exhibit the same energy-momentum tensor as gravitational waves?
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High School How do we know the electron is not a field of energy?
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Graduate Starting with the Schrodinger equation, how do we find the Hamiltonian matrix?
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Undergrad Can Compton scattering increase the energy of photons?
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I am Imran, a retired Electrical Engineer with a QM question
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Charged particle on a sphere with magnetic dipole at its center
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High School Can Molecules Have Defined Position and Momentum Before Measurement?
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Undergrad Why Is My Fourier Transform of a Gaussian Incorrect?
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Flexibility in Grover's Algorithm?
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Field screening in the electron
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What is the hardware for quantum gates?
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Bra-ket notation to Matrix for entangled pairs
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Where does photon interference happen
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Classical versus quantum information
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Rigorous treatments of double-slit , quantum eraser, etc.
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Probability current proportional to density
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Heisenberg-Robertson uncertainty relation vs. noise-disturbance measures
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Graduate Examining Coherent States: a|0⟩=0|0⟩=0
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Undergrad What is passive locality ? Bell's Theorem.
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Radiation of an accelerated charge
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Probabilities & Observed Reality
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Is Eventum Mechanics the Same as CSL?
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How to Measure Entangled Photons in the 45/135 Basis with Wave Plates and PBS?
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Disturb a complex massive field, apply force ?
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What is entanglement purification and how does it work?
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Number of Photons In Each Section
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Peculiarities of photons in quantum optics
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Adroit Measurements in Reaching Conclusion
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Two complex fields + interaction, conserved current?
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How to graph Dirac equation, some complex numbers?
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Macroscopic quantum effects and gravitational wave detector
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What Happens to Entangled Photons at a Beam Splitter?
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Bruce Rosenblum, author of Quantum Enigma
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How Do Wave Plates Influence Photon Entanglement and Measurement?
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Evolution of Photons from Bell-States to Separable States
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Collapse Models of Quantum Mechanics
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Pilot wave without non-locality
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