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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
High School Measuring a circle and the Uncertainty principle
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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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High School Potassium or other minerals and the photoelectic effect
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Undergrad Applying an observable operator on the current state
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Graduate 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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Graduate 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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Graduate Counting States / Uncertainty principle
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Graduate 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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Graduate Quantum virial and confinement
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Graduate Pascal Principle with photons in a U tube
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Graduate 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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Graduate Van der Waals Interaction
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Graduate 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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Graduate 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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Graduate I am Imran, a retired Electrical Engineer with a QM question
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Graduate 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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Graduate Flexibility in Grover's Algorithm?
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Graduate Field screening in the electron
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Graduate What is the hardware for quantum gates?
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Graduate Bra-ket notation to Matrix for entangled pairs
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Graduate Where does photon interference happen
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Graduate Classical versus quantum information
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Graduate Rigorous treatments of double-slit , quantum eraser, etc.
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Graduate Probability current proportional to density
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Graduate 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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Graduate Radiation of an accelerated charge
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Graduate Probabilities & Observed Reality
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Graduate Is Eventum Mechanics the Same as CSL?
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Graduate How to Measure Entangled Photons in the 45/135 Basis with Wave Plates and PBS?
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Graduate Disturb a complex massive field, apply force ?
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Graduate What is entanglement purification and how does it work?
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Graduate Number of Photons In Each Section
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Graduate Peculiarities of photons in quantum optics
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Graduate Adroit Measurements in Reaching Conclusion
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Graduate Two complex fields + interaction, conserved current?
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Graduate How to graph Dirac equation, some complex numbers?
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Graduate Macroscopic quantum effects and gravitational wave detector
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Graduate What Happens to Entangled Photons at a Beam Splitter?
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Graduate Bruce Rosenblum, author of Quantum Enigma
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Graduate How Do Wave Plates Influence Photon Entanglement and Measurement?
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Graduate Evolution of Photons from Bell-States to Separable States
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Graduate Collapse Models of Quantum Mechanics
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Graduate Pilot wave without non-locality
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Graduate Quantum Teleportation / Beam Splitters
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Graduate How Is Mass Generated Dynamically in Quantum Field Theory?
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Graduate 3D phase space of point particle and spinors.
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Graduate Majorana equation in Algebra of Physical Space
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Graduate Can this classical double-slit experiment duplicate loss of interference?
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Graduate Question about quantum statistical mechanics and thermodynamic arrow of time
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Graduate Shape-Invariant Potentials in N=2 SUSY QM
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Undergrad Clarification of the Pauli exclusion princple
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Undergrad Why does the Dirac equation lead to spin 1/2?
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Undergrad Complete list of Feynman diagrams
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Graduate What is a 'Quantum Coherence'?
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Graduate Path Integral QM: Intro and Forward/Backward Scattering
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High School Bohr's duality paradox 100 years later?
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Graduate Possible similarity between Classical and Quantum photon definition
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Undergrad Vector Notation of Quantum States for 2 Qubit System
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Undergrad Pauli exclusion principle and Hermitian operators
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Graduate Do QED effects make a huge change to the position of the electrons?
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Undergrad Unveiling the Mystery of Entangled Particle Spin
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Graduate One Loop Correction to a 4 pt. function in 3 dimensions
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