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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 Direction of revolution of atomic electrons
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Undergrad Absorption of photons by electrons
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Graduate Understanding Bound States in Quantum Mechanics
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Graduate How Can You Have Negative Energy in a Positive Potential?
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Graduate Typo in Kapusta or Ashok Das ? Formula for thermal propagator
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Graduate Euclidean QFT and thermodynamic analogy
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Understanding How to Manage Your Finances
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Graduate Electromagnetic casimir effect
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Graduate How two quantum systems interact ?
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Graduate Can QT estimate the ionization energy of neutral Helium, He I?
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Graduate What Does Not Local in Space Mean in Relativistic Quantum Mechanics?
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Graduate Parity Operator, Symmetric Potential: Is V=PV?
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Graduate 'Spookytech'? Technology based on quantum interactions
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Undergrad Question about the Photoelectric Effect
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Graduate Transforming a Lorentz Scalar: psi-bar x psi x y_0
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Graduate Clarification on wavefunction collapse
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Graduate Quick QM: Why Does Schrodinger Eq Being 1st Order Matter?
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Graduate Pψ=aψ and wave function uniqueness
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Graduate Orthonormal basis and operators
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Graduate Wavefunction collapse: is that really an axiom
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Graduate Usefulness of Heisenberg picture?
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Graduate How does Helium-4 exhibit bosonic properties despite being composed of fermions?
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Graduate Angular Momentum Ladder Operators
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Graduate Photon, black hole, Wikipedia quote
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Graduate How can one ensure Lorentz invariance when using an external field in QFT?
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Graduate Are All Particles in Quantum Physics Excitations of Fields Like the Higgs Boson?
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Graduate Can Energy Be Calculated from a Single Point in Full CI Calculations?
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Graduate How observation leads to wavefunction collapse?
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Graduate Bell States: Problem & Effects of Phase Gate
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Graduate Spin Interference: Looking for Thought Experiments with Single Electrons
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Undergrad What Happens to a Particle's Energy When a 1D Box Shrinks?
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Graduate Solving Shor's Algorithm to Factor 15: Results & Analysis
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Graduate Significance of the hamiltonian commuting
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Graduate Is the Ground State of a System Always Pure?
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Graduate Can Entangled Photons Reveal Which-Path Information in a Double Slit Experiment?
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Undergrad Are Atoms Affected by the Big Bang Theory?
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Graduate On the helicity of the electrons
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Graduate Symmetry and conserved probability current for wave functions
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Graduate How are the positions of particles described in QFT?
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Graduate Understanding Time in Quantum Physics: Absolute vs. Relative Concepts Explained
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Graduate A photon as a phonon in ether?
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Graduate Operator Question: Evaluating \langle x |\hat{p} | \psi\rangle
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Graduate What is the relationship between wave functions and molecules?
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Graduate Is Modern Aether Theory Valid Against Einstein's Relativity?
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Undergrad About the radiation of blackbody
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Graduate Operator in non-orthogonal basis
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Graduate Who Developed the Sequential Stern-Gerlach Apparatus and Formalism?
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Graduate Complex simple Lie algebras classification
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Undergrad How The Mass Of an Electron Was Worked Out
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Graduate Very basic questions about QFT
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Graduate Understanding Spin 1/2 Particles - Writing Expressions
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Undergrad What factors determine the ability of a substance to transmit light?
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Graduate Afshar 2 slit experiment-peer review
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Undergrad What is the force that holds atoms together in a substance?
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Graduate Photons, particles and wavepackets
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Can a Cat with Toast Defy the Laws of Physics in Quantum Mechanics?
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Graduate Is Quantum Chaos Real Despite Contradictions in Physics?
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A Book on Quantum Physics by a Russian Author
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Graduate Uncovering the Mystery: Can Atoms Produce Sound Waves in Quantum Physics?
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Undergrad What do the basic notations in quantum physics mean?
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Graduate How Do Photons Exhibit Wave Interference?
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Graduate Understand Shor's Algorithm & Quantum Fourier Transform
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Graduate Commutator with r, p_r and angular momentum
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Graduate Time independent perturbation theory
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Graduate Photon Particle Wave or Straight?
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Graduate Is the Casimir Effect a Viable Source of Free Energy?
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Graduate Gordon decomposition an right current
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Graduate Pure Electron Diffraction Experiments
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Graduate Quantum uncertainty and digital data
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Graduate The use of Eigenvalues/function in QM
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Graduate Field Quantization: Is "Forces Exchanged by Particles" a Deep Concept?
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Graduate Understanding the Concept of Instantaneous Potentials in Quantum Mechanics
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Graduate Tracking or tagging a single atom in a gas
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Undergrad Binding Energy in U-235 and daughter atoms
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Graduate What is the Significance of Substituting p for -p in the Klein-Gordon Equation?
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Graduate Unique to within a constant factor?
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Graduate Free-Air Transmission and Quantum Effects?
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Graduate Understanding the Probability Current J
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Graduate Quantum Decoherence & Measurement Time
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Graduate Interference of two particles - how does it work?
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Graduate Time independent perturbation theory
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Graduate Entanglement and two electrons separated by the universe
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Graduate Distinguishing between superposition and hidden information
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Graduate Quantum Spin: Forgetting, Entanglement & Change
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Graduate Physical Meaning of QM Expectation Values and other ?s
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Graduate Application of true randomness
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Graduate How is electron formed? Why does it travel?
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Undergrad Absorption Spectra - Questions & Answers from NZ High School Student
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Undergrad How to Explain Wave Phase Difference Physically?
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Graduate Spin Matrix for Arbitrary Spin: A Closer Look
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Graduate How exactly does diagonalization work and how is it useful in qm?
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Graduate What is a Spinor? Is it the Coefficients of a State Ket?
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Graduate Propagation speeds in literature
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Graduate Periodic potential: Bloch's theorem
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Graduate Understanding Light Propagation for Quantum Field Theory
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Graduate What is renormalization and what does it do?
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Graduate P&S Chapter 2: Derivation of the KG Hamiltonian
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Undergrad Does Light Ever Travel Faster or Slower Than Speed C?
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Graduate Exploring the SU(2)_L x U(1)_Y Gauge Field Theory of Electroweak Interaction
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Graduate Which Formula Correctly Represents the Kinetic Orbital Momentum of an Electron?
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