Quantum Physics Forum

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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 Alternative model for counterfactual definiteness in Bohm-like EPR
Path Integrals in QED: Solve by Substituting Classical Solution?
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A silly question I'm sure about Feynman's many paths
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Moments in QM: When Can I Say JLS^2 Approx Equal JL+S?
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Uncertainty principle violation?
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Quantum Tunneling - some silly thoughts
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Parallel universes and the Quantum Field
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Electron Phasepositive and negative?
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Cutting off our Ignorance:renormalization
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Basic Explanation of Boson: What is it?
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When does entanglement actually end?
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Producing Pure States in Practical Systems: Challenges and Compromises
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Plotting Orbitals: Easy Formulas for Non-Physicists
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Why can fermions occupy only one state and
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Integer quantum hall effect - edge states/bulk effects
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On the definition of Von Neumann entropy
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Auto-Compensating Polarization Changes with Mirror/Reflector and Faraday Mirror
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What Is the Explanation for the Graviton's Wave Length and Mass?
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Understanding Bra-Ket Notation in Shankar
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Schmidt Decomposition: Is It Enough to Find States?
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Do Scattering Amplitudes Have Dimensions?
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Something called wavevector, k
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What Is the Shape of a Free Electron Wave?
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Is the Commutation Relation for Angular Operators in Hilbert Space Valid?
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Is the Matrix Representation of a Unitary Operator Always a Unitary Matrix?
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If light were an electromagnetic wave
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Short distance divergences in thermal states
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Question on step potentials and schrodingers equatio
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Is the generation of one electron at a time probabilistic or deterministic ?
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Optical Theorem: Understanding Conservation of Particles & Probability
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Time Evolution Operator & Classical Hamiltonian: Relating the Two
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Jahn-teller theorem and the CH_4 molecule
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Normal coordinate substitutions with periodic boundary conditions
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Quantum Physics and Parallel Universes and your mind
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Experimentally Verifying Photon Spin: Beyond Stern-Gerlach
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Duality of Electron: Mass, Charge and Wave Mechanics
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Is relativity the ultimate explanation for all uncertainties in physics?
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Photons and the Uncertainty Principle
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Quantum Mechianics and Telecommunications Engineering?
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First Energy Level Meaning: What Does It Mean?
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From Wave to Ket: Transform State Vector
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Welcome All: Unravelling the Mysteries of Photons
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Spontaneous parametric down-conversion practicalities
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How Do You Compute Derivatives in Dirac Notation with Mathematica?
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How Close Are We to Reaching the Landau Pole in QED?
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Is there an intermediate 'particle' to pair production?
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Understanding the Equation 2.14 and its Application in Srednicki's Theory
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Collapse of Pauli exclusion principle
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Why do subatomic particles act the way they are?
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How does the substitution in equations 3.2.4 and 3.2.5 work?
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How is Hardy's Paradox resolved in quantum mechanics?
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Combining Hamiltonians for a Two-Particle System
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Angular momentum and hydrogens atom
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Some confusion about Ballentine Sec 3.3 Generators of Gallilei Groups
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Atomic Energy Levels: Discrete vs Continuous
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Photon Generation Questions and Answers
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What is a 'magnetic substate'? (Magnetic-Optical Traps)
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Is Quantum Physics the theory of everything if
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Is the concept of degeneracy in quantum states always applicable?
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Quantum mechanical resistivity
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Consider parity then it is no longer enough to talk about two spinors
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Annihilation - matter/antimatter
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Research on Black Hole Questions: Membranes vs Non-String Universe
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How Do Holes and Time Influence Calabi-Yau Manifolds in String Theory?
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Point Particles vs. String Theory
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What Is the True Nature of Vacuum Space in Quantum Mechanics?
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Is Quantum Mechanics Tried, True, Wildly Successful, and Wrong?
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Understanding Dirac Notation: A Simplified Explanation for Scientists
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How Do Gravitons and Photons Compare in Quantum Theory?
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How Does the Infinite Potential Well Illustrate the Uncertainty Principle?
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Does Electron Superposition Eliminate Angular Momentum?
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Superpositons of a uranium atom
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Quantum Teleportation Research: Particles & Distances
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Discretization of Lz: Does m Have to Be Integer?
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Wave Equation in 2 Dimensions - Basic
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SU(2) in Standard Model and SUSY extensions
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Massless Particles: Gauge Bosons, Photons & Gluons
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What is the advantage of the truncated wigner approximation?
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How do renormalization and dressed particles eliminate self-energy?
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Uncertainty of a single photon in light scattering question
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Do Electrons in Higher Energy Orbitals Move Faster Than Those in Lower Ones?
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What is an Eikonal Factor in QED and QCD?
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Polarization Eraser & Entanglement
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Question about the Klein Gordon Propagator
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Density Matrix Doubt: Can Coherance Be Zero?
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Quantum Chemistry vs Physics: A Student's Dilemma
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How to solve generalised eigenvalue problems?
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What is the true nature of vacuum energy in quantum physics?
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Wanted: quotes that encourage thinking of experiments instead of measurements
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The significance of commutation
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Quantum Computing: Find People With Knowledge & Experience
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Quantum Gravity and time's arrow
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Is Weak Isospin Conserved in Particle Physics?
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Quantum Mechanics and Special Relativity (violations)
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What is the value of the fine structure constant at Planck energy?
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Commuting operators => Common eigenfunctions?
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Entanglement, causality and local realism
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How does CMBR differ from ether (SR self study - Question from W. Rindler)
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Transmission function(probability) T(E) in tight binding
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From Cartan's Theory of Spinors, x1^2 + x2^2 + x3^2 = 0
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How is Single Photon Polarization Determined in Free Space?
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