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

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