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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)
Understanding Cutkosky's Rules for Bhabha Scattering and the Optical Theorem
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What Happens When Photon Strikes an Electron?
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What is the value, in joules, of one quantum of energy?
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Why is the behaviour at infinity important in classifying gauge theory states?
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Special Relativity and Entanglement
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Help with intuition concering braket sandwich
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How Do Canonical Transformations Translate from Classical to Quantum Mechanics?
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Quantum Field is Observable, Not State Property
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What is the Relationship Between Quantum and Classical Path Integrals?
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Understanding the Nambu-Jona-Lasinio Model: Key Questions and Concepts?
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Is the Wave Packet a Valid Solution of the Schrödinger Equation?
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Searching Book about QED; compton scattering of polarized photons
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Correlations between QM operators
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Italian double slit electron experiment
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Can Entangled Photons Enable Communication?
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Feynman Path Integral: Explaining e^{\frac{iS(x)}{\hbar}}
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Quantum computingnecessary classical devices knowledge?
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Normalization and orthogonality of wavefunctions
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Gravitrons and General Relaivity
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Fermi's Golden Rule: Explained
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Microcausality in field theory
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What IS happening with photon frequency?
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Decoherence does not collapse wavefunc.
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What's Really so Quantum About Heisenberg's Uncertainty?
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Imagine a proton in a certain place during an experiment
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Atomic electron wave frequencies
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Tensor products of representations
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Double slit experiment at event horizon of a BH
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Is the Delayed Choice Experiment Justified?
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How to calculate a Vibronic Coupling?
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Ask a few specific use of the word physical if it is correct
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How to fire one electron at a time
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Density Matrix: Theorem & Normality Conditions
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Electromagnetic interactions & photon transfer
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Can S and K Integrate to the Same Result?
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Uncertainty in the presence of quantum memory
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Usefulness of the momentum wavefuction in solving Schrodinger's Equation
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Are there any regulating condition on the spin of particle?
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What are the possible dimensions of representation of SL(2,C)?
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What would happen if Planck constant decreased slightly?
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Can Quantum States be Transferred without Knowledge of Initial Orientation?
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Motion equation in quantum mechanics?
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Grassmann Numbers & Commutation Relations
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Schrodinger Equation a constant?
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Derive RMS around average of a hermitian operator
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Can Fields Be Custom-Designed to Control Charge Interactions?
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Propagator at time-like separations
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Is there a guide to using the density matrix formalism in quantum mechanics?
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On the single/two-slit diffraction problem and superposition.
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Klein–Gordon equation with time dependent boundary conditions.
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In the second quantization spin operator, what are Pauli spin vector indices?
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Adding 3 Spin 1/2s: Total Spin Quantum Number
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How do complex numbers manifest themselves in the subatomic world?
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Wheeler's Delayed Choice Experiment
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How to Calculate Uncertainty of an Operator with Known State
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Field theory in non-relativistic QM
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Entropy in quantum mechanics and second law of thermodynamics
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Entangled photon polarization thought experiment disproof request
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Difference between quarks & protons
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Why is unitarity important in relativistic scattering processes?
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How can sending a massive chunk of carbon through the double-slit prove
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Can Teleportation Become a Reality?
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Position operator in momentum space (and vice-versa)
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Why can we write this? (maths)
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How is a single photon fired in the double slit experiment?
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Why must Klein-Gordan equation describe spinless particles.
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How to show gamma matrices are unique?
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How Long Does a Photon Take to Pass Through a Thick Glass Block?
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Examining the details of the Bell Inequality.
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Commutators in second quantization
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Why is the Electron Self-Energy Important in QFT Theory?
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Second Quantization: Explaining c^\dagger_ic_j = \delta_{i,j}c_jc^\dagger_i
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Can an Electron Absorb a Photon Without Making a Complete Energy Level Jump?
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Coulomb's gap and Wave Equation
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Electron Spin: 360 Degrees or 720? Understand the Difference
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Relationship between EMF and distance between the particles
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Why does the Hamiltonian generate time evolution?
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Photoelectric and Compton effects
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EMF between quarks & electrons
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The process involved in reflection?
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About the Schrodinger equation, the Hamiltonian, time evolution?
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Trace of momentum-space propagator
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Quantum nature of the inertia and Mach principle
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Quantum Puzzle:Photoelectric effect
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Compton Scattering Concept Question
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Spin vector and operator transformations query
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Quantum random number generator with radioactive decay
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Confused about quantum principles
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Question About Qubits and the Representation of the Bloch Sphere
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Probabilities in QM is like Diffusion in Thermodynamics
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Normal order of operator product
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When can eigenvalue equations be used?
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DNA Waves and Water: Examining Nobel Prize Winner's Experiment
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Wavefunction solution to the Schrödinger Wave Equation for a H atom
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The 6 hydrogen spectral line series'
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Wave Function mathematical vs real
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Light Momentum: How Can Light Have Momentum if its Speed is Constant?
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Do Virtual Particles Travel Faster Than Light and Violate Causality?
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Finite and infinite cross sections
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A mathematical issue raised from perturbation theory
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