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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 question about quantum entanglement
Graduate Heisenberg equation of motion for fermions?
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Undergrad Can Energy Gaps Determine Electron Excitation and Decay?
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Graduate Elitzur–Vaidman Bomb-Tester Extension for Boolean Variable Return
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Graduate Solving the Mystery of Schrödinger's Cat and Its Qualified Observer
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Graduate The Polarization of electron ?
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Graduate Wave Particle Duality and its relation to the Wave Function
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Undergrad How is heat caused by photons?
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Graduate Uncertainty principle and angular momentum
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Graduate Time and alternate realities/universe
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Graduate Signicance of positive and negative frequencies?
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Graduate Quantized Dirac Field Interacting with a Classical Potential
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Graduate Anti-Zeno Effect: Verified & Explained
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Graduate Question about an electric circuit and quantum physics
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Graduate Position-Momentum Uncertainty Principle
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Graduate Program for Traces of Dirac matrices
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Graduate Particle in Well: Localization & Beyond
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Graduate What Is Quantum Foam and How Does It Shape Our Understanding of the Universe?
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Graduate Very basic question(s) about photons
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Graduate Mass terms in quantum field theory
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Graduate Why must the wavefunction be continuous in quantum mechanics?
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Graduate Operator B has a commutator [A,B]
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Graduate State vs Orbital: What's the Difference & Pauli Exclusion Principle
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Boundary terms in hilbert space goes vanish
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Graduate Understanding Hermitian Conjugates of $\psi^{\dag}\bar{\sigma}^{\mu}\chi$
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Graduate What is the significance of the number 137 in quantum physics?
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Graduate Turing machine and quantum computers
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Graduate Second order correction to the wavefunction
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Graduate Chain rule for functions of operators?
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Graduate Dyson-Wick formalism in second-order QED - trouble with derivation
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Graduate Light-front coordinates and the vacuum.
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Graduate What Conditions Must a Matrix Meet to Be a Density Matrix?
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Graduate Space-Time — Momentum-Energy uncertainty relations
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Graduate Counting and Grouping Feynman Diagrams
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Graduate Deriving Equation (3) from A. Zee's "QFT in a Nutshell" Chapter I.5
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Graduate Can Linear Combinations of Non-Degenerate Eigenstates Form New Eigenstates?
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Graduate Do Massless Particles Interact in Particle Physics?
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Graduate Is Quantum Mechanics Linked to Divine Action?
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Graduate Difference among energy level,energy state and quantum state
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Graduate Proof that commuting operators have a shared base of eigenfunctions
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Graduate Fine structure, and hyperfine structure
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Graduate Is intrinsic momentum a fundamental property of particles?
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Graduate Spin-1/2 Particle Transformation: Spin-Z to Spin-X
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Graduate How does the concept of wave functions apply to large objects?
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Graduate How Can Photons Be Manipulated to Move in the Same Direction?
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Graduate What Happens to a Charged Particle When Its Oscillator Potential Vanishes?
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Graduate Elementary question:[A,B] = [A-<A>, B-<B>]
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Graduate Does it make sense to define operators like r,theta, phi
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Graduate Question on Completeness of a set of Eigenstates
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Graduate Home Quantum Physics Experiments
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Graduate Single slit diffraction experiment
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Graduate Is there gravity at small scales?
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Graduate Wondering about the origins of light?
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Graduate Zeroes of zeta function as energy levels?
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Graduate The meaning (and validity) of fractional occupations in QM
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Graduate Negative pressure in quantum mechanics
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Graduate Measurement of two components of electron spin
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Graduate S-matrix formula from Lippmann-schwinger eqn
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Graduate Scale of uncertainty principle
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Graduate Are Degenerate Energy Levels the Same as Ground States in Quantum Mechanics?
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Graduate Fundamental Measurement of Subatomic Particles: Techniques and References
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Graduate Wondering about the particle treatment of light?
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Graduate Where is the Electron in Schrodinger's Cat Paradox?
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Graduate Is action truly an observable in physics?
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Graduate How do we associate real measurements with theoretical quantities?
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Graduate Rotational Invariance: Bosons vs Fermions
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Graduate Does matter convert to photons only?
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Graduate Transitions caused by circularly polarized light
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Graduate How Can I Improve My Understanding of NMR Modeling and Experiments?
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Graduate Analogue of the S.E. for photons?
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Graduate Why is entanglement essential for quantum computing?
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Graduate Minkowski vacuum: Poincare invariant, quasi-free state
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Graduate Fock space in interaction theory
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Graduate Creating Models for Ed Witten's M-Theory
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Undergrad Question about spontaneous creation.
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Undergrad Light Transfer (Light Transmittance)
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Graduate Can I Walk Through a Wall with Quantum Mechanics?
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Graduate Exploring Left & Right Spinor Fields in Srednicki
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Graduate Ionizing solutions to the hydrogen atom
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Graduate Dispersion relation and Photonic Energy and Momentum Equations in QM
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Graduate Attraction between two charges in QED
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Graduate Is there a quantum nuclear theory?
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Graduate If two operators commute (eigenvector question)
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Graduate Hawking radiation redshift (?)
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Graduate Spin-spin relaxation time in water
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Graduate Why need *complex* probability amplitude?
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Graduate Better than Bell: The GHZM Effect
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Graduate Peskin-Schroeder - Eqn 2.45 derivation
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Graduate Quantum mechanics and randomness
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Graduate Einstein against Quantum theory
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Graduate Propagator using cauchy integral
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Graduate Electromagnetic mass of the electron
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Graduate Diagonalize a non-hermitian matrix
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Graduate Dalembertian Operator: Symbolized by Empty Box?
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Graduate Probability laws of quantum mechanics
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Undergrad Quantum physics and technology
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Graduate Forrest Gump meets the Elitzur-Vaidman bomb tester
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Graduate Delayed-choice double slit experiment
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Graduate Need some convincements on microcausality
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Graduate Is there an upper limit to e/m frequency?
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Graduate What is the Role of Wavefunction in DFT for Molecular Systems?
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