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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 New interpretation for the double slit experiment with light?
Graduate Is Quantum Mechanics Applicable to Everyday Life in the Macrocosm?
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Graduate Solution to the Klein Gordon Equation
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Graduate Pervasiveness of linear operators
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Graduate Schroedinger's cat experiment, my question?
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Graduate Quantum Entanglement : Spooky action at a distance
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Graduate Particle in a box: commuting energy and momentum operators
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Graduate Struggling to understand the concept of spin triplets
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Graduate Lagragians for spin 1/2 fields
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Graduate About the unit of Radial wave function R(r) of Hydrogen atom
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Graduate What is the relationship between Hilbert Space and space-time?
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Graduate Energy in Schrodinger’s Equation
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Graduate Wondering about entanglement at it's most basic level?
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Graduate Is space continuous or discrete?
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Graduate Second quantization particle current
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Graduate Can an Electron's Angular Momentum Change by Absorbing Virtual Photons?
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Graduate Why Does a Photon Not Have a Spin Component Sz=0?
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Graduate Generator of Rotations: J_x, J_y, J_z Relationship
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Graduate Momentum Operators and the Schwartz Integrability Condition
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Undergrad Is an Electron a Boson or a Fermion?
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Graduate Pauli matrices with two spacetime indices
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Graduate Quantum Weirdness: Vacuum Energy & Wave Functions
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Graduate Time derivative of a Schrodinger-picture operator?
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Graduate Understanding Spinors: Rank-1/2 Tensors & Square Roots of Vectors
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Graduate Expectation Value: My Understanding vs. Prof.
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Graduate State Vector Concepts in Quantum Mechanics: A Beginner's Guide
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Graduate Uncertainty Operators in Nouredine Zettili's Book
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Graduate When is the norm of a state equal to 1?
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Graduate Quantum Physics: Move of a Particle
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Graduate Why is the hidden variable theory wrong?
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Graduate Parity operator and change of variable question
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Graduate Does the Elitzur-Vaidman Bomb Tester Reveal the Path of a Photon?
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Graduate Pan proto experientialism and the quantum exchange interaction
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Graduate Negative Probability: Is It Possible?
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Graduate Classical radius of nucleons and quarks
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Graduate Probability of Polarization Amplitudes - Frank's Question
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Graduate Is Quantum Entanglement the Key to Understanding Particle Measurements?
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Graduate How to Experimentally Obtain Wavefunction Parameters?
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Graduate QFT around fixed classical backgrounds
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Graduate On the quantum physical theory of scattering
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Graduate Is the Product of Expectation Values Always True in Quantum Mechanics?
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Graduate Why Does the Domain Transform to Keep the Time Dependent Operator Self Adjoint?
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Graduate Ground State Parity in One-Dimensional Potentials
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Graduate Can Quantum Tunneling Enable Controlled Thermonuclear Fusion?
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Undergrad Do Photons Spin in Our Reference Frame?
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Graduate The spectral theorem and Hamiltonians
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Graduate Adding Angular Momenta: Rules of Thumb?
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Graduate Hermitian conjugate of spinor product (Srednicki ch 35)
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Graduate What is the furthest distance particles can interact and still become entangled?
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Graduate What does this notation mean exactly?
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Graduate Origin of Photons Irrelevant in Double Slit Experiment?
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Graduate Why in nature there is no spinless fermion?
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Graduate Special case of energy value for a particle in a non zero potential region
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Graduate What Does Quantization Mean for Electromagnetic Fields in Quantum Field Theory?
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Graduate Lifetime of a Photon: Electron-Positron Annihilation & Speed of Light
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Graduate Euclidean geometry doesn't exist?
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Graduate Photon Interaction: A Comprehensive Guide
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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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