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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 Understanding Barandes' microscopic theory of causality
Graduate Can Photon States Be Represented as Column Vectors in Quantum Mechanics?
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Graduate Changing the Hamiltonian without affecting the wave function
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Graduate Understanding Normal Ordering: Anhillation and Creation Operators Explained
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Graduate Quantum Mechanics without Measurement
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Graduate Partition Function, Grand Potential
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Graduate Calculating Probability of Field States in QFT
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High School Are electrons particles or waves?
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Graduate Signs in the Field-Theoretic Euler-Lagrange Equation
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Graduate What is the lowest rotational energy level for a diatomic molecule?
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Graduate Why is the conductance quantized?
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Graduate My understanding of Quantum Fields [Please correct me if I'm wrong]
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Graduate Normal ordering versus no normal ordering
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Graduate Question on the 2-dim representation of the Lorentz group
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Graduate How Do Eigenvalues Relate to Quantum Mechanics and Classical Physics?
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Graduate What Causes Amplitude Changes in Light During Surface Interaction in QED?
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Graduate Entanglement Swapping Superluminal Communication
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Graduate The Extra Energy of a Doppler-Shifted Photon: Where Does it Go?
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Undergrad Nuclear Rotation: Electrons & Nucleus Vibration in Atom
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Graduate What are some examples of non-commutating observables in quantum mechanics?
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Graduate Destructive interference with different path lengths?
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Graduate What is the first and second quantization?
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Graduate Calc Commutator in Infinitely Potential Well: Is it Possible?
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Undergrad Heisenberg's Uncertainty Principle
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Graduate On the classical action in Feynman approach
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Graduate 'Largest' Schrodinger cat states created to date?
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Graduate Expectation value for momentum operator using Dirac Notation
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Graduate Relativistic Quantum Mechanics?
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Graduate What is the use of Dirac delta function in quantum mechanics?
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Graduate Classical wavelength versus wavefunction
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Graduate Exotic particles from Casimir?
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Graduate Linear superposition. Measurments.
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Graduate Explaining linear spectroscopy from first principles
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Graduate How do you rotate an electron 360 degrees?
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Graduate How Does the Second Quantized Field Operator Act on a Two-Fermion Wave Function?
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Graduate Casimir plates prevent photon existence only perpendicular to them?
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Graduate Classic Oscillator: Understanding Matrix Form with Shankar
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Graduate Quantum States and ladder operator
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Graduate Entangled photons in double slit experiment
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Graduate Are coordinate operators Hermitian?
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Graduate Commutation relation to find Sx, Sy
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Graduate Acceleration. Infinite potential well.
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Graduate Why Do We Need Complex Wavefunction in Quantum Mechanics?
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Graduate Hydrogen probability distribution
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Graduate Expand ψ(o) in terms of eignestates
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Graduate Trouble replicating a calculation in Silicon Nanoelectronics
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Graduate Dealing with complex operation in Quantum mechanics
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Graduate What are the matrix elements of the angular momentum operator?
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Graduate Bra and Ket Representation in Dual Hilbert Space
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Graduate Is a state space with indistinguishable particles a quotient? Of what?
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Undergrad Recreating double slit experiment without laser
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Graduate Uncertainties in Srednicki's Book
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Graduate Uncertainty principle leads to superlumina ?
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Graduate The uncertainty operator and Heisenberg
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Undergrad NMR: Simple Question About Aligning w/ External Magnetic Field
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Graduate Understanding Angular Momentum States and Clebsh-Gordan Coefficients
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Graduate Matrix of the force on a two-level atom
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Graduate Interpreting Wavefunction in Quantum Mechanics
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Graduate If a photon's emission is detected is it real or virtual?
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Graduate Dynamic Casimir Effect: Questions Answered
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Graduate Time independent wave function vs the initial wave function
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Graduate Are all selfadjoint operators in quantum mechanics bounded?
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Undergrad Nonlinear optics: second harmonic generation
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Undergrad Is Schrodinger's cat experiment a paradox?
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Graduate Wave function simplification in relativistic coordinates?
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Graduate Harmonic oscillator Hamiltonian.
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Graduate Asymptotic properties of Hydrogen atom wave function
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Graduate Does this equality have a name?
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Graduate Expanding delta in Field Theory Derivation of Euler-Lagrange Equations
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Graduate Delayed Choice Eraser with dispersion pattern controlled detectors
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Graduate Entanglement and interference effects
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Graduate Joint Number state switching operator?
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High School Uncertainty principle and momentum
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Graduate Finding Hydrogen eigenfunction u(2,0)
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Graduate Are photons the antiparticle of itself?
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Graduate To get the complete Radial Wavefunction, why do we multiply by Y(l,m)?
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Graduate Klein Gordon ret. Greens function on closed form
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Graduate Peskin and Schroeder derivation of Klein-Gordon propagator
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Graduate Is the real world mostly collapsed?
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Graduate Helicity and the Uncertainity Principle
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Graduate Preferred Basis and Superposition
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Graduate Drawing a Feynman Diagram: Lagrangian Basics
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Graduate Physical meaning of probability density
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Graduate Hydrogen atom: potential well and orbit radii
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Graduate Why does ψ have a ghost number of -1 in BRST symmetry?
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Graduate Trace of the spin matrix of spin-1
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Undergrad Conceptual Question regarding Uncertainty Principle
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Graduate Understanding the Separation of Solutions in Partial Differential Equations"
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Graduate HUP and Rest Mass of Electrons
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Undergrad Could Niels Bohr's Atomic Model Be Simplified by Assuming Stationary Electrons?
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Graduate Why People Rarely Discuss the Wave Function of Anyons - Explained
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Graduate Why are Microwaves Better for Quantum Info Stability?
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Graduate Quantum gates: what is the hardware?
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Graduate When can the exchange interaction be neglected?
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Graduate Probability and probability amplitude
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Graduate Why do we use normalization twice in quantum mechanics?
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Graduate Easy way to get the expectation value of momentum squared?
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Graduate Do the quantum effects we observe in visible light occur in all wave
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Graduate Probability of an entanglement state
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Graduate Problem on Heisenberg's Uncertainty Principle
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Graduate Physical observables, locality, and a preferred basis
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