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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)
Undergrad Too much info for multiparticle wave function?
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Undergrad A, a† etc. within integrals: does it have to be so hard?
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Undergrad Entanglement and photon polarization
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Undergrad Quantum Mechanics does Riemann Zeta Function
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Undergrad How do i find the eigenvalues of this tough Hamiltonian?
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High School Commonly quoted PF article required.
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High School Blackbody Radiation: Explaining Ultraviolet Catastrophe & Planck's Solution
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Undergrad Decomposing a density matrix of a mixed ensemble
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High School Conservation of Total Spin in the Stern Gerlach Experiment
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Undergrad Understanding Abstract Kets & Hilbert Space
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High School Irreversibility vs reversibility
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Undergrad Confused about complex numbers
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High School "Distribution" of a particle in different situations
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Undergrad Understanding the Form of the Y(2,0) Spherical Harmonic
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High School What is the best way to imagine a photon?
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Graduate Paper Spelunking: "Particle Creation by Black Holes" - S.H.
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Undergrad Is Entanglement Commutative in Quantum Computing?
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Undergrad Two orthonormal bases that span the same space
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Undergrad Help with Math in Quantum Mechanics: Variational Method
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Undergrad Phase Space and two dimensional Hilbert Space
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Undergrad What does the Hadamard correspond to in hardware?
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Undergrad Amplitude moving through detectors
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Undergrad What Is the Physical Significance of ##\beta_{tot}## in Molecular Polarization?
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Graduate Reduced Density Operator and Entanglement
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Undergrad How Does Wave Function Collapse Work in Quantum Mechanics?
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Undergrad What Is the Meaning of Simultaneous Reality in the EPR Paradox?
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Undergrad What is the significance of the Lande g-factor in nuclear physics?
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High School The Wave Function of Our World: How Does It Emerge?
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Undergrad Do we still experience quantum effects in decohered systems?
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Undergrad Time Difference on a quantum level
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Bell's theorem mathematical content
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Undergrad My stupid question about particle-wave duality
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Undergrad What Happens When a Photon Hits an Electron?
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Undergrad Question about time-variant Schrodinger's eq'n
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Undergrad Question(s) about Dirac notation
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Undergrad What does the state vector mean?
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Undergrad Behavior of successive measurements
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Undergrad Why Does Quantum Mechanics Require Complex Numbers?
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High School Why is state transition probability symmetric?
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Undergrad Xt - Understanding Dipole Moment Components in Rigid and Non-Rigid Molecules
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High School Quantization of energy and ultraviolet catastrophe
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Undergrad Real world process that results in reciprocal wavefunction
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Undergrad Understanding Orthogonality: QM Lectures by Dr. Physics A
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Undergrad Photon number state and Doppler shift
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Undergrad Why is the total number of quantum states = 2n^2 for some n?
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Undergrad Understanding Change of Basis & Superpositioning of States
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Undergrad Are superposition states observable?
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Undergrad Do operators A and Hamiltonian share a set of eigenfunctions if they commute?
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High School Quantum mechanics and the macroscopic
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High School How does sideband detection work in a Penning trap?
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Undergrad Could a Negative Dimension exist
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Undergrad Help in understanding a quantum circuit
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Graduate Gauge transformation of gauge fields in the adjoint representation
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Undergrad Is chirality a conserved quantity?
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Undergrad Who will win -- Pauli or Einstein?
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Undergrad What does a superposition of states mean in quantum mechanics?
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High School Scientists evade the Heisenberg uncertainty principle
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Undergrad Understanding Entanglement Measures and the Bloch Sphere Representation
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Undergrad How do electronics in tranistors tunnel if decohered
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Undergrad On-Demand Photon Pairs: Entanglement or Necessity?
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Undergrad Symmetric, antisymmetric or neither
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Undergrad Calculating the probability density of a superposition
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Undergrad Spin quantum numbers: correct names and formulae?
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Undergrad Quantum-Mechanical treatment of circuits
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Undergrad What does it mean to "drive a particle" in a penning trap?
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Undergrad QFT, event amplitudes and reversed time....
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Flux-flux correlation function under Feynman's path integral
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Undergrad Can Electric Fields be Teleported & Entangled?
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Undergrad Classical v. quantum dynamics: Is spin the key difference?
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Undergrad Angular momentum raising/lowering operators
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High School Measuring velocity and interference?
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Undergrad What causes light to diffract in the double slit experiment?
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Undergrad Does Relativistic Motion Impact Quantum Optical Experiments?
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Graduate Coupling constant in Yang-Mills Lagrangian
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Graduate How a laser resonator generates the standing wave?
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High School How do you build a quantum suicide machine?
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Undergrad How can Spin-up z and spin-down z span the space?
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Graduate Polarization of gauge bosons and gauge choice
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Undergrad Momentum cut-off regularisation & Lorentz invariance
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Undergrad Understanding the scalar field quantization
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Graduate Change in the EM field energy due to dispersion of a wave packet
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Graduate Manipulation with the Dirac equation
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Undergrad Classical analogue of quantum contextuality
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Undergrad Hong-Ou-Mandel with two beam splitters
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High School Quantum mechanic has something to do with electromagnetism?
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Undergrad Solution to the Dirac equation
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Undergrad What happens when a particle observes itself during quantum tunneling?
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Undergrad What does the magnetic moment of a particle depend on?
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Undergrad Do quantum linked rings (quantum knots) have energy?
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Undergrad What is the physical significance of Bell's math?
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Undergrad Does this explain the Zeno effect observed
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Graduate Experimental tests on the reality of the quantum state
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Higher Dimension and Randomness
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Undergrad Solving 2 Electron Spin 1/2 System: Need Help!
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Undergrad Bound states of a periodic potential well in one dimension
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Undergrad Finite Square Well: Bond States and Asymmetric Potential Wells
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Undergrad What are pure and mixed states in quantum mechanics?
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Undergrad Peter Woit's free QT, Groups and Representations ebook
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High School What Are Constrained Quantum States and Their Implications?
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Undergrad Has Planck length been derived rigorously?
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