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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
Undergrad Rotation problem in Quantum Mechanics
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Undergrad Von Neumann entropy for "similar" pvm observables
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Undergrad Is the potential energy always negative in the ground state of a hydrogen atom?
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High School Emission from a coated cathode and tunneling
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Graduate What Conditions Allow the Derivative Trick for Evaluating Fermionic Commutators?
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Graduate How effective can QM be to understand the mind and/or consciousness?
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Undergrad Question on the SG (Stern-Gerlach) Spin experiment
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Graduate Unraveling the Mystery of Coherent States for Graduate Students
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High School Can we measure any two of the energy, momentum or mass simultaneously?
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Graduate Understanding Hermiticity of Actions in QFT for Checking and Confirming
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Undergrad Imaginary Residuals in Solving the Schrodinger Equation
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Undergrad Orbits from Orbitals: Maximally Commuting Operators & Coherent States
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Graduate Lorentz Transformations and Angular momentum | Tong's QFT notes
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Undergrad Form of the Standard Model: Higgs-Fermion Yukawa Coupling
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Graduate Superficial Degree of Divergence in Renormalization of Phi^3 Theory
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Undergrad How to determine ##\psi(x,0)## in general situation?
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Undergrad Scalar Hamiltonian and electromagnetic transitions
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Undergrad What does it mean to influence a quantum measurement's outcome?
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Undergrad Bell's theorem : pre- and post-digitization
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High School What Are the Best References for Delayed Eraser Experiments with Electrons?
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High School Understanding Electron Spins: A High Schooler's Guide”
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Undergrad Proof of Commutator Operator Identity
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Undergrad Planck's law in wavenumber vs. wavelength
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Undergrad What is the name for the Heisenberg uncertainty principle?
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Undergrad Significance of the Exchange Operator commuting with the Hamiltonian
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Graduate Renormalization Conditions of QED
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High School Where is the quantization term in Planck's Law?
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Undergrad Quantum fluctuation and classical physics
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Graduate Electron frequency components during orbital tunneling
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Graduate Dirac Propagator: Learn to Reach 8.2
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Undergrad Why the statistics for a real gas are not quantum in nature?
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High School Mach-Zehnder Experiment: Wave-Particle Duality Demonstrated
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Undergrad Steering the polarization of entangled photons
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Undergrad Probability density expansion
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High School How do quantum computers find a solution?
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Undergrad A qualitative question about Blackbody Radiation
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Undergrad Effect of inserting an analyzer loop in the EPR experiment
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Undergrad What's the importance of the squared of the angular momentum?
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Undergrad What is the significance of 54 volts in the Davidson Germer Experiment?
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High School Entanglement - lack of "symmetry" in no-hidden variables explanation
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High School Understanding Phase Terminology in Wave Functions
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Graduate Quantum biology - photosynthesis
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High School How does the observed version of the double slit get by without math?
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Undergrad Entanglement setup that shouldn't allow for the transmission of info
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Undergrad Commutator's Matrix representation
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Undergrad What is the cross section of a graviton?
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Graduate Annihilation creation operators in case of half H.oscillator
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Undergrad Decoupling of angular momentum
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Graduate What is the Corrected Heisenberg Limit for Phase Estimation Measurements?
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Undergrad Topological quantum physics - spin statistics
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High School Where do virtual particles come from?
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Undergrad Why Does Equation (5) in Bell's Paper Use < σ⋅a > = 1 - 2θ'/π?
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Undergrad Will thermal disturbance change an atom's spin?
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Undergrad Vector addition in spin orbit coupling
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Undergrad Why Won't Observation in a 2 Slit Experiment Cause 1 Slit Diffraction?
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Undergrad Why do we observe an electron both as a wave and as a particle ?
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High School Multiple Sequential Delayed Choice Experiment
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Graduate Langevin equation - derivative of random force?
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Undergrad Energy of massless particles before electroweak symmetry breaking
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High School Interesting Book On The History Of QM And Einstein's Role
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Undergrad How can a photon "stimulate emission" if it really does (Einstein coefficients)
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High School Detecting a photon passing through a slit without destroying it?
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Undergrad Gauge Transformations and the Covariant Derivative
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Undergrad Does classical mechanics apply to the quantum world at all?
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Undergrad Use of the Beam Splitter Operator
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Undergrad Photon Bell Experiment, what happens in a single case?
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Undergrad Scatter radiation and film fogging
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Undergrad On-shell virtual particles and 'physical' Hilbert spaces....
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Undergrad Is a bipartite system necessary for the proof of the PBR theorem?
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Undergrad What do we do with the massive scalar quantum field in QFT?
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Undergrad Why induction requires a magnetic material to produce a current
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High School Compton Effect -- Why is the electron considered to initially be at rest?
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Undergrad Physical meaning of ##\psi_1(x)\hat{A}\psi_2(x)##
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Graduate Diagonalization of 2x2 Hermitian matrices using Wigner D-Matrix
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Graduate Two Different Fock State Inputs into a Beam Splitter
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Undergrad Blackbody Radiation: Questions Answered on Causes & Oscillators
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Undergrad How is the information of a change in position of a star transmitted?
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Graduate When should we use the Langevin equation and when should use Fokker-Planck
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Graduate S-matrix expansion and Wick's theorem
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Undergrad Field Renormalization vs. Interaction Picture
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Graduate Photoelectric effect at metal junctions
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Graduate Complex Numbers Not Necessary in QM: Explained
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Undergrad Photon interference and path differences
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Undergrad Does Bell's theorem imply other Lorentz transformations?
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High School Layman's question re quantum entanglement
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Undergrad Momentum-Position vs. Energy-Time Uncertainty Relations
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Graduate What did Hans Bethe think of von Neumann's quantum logic?
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Undergrad What happens when an object starts to glow?
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Graduate Understanding Harmonic oscillator conventions
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Undergrad What Is the Physical Meaning of Atomic Particle 'Spin'?
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Undergrad Collapse of the wave function under simultaneous measurement
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High School Quantum mechanical model of an atom
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Undergrad Master` Equation for the Penrose-Diosi wavefunction collapse
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Undergrad Photon occupation numbers in relation to the 4-potential
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Undergrad What is SR transformarion for bispinor?
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Undergrad General Implications of the Double-Slit Experiment
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High School The Virtue of Individual Perception RE: Wavefunction Collapse
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Undergrad Let me Know What you Think of This Toy Theory
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Undergrad Is the energy of a burst of light the sum of the energy of each photon?
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Undergrad Trying to Generate Entangled Photons
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