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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 On computing quantum waves exactly from classical action
High School Quantum teleportation of usable information
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Graduate What is the meaning of "Amplitude of Detection" in A. Zee's QFT book?
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Undergrad Motivation behind the Operator-Formalism in QM
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Undergrad Color charge is not scalar -- do their components have dimensions?
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Undergrad The Dirac equation as a linear tensor equation for one component
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Undergrad Generalized Eigenvalues of Pauli Matrices
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Undergrad Planck's Constant times the speed of light
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Undergrad Eigenstates of particle with 1/2 spin (qbit)
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Undergrad If the gravitational constant had a different value
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Graduate How produce twin photons in practice?
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Undergrad What are anomalies in quantum field theory?
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Undergrad Qubits state calculation
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Undergrad Quantum mechanics formalisms and conservation of energy
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Undergrad When and why can ∂p/∂t=0 in position space?
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Undergrad EPR in Bohm formulation
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Undergrad How to enter measurement results into Bell inequality?
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Undergrad Why doesn't gravity cause double-slit decoherence?
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High School Could energy be destroyed during particle annihilation?
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Undergrad Bell tests: Changing detector settings "just before photon arrives"
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Graduate X measurement modeled in non-separable Hilbert space
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Undergrad Klein-Gordon Equation with boundary conditions
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Graduate Testing antimatter fundamentals
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Undergrad Conservation of energy and wave function collapse
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Undergrad How to "derive" momentum operator in position basis using STE?
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Undergrad Freqeuncy of Matter Waves Approaches Infinity as Velocity Approaches c
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Undergrad Material Waves and Wave Functions
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High School How do quantum phenomena affect macroscopic phenomena?
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Graduate Mixed quantum state of the Bose-Einstein distribution
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Undergrad Quantum particle's state in momentum eigenfunctions basis
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High School Using Interference Principles to Increase the Efficiency of Solar Panels
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Undergrad Is quantum interference an instantaneous consequence of superposition ?
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Graduate How to know the number of Feynman diagrams for a given order?
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Undergrad Completeness of Eigenfunctions of Hermitian Operators
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Undergrad Does gravity cause quantum decoherence?
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Graduate What is decoherence?
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Undergrad Original HBT experiment with mercury isotope lamp
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Graduate Spontaneous emission and coherence
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Undergrad How is spin exchange interaction generalised to many electrons?
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Undergrad Electrons keeping dynamical quantum fluctuations?
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Undergrad Observing observables of an entity
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High School Does a photon's energy change as it refracts?
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Undergrad Does entanglement always conserve something?
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Undergrad Qbit pure vs mixed state space
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Graduate A particle locked inside an arrangement of Dirac delta potentials
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Undergrad Wave packet interpretation
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Undergrad Representation of Spin 1/2 quantum state
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Undergrad Energy and momentum of a photon in a medium
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Undergrad Radiation from solid black bodies
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Undergrad How many spots will a rotating Stern-Gerlach apparatus produce?
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High School Can objects in nature store light information on the quantum level?
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Undergrad Your Favorite Feynman Diagram?
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Undergrad Quantum Hall Effect and Hall Voltage
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Graduate QFT Superposition of Final States
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Undergrad Subtractive mode intensity interferometry?
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Undergrad Electron counterpart of pseudothermal light source for quantum experiments
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High School Electron's movement after getting hit by a photon that bounces at 90 degrees
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High School Origins of the no-cloning theorem
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Undergrad Feedback on Educational Script: What's a particle in QFT?
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Undergrad Are Superposition, the Uncertainty Principle, and Duality the same?
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Graduate Vacuum Energy from Correlation Functions
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Undergrad How Do Quantum Fluctuations Shape Cosmic Structures?
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Undergrad About nature of superposition of states
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Undergrad Infinite momentum is impossible, boundary term in integration by parts
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Undergrad Is the Black Hole Information Paradox Truly Resolved?
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Undergrad Artificially discretized quantum states - is it a thing?
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Undergrad Displacement operation acting on individual quadrature components
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Graduate How Are Rotations on the Bloch Sphere Implemented in Practice?
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Undergrad Phonon emission : Discrete event or a process with inner detail?
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Undergrad "Wave-particle duality" and double-slit experiment
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High School Double Slit Experiment: Dumb question that needs to be asked
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Undergrad Feynman discussion of electron diffraction
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High School Disappearance of interference pattern in double slit
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Undergrad Example of SO(2) being not simply connected
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Undergrad Conservation of energy after measurement
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Undergrad Fundamental representation and adjoint representation
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Undergrad Double Check Normalization Condition
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Graduate Question about Propagators in QFT
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Graduate Gravity Measured with Milligram masses
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Graduate Noise in Landau–Zener transition
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Graduate Understanding the Limitations of Electron Spin Resonance
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Undergrad Number of qubits needed to simulate the universe
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Graduate Vector field vs. four scalar fields ("QFT and the SM", Schwartz)
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Graduate Fisher information from likelihood function for quantum circuits
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Undergrad Why do orthogonal polarizers at slits eliminate interference pattern?
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Undergrad Is conservation of energy a local law in Quantum field theory?
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Undergrad Why is there no single slit interference when one slit is closed in a double slit experiment?
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Graduate Does Matter Really Move Like a Wave and Hit Like a Particle?
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Undergrad How does a band pass filter increase the time of arrival of photons?
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Undergrad Is the uncertainty principle applicable to single slit diffraction?
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Graduate How was the symmetry used here? ("QFT and the SM" by Schwartz)
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Undergrad Are vacuum energy and vacuum fluctuations the same thing?
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Undergrad Can a Third Particle Be Entangled with Two Existing Particles Without Breaking Their Entanglement?
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Undergrad Heisenberg Equations of Motion for Electron in EM-field
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Graduate Derivation of energy-momentum tensor in "QFT and the SM" by Schwartz
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Graduate Derivation of QM limit of QFT in "QFT and the SM" by Schwartz
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Undergrad Speed of information in a medium
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High School How addition of vectors works if every force is quantized
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Graduate What does lambda in nuclear decay mean if it is big?
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Undergrad Tunneling of light through thin metal films
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Undergrad Electron wave addition using phasor diagram
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