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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

I Question about discussions around quantum interpretations
I Displacement operation acting on individual quadrature components
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A How Are Rotations on the Bloch Sphere Implemented in Practice?
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I Phonon emission : Discrete event or a process with inner detail?
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I "Wave-particle duality" and double-slit experiment
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B Double Slit Experiment: Dumb question that needs to be asked
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I Feynman discussion of electron diffraction
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B Disappearance of interference pattern in double slit
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I Example of SO(2) being not simply connected
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I Conservation of energy after measurement
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I Fundamental representation and adjoint representation
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I Double Check Normalization Condition
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A Question about Propagators in QFT
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A Gravity Measured with Milligram masses
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A Noise in Landau–Zener transition
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A Understanding the Limitations of Electron Spin Resonance
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I Number of qubits needed to simulate the universe
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A Vector field vs. four scalar fields ("QFT and the SM", Schwartz)
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A Fisher information from likelihood function for quantum circuits
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I Why do orthogonal polarizers at slits eliminate interference pattern?
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I Is conservation of energy a local law in Quantum field theory?
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I Why is there no single slit interference when one slit is closed in a double slit experiment?
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A Does Matter Really Move Like a Wave and Hit Like a Particle?
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I How does a band pass filter increase the time of arrival of photons?
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I Is the uncertainty principle applicable to single slit diffraction?
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A How was the symmetry used here? ("QFT and the SM" by Schwartz)
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I Are vacuum energy and vacuum fluctuations the same thing?
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I Can a Third Particle Be Entangled with Two Existing Particles Without Breaking Their Entanglement?
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I Heisenberg Equations of Motion for Electron in EM-field
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A Derivation of energy-momentum tensor in "QFT and the SM" by Schwartz
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A Derivation of QM limit of QFT in "QFT and the SM" by Schwartz
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I Speed of information in a medium
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B How addition of vectors works if every force is quantized
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What does lambda in nuclear decay mean if it is big?
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I Tunneling of light through thin metal films
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I Electron wave addition using phasor diagram
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B Is it possible to find the energy level of a hydrogen atom in this way?
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I Robertson uncertainty relation for the angular momentum components
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I Is the Vacuum Energy Density Sign Correct for Bosons?
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I Constant phase factors in wavefunctions
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I How Does a Qubit Exist as Both 1 and 0 Simultaneously?
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I When does the separation of variables work
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I I want to expand a Gaussian wavepacket in terms of sines
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I Can a single photon of a single frequency pass through a FP cavity?
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I How Do You Compute the Density Matrix of a Bipartite State?
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I Noether's Theorem in the Presence of a Charged Operator
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I The lore on complex probabilities
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I Derivation of normal Zeeman-Effect
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I Is a Time Rotation Operator Analogous to Spatial Rotations Possible?
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I Electromagnetic radiation, photons, quantized energy levels
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I Are All Photons Truly Virtual?
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I The classical concept of work in a QCD context?
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I Virtuals particles, vacuum and infinite energy
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I The theory on the effects of polarizers on particles wavefunctions
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I TISE solutions should be combinations-of-eigenstates, why this is not?
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I Is this a valid quantum Cheshire cat?
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I Spin state, base transformation
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A Question on Zeno time derivation
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A Dimensions: Emergent from the Big Bang?
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A Question about a research result: Feedback on whether the result is publishable
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I Basic question about Bra-Ket notation
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B Entanglement & Superposition Probabilities
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B How are the spins of two entangled photons measured at light speed?
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A Can wave particle dualism be replaced by a monistic model?
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I Very basic questions about operators in QM
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I Why don't we bury Schrodinger's Cat?
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I Coefficients in the Schrodinger equation and the momentum operator
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I A probability of field amplitude in QFT
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A What happens when entangled photons are split into different paths?
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B Antiparticles moving opposite direction in time?
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I Double slit experiment with observer
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I Understanding the Derivation of the Ginzburg Criterion for the Ising Model
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B Are Schrodinger's cat and the double slit experiment the same idea?
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B Schrödingers cat, is it just mumbo-jumbo?
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A Relationship between bare and renormalized beta functions
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I Normalization of wave functions
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I Is the photon field a vector field and a gauge field?
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A Quantitative description of successive Stern-Gerlach measurements
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I Most Likely Position of an Electron
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I Commutators, operators and eigenvalues
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I How non-conscious can an Observer be and cause wave function collapse?
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B Is the Born rule truly independent from other postulates in quantum mechanics?
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A Don't understand equation with overleftrightarrow symbol
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B Quantum Physics Can Explain Earth’s Weather
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A Can particles appear and disappear "with" a cause?
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B Lifespan of a Photon: Debunking the Myth of Time Travel
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I Why must the state transformation be unitary?
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I The Delayed Choice experiment: Is Photon speed important?
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B Does the Wavefunction of an Electron Collapse When Captured by a Proton?
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I The electron is not point-like?
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I I cannot normalise this: F= Cexp(-r/a)
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I Question about Photons causing Electron Transitions in Atoms
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I Understanding Ground State Degeneracy in the Transverse Ising Model
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A Feynman loop diagrams and Dyson series for anomalous magnetic moment
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A Understanding Ghost Fields in QED: Eliminating Unphysical Degrees of Freedom"
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I The last step of this Green's function proof is not clear
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I Intersection of Condensed Matter Theory + High Energy Physics
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I Fine Structure Constant - 10 steps
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A Does the Zeno effect freeze all the commuting observables?
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A How Does Position Interact with Spin Angular Momentum in Quantum Mechanics?
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A Question about commutator involving fermions and Pauli matrices
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