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Quantum Interpretations and Foundations

How valid is the indivisible interpretation of quantum mechanics?
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Graduate How valid is the indivisible interpretation of quantum mechanics?
Graduate Simultanious eigenstate of Hubbard Hamiltonian and Spin operator in tw
  • schwarzg
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Undergrad Is Time Travel Possible with Entangled Particles?
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Graduate How far can one change a model before it leaves the universality class
  • thephystudent
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Undergrad Time independent perturbation theory in atom excitation
  • Malamala
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Undergrad Anticommutators of the spin-1 representation
  • Tony3
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Graduate Is the Landau pole in QED an artifact of perturbative methods?
  • Demystifier
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Undergrad What is the physical meaning of <p>?
  • blackbeans
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Graduate Creation/annihilation operators and trigonometric functions
  • jshtok
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Undergrad (In)dependence in entanglement experiments
  • entropy1
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Undergrad Describing entanglement collapse with absolute time
  • kurt101
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Undergrad Relationship between Planck Distribution and Quantization of Energy
  • HelpMeGodWithPhysics
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Undergrad Metal Semiconductor contact (Part 2)
  • Robotduck
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Graduate Understanding the Charge Distribution at the Metal-Semiconductor Interface
  • Robotduck
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Graduate Find Reduced Mass for Polyatomic Molecules
  • Iceking20
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Graduate Confusion about 2016 Unruh paper - fluctuating vacuum energy density?
  • asimov42
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Graduate Is the Berry connection compatible with the metric?
  • Joker93
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Undergrad "Spatial Width," "Coherence Length," and the Measurement Problem
  • charters
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Graduate Particle production in 1+1D QFT
  • QFT1995
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High School Beta decay and the down quark.
  • JackDixon
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Undergrad Influence on world's number and Bell's theorem
  • jk22
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High School Energy Band Diagram: K.E. & P.E. of Electron in Semiconductor
  • Robotduck
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Undergrad Understanding Bohr's Theory: Spacetime & Energy Momentum Relations Explained
  • PGaccount
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Undergrad Annihilation/creation operator question
  • KevinMcHugh
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Undergrad Hermitian operators in QM and QFT
  • WWCY
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High School What causes quantum uncertainty?
  • Ampulla
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High School Is information lost when a photon is absorbed?
  • wywong
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Undergrad How to collapse a water wave through a double slit into particle behaviour?
  • Happiness
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Undergrad Energy levels from the propagator
  • PGaccount
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Undergrad Is an electron's spin always in some definite direction?
  • Happiness
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Graduate Proof - gauge transformation of yang mills field strength
  • spaghetti3451
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Undergrad High Energy Physics: Positron-Electron Annihilation
  • geoelectronics
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Graduate Collapse in QM: in conflict with SR?
  • Auto-Didact
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Graduate Massive gauge bosons in QFT in/out states
  • Michael Price
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Graduate Does Quantum Mechanics Embrace Symmetry and Causality?
  • Huang
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Undergrad The Mystery of Atomic Decay: Is it Truly Random or is There More at Play?
  • artis
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Undergrad Can a free particle have a definite energy in quantum mechanics?
  • dRic2
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Undergrad Transition probability density between two transmitted states
  • amjad-sh
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Undergrad Doesn't the superposition in energy violate the conservation of energy
  • ftr
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Graduate Explicit form of annihilation and creation operators for Dirac field
  • QFT1995
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Undergrad Inadequate proof of Bloch's theorem?
  • Happiness
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Undergrad Is an atomic electron transition a phase transition?
  • Huang
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High School Entanglement & Wave Function Collapse
  • Lynch101
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Undergrad When is a system coherent or decoherent?
  • zekise
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Undergrad Confusion with superposition of states
  • ntt
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Graduate How Does Quantum Field Theory Preserve Causality?
  • Jamister
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9
Undergrad Equation for levitation forces between the magnets and superconductor
  • kipling_01
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Graduate Understanding time invariant of EM
  • jdou86
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10
Undergrad Force on Photon? Interaction with Matter Explained
  • bob012345
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5
Undergrad Spooky action at a distance by electrons?
  • Happiness
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Undergrad How does the von Neumann equation relate to Schrödinger's equation?
  • TeethWhitener
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Undergrad Why we need completeness of eigenfuntions for QM to be internally consistent?
  • Happiness
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High School Is Born's Rule Commutative in Quantum State Measurements?
  • etotheipi
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Undergrad Confusion about factoring in quantum computation
  • Haorong Wu
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3
Undergrad Preferred orientation of a nitrogen molecule in space?
  • Happiness
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24
High School Questions on QFT & QM: Is QM or QFT Absolute Time?
  • Lynch101
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Undergrad Photon states and interference in an Interferometer
  • zeronem
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Undergrad Would distinguishable particles experience bonding?
  • Happiness
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Undergrad Clebsch-Gordan coefficients and their sign
  • Aleolomorfo
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Undergrad Wave function when there is coupling between spin and position
  • Happiness
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High School Quarks and Antiquarks in a baryon
  • Anthony Beckwith
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High School Can a Quark Tunnel Out of a Proton?
  • Tumorsito
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Undergrad How to be sure we have found all magnetic quantum numbers?
  • Happiness
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Undergrad How to choose the way an excited electron loses energy?
  • GuillemVS
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Undergrad Is the Born Rule Derivable from Other Postulates in Quantum Mechanics?
  • tomdodd4598
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Undergrad Spherical Symmetry & Electron Spin: An Exploration
  • Happiness
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Undergrad Excited electrons' behaviour, how do they work?
  • GuillemVS
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Undergrad Why does an electron orbital have a preferred z axis?
  • Happiness
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High School Is a Universe Without Parallel Universes Possible in the Multiverse Theory?
  • Colonel Travis
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High School Might all physical quantities be quantized?
  • somega
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Undergrad Double Slit Experiment question
  • michael29
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Graduate How can we derive the results that we know about QM from QED?
  • Jamister
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High School IB Physics Extended Essay - Quantum Levitation
  • kipling_01
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Undergrad How electrons absorb or emit photons
  • Wille
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4
Undergrad Does a Gaussian wave packet remain Gaussian?
  • Happiness
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5
Graduate QED Bound States: Weinberg's Explanation & Breakdown
  • Jamister
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Undergrad Electric dipole moment of the nucleus of an atom
  • tamir
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5
Undergrad Are time and space continuous or discrete?
  • Haorong Wu
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Undergrad Voltage between electron and proton in ground state hydrogen atom?
  • epotratz
  • · Replies 26 ·
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High School What Are Quantum Fields and How Do They Relate to Particles?
  • sayetsu
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19
High School I formulating a research question for my Extended Essay
  • kipling_01
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3
High School Confusion over spin measurements
  • etotheipi
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2
Undergrad What is a Photon? - Physics Basics Explained
  • bhobba
  • · Replies 95 ·
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Graduate Is quantum theory a microscopic theory?
  • Demystifier
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High School Speed of light with quantum path integrals
  • Sophrosyne
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3
Graduate Representation of Super-Quantum probability
  • DarMM
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Undergrad Wave-particle duality revisited: Neither wave nor particle
  • A. Neumaier
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3
High School Quantum microphone and phonons
  • Solomei
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5
High School The Human Eye as a Detector in Double-Slit Experiment
  • Graeme M
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5
Undergrad God plays dice, stochastically and deterministically.
  • N88
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High School QFT & QM Questions (about time, locality, gravity, etc.)
  • Lynch101
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Undergrad Can you locally tell that a measurement you made was entangled?
  • PAllen
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Undergrad Multiplying two function operators
  • Pencilvester
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Undergrad Standard deviation of the Hamiltonian?
  • Kyle Nemeth
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2
Graduate Matrix transmission coefficient
  • amjad-sh
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Undergrad Is the Quantum State Holographic?
  • lucas_
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Undergrad Does science disprove this person's theory?
  • Rich76
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Undergrad Dirac's Gamma Matrices: What Are They & Do They Have Many Forms?
  • pallab
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Undergrad Why observables are represented as operators in QM?
  • MichPod
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Undergrad Is the Measurement Apparatus made up partly of electrons? Perhaps not.
  • lucas_
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High School What am I missing here? (QFT: ##e^- - p## scattering)
  • Wrichik Basu
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