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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 Bell's theorem and measurements not done
Undergrad How do photons transfer energy?
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Undergrad Superluminal Quantum tunneling without FTL messaging
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Undergrad What do the psi_3 and psi_4 components of the Dirac equation represent?
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High School Particles Within Atoms: Uncovering the Mystery of Forces and Vacuum
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High School Can Entangled Particles Stay Undetermined Despite Decoherence During Separation?
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High School Could a parallel universe exist?
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Undergrad Any other good sources on the Lamb shift other than Wikipedia?
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Undergrad What is the connection between the Lamb Shift and the g factor?
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High School Why do superpositions occur? What causes them to occur?
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Undergrad Are commuting observables necessary but not sufficient for causality?
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Graduate Hamiltonian in second quantization
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Undergrad Solving Schrodinger's eqn using ladder operators for potential V
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Undergrad The definition of the spectra in quantum mechanics
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Undergrad What gives an optimum value for electron energy to ionise atom?
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Undergrad Does anyone have a collection of the Dirac Equations?
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Undergrad Can Dirac Delta Functional Observables Be Regarded as True Quantum Observables?
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Undergrad What is the Complex Conjugate of a Hermitian Integral in QM?
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Undergrad Gauge in the Aharonov Bohm effect
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Undergrad What is the Definition of Quantum Physics?
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High School Objective-collapse theory, collapse for large objects
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Graduate Gauge invariance confusions: symmetry vs redundancy, active vs passive
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Undergrad Understanding Bra Ket Correspondence and Proving (1.8) Transformation
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Graduate What is the point of geometric quantization?
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Graduate Can Quantum Mechanics be postulated to exclude humans?
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Undergrad What is unique about the bra in Dirac bra-ket notation?
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Undergrad Physical interpretation of phase in solutions to Schrodinger's Eqn?
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Undergrad Bra Ket is equivalent to inner product always?
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Graduate QFT with vanishing vacuum expectation value and perturbation theory
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Undergrad Weak measurement and the measurement problem
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High School Why exactly do Virtual Particles not violate Conservation of energy?
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Graduate Interaction between matter and antimatter in Dirac equation
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Undergrad Superposition Angle Range in 2-Slit Experiment
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Graduate Why we can perform normal ordering?
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High School Is an experiment planned to discern determinism and randomness in QM
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Undergrad Particle and wave model understanding -- help please
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Undergrad Quantization of Quasiperiodic Orbits in the Bohr-Sommerfeld Model
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Undergrad Using the Schrodinger eqn in finding the momentum operator
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Undergrad Feynman path integral and events beyond the speed of light
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High School Can anyone help me with my high school paper on vacuum and quantum vacuum?
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Undergrad On the meaning and mathematics of rotating spin 1/2 particles
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High School Why isn’t quantum entanglement just correlation?
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High School Project on pulsars/electromagnetic quantum field
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Undergrad Problem involving a sequential Stern-Gerlach experiment
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High School Can the Motion of an Electron in Quantum Mechanics Be Reversed?
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Undergrad Can light meaningfully travel an infinite distance?
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Graduate Max Fidelity at $$F=|\langle\psi|\phi\rangle|^2$$
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Undergrad A quasi-analogy of wave-particle duality?
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Graduate Does the quantum space of states have countable or uncountable basis?
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Graduate What are the methods for calculating quantum phase transition?
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Undergrad Is time continuous or discrete in quantum physics?
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Undergrad Question about Grover's algorithm
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Undergrad Why can't classical models explain quantum entanglement?
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Graduate Is wave-matter duality a proven theory?
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Graduate Quantum linear code/ Dual Code (CSS) proof
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Undergrad Quantum spin, wavelength and frequency
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Undergrad Math of Electron Double Slit Experiment
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High School Bell Test Configuration Question
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Graduate What Does Constant Fidelity in Quantum States Imply?
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Undergrad ##H=i\hbar\frac{d}{dt}## is weird
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Undergrad Parity Operator in 2D: Understanding Transformation & Spin
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Undergrad Do measurements modify angular momentum and energy?
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High School Copenhagen Interpretation and collapse moment
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Undergrad Is the Vacuum Truly Empty or Just an Illusion?
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Graduate Fidelity for quantum state at t=0
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Graduate Is the Higgs Field Responsible for Microscopic Gravitational Effects?
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Undergrad Explaining Quantum States: Global Phase
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Undergrad Derivatives for a density operator
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High School Planck Length 1 Detector? Emitter?
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Graduate Are these papers on Quantum Electrodynamics true?
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Undergrad Question about the Feynmann-Stuckelberg interpretation
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Undergrad Schrödinger wave function: How to use it to get 3-D atomic orbitals?
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Undergrad What types of forces are described in the standard minimal QED Lagrangian?
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High School Is quantum coherence a random event?
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High School What Happens When a Photon’s Superposition Encounters a Black Hole?
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Undergrad Blackbody radiation in quantum mechanics
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Undergrad What are the Misconceptions Surrounding Virtual Particles?
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Undergrad Decoherence and direction of causality
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Graduate Simple S matrix example in Coleman's lectures on QFT
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Graduate Is there still a collapse problem after decoherence?
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Graduate Anharmonic oscillators with closed-form solutions
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Graduate Fidelity between initial and final states
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Undergrad Nature of Collision in Compton Scattering
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Undergrad What is the origin of translational motion?
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High School Question re photons/EM waves and the double slit experiment
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Undergrad The Meaning of Basis States in Quantum Mechanics
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Graduate Could QM Arise From Wilson's Ideas
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Graduate Knill-Laflamme condition Shors code
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Undergrad Are density matrices part of a real vector space?
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Undergrad Momentum in electromagnetic waves
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Undergrad Feynman's description of the quantum behaviour of an ammonia molecule
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High School Do eigenstate probabilities change with time?
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High School Could Spontaneous symmetry breaking cause momentum change in an atom?
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Undergrad Vacuum energy and Energy conservation
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High School Is quantum superposition involved in the Stern-Gerlach experiment?
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Undergrad Determining Momentum from Wavefunction
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High School How does quantum superposition really work?
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Undergrad Uncertainty principle equation for virtual particles
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Undergrad What is the quantum spin of a single electron in an (atomic) orbital?
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Graduate How to derive the Momentum and Energy Operators from first principles?
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Undergrad Developing Quantum Expressions using QUBO
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