Quantum Physics Forum

Graduate Superposition/Wave function inside blackhole

Undergrad Electron and the uncertainty principle

Graduate What is the Volume of an Electron?

Graduate Statistical Mechanics: Using 3 Ensembles for Problem Solving

Graduate Nature of Real Applications Quantum Mechanics

Undergrad Why square the absolute value of probability amplitudes in quantum mechanics

Graduate Why Do Subatomic Particles Spin?

Graduate Can Measurements Determine Pure vs. Mixture Ensembles in Quantum Theory?

Graduate Renormalization and running coupling constant

Graduate What Do Bell Tests Reveal About Photon Polarization and Reality?

Graduate Experiments in quantum entanglement

Graduate What are the required mathematics for studying Quantum Field Theory?

Graduate Is antimatter matter going backwards through time?

Graduate Is Quantum Entanglement the Secret Behind Photosynthesis?

High School Question re electrostatic charge

Graduate Quantum Effects Brought to Light

Graduate How does time dilation affect entangled particles in a moving spaceship?

Graduate Can quantum entanglement transmit information for cell phones?

Graduate Why do energy eigenstates give position probability via |ψ(x)|²?

Graduate Quantum Chaos: Existence and Stability

High School Double slit experiment for AP physics

Graduate How can information be conserved if we live in a quantum universe?

Graduate Proof of uncertainty principle

Graduate Proving a Claim in Ticcati's Red QFT Textbook: Seeking Advice and Hints

Graduate Why is inertial mass not an observable in QM?

Graduate What is normally meant by quantizing a classical theory, versus Hardy's axioms

Graduate The Gauge Dependence of Quantum Transition Probabilities

Graduate Potential energy as observable

Undergrad Are Schrodinger's Equations Taught in Lower Division Physics Courses?

Graduate We know that if we send one electron through 2 slit, the wave function

Graduate Potential Invariant under translation

Graduate How Does the Angle Between Axes Affect Spin Correlation in Entangled Particles?

Undergrad Fictional connection between music and string theory

Graduate Can virtual strings create more virtual particles?

Graduate Time-dependent Schrödinger equation in perturbation theory

Undergrad Prove that information is either increasing or remaining constant with time.

Graduate Violation of uncertainty principle?

Graduate Does a symmetry of Lagrangian reserve in each Feynman diagram?

Graduate Deriving Wien's Law from Planck's Formula

High School Need an explanation of shells in layman's terms

Graduate Is mass something that is uncertain ?

Graduate What are the fundamental concepts and axioms of quantum mechanics?

Graduate What Is the Source of Spin-Orbit Coupling in the Hydrogen Atom?

Graduate Does a single electron transistor really need the tunneling junctions?

Graduate What is the Relationship Between K-Space and Momentum Space in Crystals?

Graduate Second quantization question: one particle or n particle?

Graduate QM Particles and their space boundaries

Graduate Schrödinger's equation to Dirac's

Graduate Why does D·exp(iy)−1 equal D−1+iy in Dirac's displacement operator?

Graduate Scalar field as quantum operator.

Graduate Is a finite function with finite Fourier transform possible?

Graduate How does the commutator of fields relate to causality?

Graduate Quantum Coherence in Transmembrane Proteins?

Graduate Calculating the energy-momentum tensor for Maxwell Lagrangian

Undergrad What causes the polarization effect in optics?

Graduate Can we understand neutrinos as information?

Graduate Not following one step for Ehrenfest's theorem

Graduate On the complementarity principle

Graduate Scope of Hilbert Space of a System?

Graduate Can increasing the potential width α decrease the coupling constant λ?

Graduate A 'Classical' object behaving Quantum?

Graduate Standing Waves and Radiation Emission

Graduate Quantum numbers in wikipedia's table

Graduate Lorentz Transformation of Fields

Graduate Do the Hamiltonians for a particle in a 1D box commute when the box length changes?

Graduate Are photons in a laser beam independent and tensor products of single-photon states?

Graduate What is so special about quantum entanglement?

Graduate Why use second quantization and field operators

Graduate What other experimental evidence exists for entanglement?

Graduate Why do physicists believe the Planck scale is fundamental?

Graduate Why the carrying force fields must be the fields of Boson particles?

Graduate Density matrix's non-diagonal components

Graduate Quantum mechanics texts starting from the canonical commutation relation

Graduate Quantum Eraser and Its Implications

Graduate Could aerogel slow down quantum levitation by retaining heat?

Graduate Verification of probabilities for various states

Graduate How do you integrate the Hopf term in 2+1 dimensions?

Graduate Zeeman effect, something I'm not understanding, about history

Graduate I want to understand positive operator valued measures in QM

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Graduate Questions regarding a paradox.

Graduate Why Can't Free-Particle Wave Functions Be Normalized Over Their Entire Range?

Graduate Quantum control of a looped beam.

Graduate Normalization of a free particle quantum state

Graduate Why wave function should goto 0 f faster than 1/sqrt(x) at infinity

Graduate Photon Average Energy in a Cavity Resonator

Graduate Learning Dirac Notation: Writing Hamiltonian for 3 States

Graduate How Are Planck Time and the Expression \(\sqrt{\frac{\hbar c^5}{G}}\) Related?

Graduate Does Quantum Mechanics Allow for a Time Operator?

Graduate Is the Uncertainty Principle affected by the number of particles in a system?

Undergrad Two hydrogen atom with same spin can form H_2?

Graduate What is an Observer in Quantum Physics?

Graduate Proving Shouten identity in QFT

Graduate Classically predicted ionisation energy of H

Graduate Wavepacket Dispersion and how this links to particle behaviour

Graduate The quantomic oscillator's amplitude

Graduate Why does Lagrangian in QFT only include first order derivative of field?

Graduate Why are eigenvalues the allowable values in quantum mechanics?

Graduate What corresponds to a static field in QFT

Graduate How Does Polarization Relate to Photon Degeneracy?