Quantum Physics Forum

Graduate Entanglement and two particle system

Graduate Does quantum superposition mean particles exist everywhere simultaneously?

Graduate Is the harmonic oscillator Hamiltonian an unbounded operator?

Graduate In principle limitations of hidden variable theories

Graduate Entaglement and hidden variables

Graduate Where can I find information on spontaneous emission and Rabi frequency?

Graduate Adibatic Approx.(i.e., Born-Oppenheimer)

Graduate What is a 'representation' in Field Theory

Graduate Is it possible a virtual photon is massive particle?

Graduate What does Wikkepedia mean when they talk about Quantum tunnelling

Graduate The conjugate of a Wave-Function

Graduate Why is psi equal to psi' in vector expressions in QM?

Graduate Why do composite bosons only show Bose-Einstein statistics near absolute zero?

Graduate Why are the transitions in a Caesium atom called D1 and D2?

Graduate Methods of ionisation/excitation

Graduate How to Calculate Second Order Correlation from Master Equation?

Graduate Leó Szilárd invented a feedback protocol1

Graduate Dirac Spinor Algebra: Simplifying Expressions

Graduate Is there always a real solution for every real Hermitian eigevalue problem?

Graduate Can Single Photon Beams Exhibit Coherence?

Graduate Bell's theorem example: why 1/3 instead of 1/4

Graduate Why is energy quantized in Schrödinger's equation rather than mass or box size?

Graduate Calculating <\chi_3|H|\chi_3> w/ Dirac Notation Algebra

Graduate Does this expression has an exact solution?

Graduate Exploring Quantum Theory: Schrödinger's Cat & the Many-Worlds Interpretation

Graduate Quantizing the Klein-Gordon equation

Graduate Is there some reverse of annihilation?

Graduate Why did they propose QM postulate 3 about operator combinations?

Graduate How can I apply quantum mechanics to describe a photon gas in a box?

Graduate Two-particle fermionic basis states

Graduate Mixed State Eigenfuntion Equations

Undergrad Double slit experiment with electrons and larger particles

Graduate Why do we have to use operators in QM?

Graduate Question on Stern Gerlach experiment

Graduate Lacking information of the general quantum physics explanation

Graduate Elementary QFT question, part 2

Graduate Quantum immortality and engineering your universe?

• Poll

Graduate How many believes in Quantum Immortality ?

Graduate QFT Commutator (momentum and Hamiltonian) Issue

Graduate Heisenberg uncertainty principle derivation and canonically conjugate vairables?

Graduate Quantum Coaching on company website

Graduate Is every Hamiltonian necessarily Hermitean?

Graduate Self-learning QFT for mathematicians

Graduate Non-separability and solipsism

Graduate BRST nilpotency: showing s²ψ = 0 from Weinberg volume II

Undergrad Light propagation through polarizers

Graduate Explaining Continuous Time Random Walks: What Is It and How Is It Used?

Undergrad Trouble understanding band theory

Graduate Why vacuum has negative pressure?

Graduate Trouble understanding spin-1 Pauli matrices

Graduate Connection between quantum physics and the golden ratio

Graduate Entanglement carrying data variant

Graduate Fermi's golden rule for electromagnetic wave equations

Graduate Freewill = Macro Quantum Mechanics?

Graduate What Are the Commutator Relations Between Hermitean Operators A and B?

Graduate Spin Angular Momentum matrix of an antineutrino

Graduate Adiabatic Curvature - Deduce the Local Adiabatic Curvature K

Graduate Electromagnetic field in vacuum

Graduate Delayed Quantum Erasure Double Slit with Observer Choice Available

Undergrad Can Energy Be Converted to Mass?

Graduate Wondering about QM whether things are actually all deterministic?

Graduate Cause of the Heisenberg Uncertainty Principle

Graduate A Few Clear Questions on the Nature of Quantum Theory

Graduate How Do Photons Relate to Light's Wave-Particle Duality?

Graduate DoF of a Gauge Boson - Why Only 1 for Virtual Photons?

Graduate Transfer matrix, section in Jan Smit's book on Lattice Fields theory

Graduate Proof of simplified Baker-Campbell-Hausdorff formula

Undergrad What Are the Dimensions of One-Dimensional Wave Functions?

Graduate Is the Uncertainty Principle Statistical? And if so

Graduate How can I find the matrix representation of Green's function?

Graduate The origin of the quantum vacuum?

Graduate Is Quantum Mechanics Applicable to Everyday Life in the Macrocosm?

Graduate Solution to the Klein Gordon Equation

Graduate Pervasiveness of linear operators

Graduate Schroedinger's cat experiment, my question?

Graduate Does measuring entangled electrons collapse the wave pattern for the other particle?

Graduate Particle in a box: commuting energy and momentum operators

Graduate Struggling to understand the concept of spin triplets

Graduate Lagragians for spin 1/2 fields

Graduate About the unit of Radial wave function R(r) of Hydrogen atom

Graduate What is the relationship between Hilbert Space and space-time?

Graduate Energy in Schrodinger’s Equation

Graduate Wondering about entanglement at it's most basic level?

Graduate Is space continuous or discrete?

Graduate Second quantization particle current

Graduate Can an Electron's Angular Momentum Change by Absorbing Virtual Photons?

Graduate Why Does a Photon Not Have a Spin Component Sz=0?

Graduate Generator of Rotations: J_x, J_y, J_z Relationship

Graduate Momentum Operators and the Schwartz Integrability Condition

Undergrad Is an Electron a Boson or a Fermion?

Graduate Pauli matrices with two spacetime indices

Graduate How can a vacuum have energy and what is a wave function?

Graduate Time derivative of a Schrodinger-picture operator?

Graduate Are spinors rank-1/2 tensors or square roots of vectors?

Graduate Expectation Value: My Understanding vs. Prof.

Graduate Why use state vectors instead of phase space in quantum mechanics

Graduate Uncertainty Operators in Nouredine Zettili's Book

Graduate When is the norm of a state equal to 1?

Graduate Quantum Physics: Move of a Particle