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.
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Graduate Is the Commutation Relation for Angular Operators in Hilbert Space Valid?
- facenian
- · Replies 2 ·
Graduate What is the relationship between matter and waves in quantum mechanics?
- Idyllic
- · Replies 18 ·
Graduate Is the Matrix Representation of a Unitary Operator Always a Unitary Matrix?
- facenian
- · Replies 6 ·
Graduate If light were an electromagnetic wave
- conway
- · Replies 20 ·
Graduate Short distance divergences in thermal states
- DrFaustus
- · Replies 13 ·
Graduate Question on step potentials and schrodingers equatio
- marmot
- · Replies 3 ·
Graduate Is the generation of one electron at a time probabilistic or deterministic ?
- Faz
- · Replies 3 ·
Graduate Optical Theorem: Understanding Conservation of Particles & Probability
- parton
- · Replies 3 ·
Graduate Time Evolution Operator & Classical Hamiltonian: Relating the Two
- jfizzix
- · Replies 3 ·
Graduate Jahn-teller theorem and the CH_4 molecule
- wdlang
- · Replies 2 ·
Graduate Normal coordinate substitutions with periodic boundary conditions
- phdojg
- · Replies 1 ·
Graduate Quantum Physics and Parallel Universes and your mind
- Restless Mind
- · Replies 17 ·
Graduate Experimentally Verifying Photon Spin: Beyond Stern-Gerlach
- jostpuur
- · Replies 17 ·
Graduate Duality of Electron: Mass, Charge and Wave Mechanics
- earamsey
- · Replies 28 ·
Graduate Is relativity the ultimate explanation for all uncertainties in physics?
- ZacharyFino
- · Replies 11 ·
Graduate Photons and the Uncertainty Principle
- Qbit42
- · Replies 2 ·
Graduate Quantum Mechianics and Telecommunications Engineering?
- Peon666
- · Replies 1 ·
Graduate First Energy Level Meaning: What Does It Mean?
- omri3012
- · Replies 2 ·
Graduate From Wave to Ket: Transform State Vector
- snoopies622
- · Replies 5 ·
Graduate Welcome All: Unravelling the Mysteries of Photons
- Nios
- · Replies 5 ·
Graduate Spontaneous parametric down-conversion practicalities
- auspaco
- · Replies 2 ·
Graduate How Do You Compute Derivatives in Dirac Notation with Mathematica?
- Jooya
- · Replies 1 ·
Graduate How Close Are We to Reaching the Landau Pole in QED?
- RedX
- · Replies 3 ·
Graduate Is there an intermediate 'particle' to pair production?
- Rymer
- · Replies 17 ·
Undergrad What is Touching: Examining the Microscopic Level
- leroyjenkens
- · Replies 4 ·
Graduate Understanding the Equation 2.14 and its Application in Srednicki's Theory
- nrqed
- · Replies 7 ·
Graduate Collapse of Pauli exclusion principle
- lark
- · Replies 4 ·
Graduate Why do subatomic particles act the way they are?
- T.O.E Dream
- · Replies 19 ·
Graduate How does the substitution in equations 3.2.4 and 3.2.5 work?
- marmot
- · Replies 4 ·
Graduate How is Hardy's Paradox resolved in quantum mechanics?
- Descartz2000
- · Replies 1 ·
Graduate Combining Hamiltonians for a Two-Particle System
- erkokite
- · Replies 2 ·
Graduate Angular momentum and hydrogens atom
- JK423
- · Replies 19 ·
Graduate Some confusion about Ballentine Sec 3.3 Generators of Gallilei Groups
- jbergman
- · Replies 4 ·
High School Atomic Energy Levels: Discrete vs Continuous
- crazy777
- · Replies 1 ·
Undergrad Photon Generation Questions and Answers
- mgd2009
- · Replies 8 ·
Graduate What is a 'magnetic substate'? (Magnetic-Optical Traps)
- Shukie
- · Replies 5 ·
Graduate Is Quantum Physics the theory of everything if
- Delta2
- · Replies 2 ·
Graduate Is the concept of degeneracy in quantum states always applicable?
- Niles
- · Replies 29 ·
Graduate Quantum mechanical resistivity
- kakabaka
- · Replies 2 ·
Graduate Consider parity then it is no longer enough to talk about two spinors
- depressedmath
- · Replies 1 ·
Graduate Annihilation - matter/antimatter
- jnorman
- · Replies 6 ·
Graduate Research on Black Hole Questions: Membranes vs Non-String Universe
- MEKer
- · Replies 5 ·
Graduate How Do Holes and Time Influence Calabi-Yau Manifolds in String Theory?
- MEKer
- · Replies 1 ·
Graduate Point Particles vs. String Theory
- daisey
- · Replies 22 ·
Graduate What Is the True Nature of Vacuum Space in Quantum Mechanics?
- redhedkangaro
- · Replies 4 ·
Graduate Is Quantum Mechanics Tried, True, Wildly Successful, and Wrong?
- ovoleg
- · Replies 3 ·
Graduate Understanding Dirac Notation: A Simplified Explanation for Scientists
- Storm Butler
- · Replies 39 ·
Graduate How Do Gravitons and Photons Compare in Quantum Theory?
- Naty1
- · Replies 1 ·
Graduate How Does the Infinite Potential Well Illustrate the Uncertainty Principle?
- omri3012
- · Replies 4 ·
Graduate Does Electron Superposition Eliminate Angular Momentum?
- DeepSeeded
- · Replies 5 ·
Graduate Superpositons of a uranium atom
- SW VandeCarr
- · Replies 28 ·
Graduate Quantum Teleportation Research: Particles & Distances
- Wayne001
- · Replies 1 ·
Graduate Discretization of Lz: Does m Have to Be Integer?
- ArielGenesis
- · Replies 11 ·
Graduate Wave Equation in 2 Dimensions - Basic
- DougD720
- · Replies 5 ·
Graduate SU(2) in Standard Model and SUSY extensions
- RedX
- · Replies 3 ·
Graduate Massless Particles: Gauge Bosons, Photons & Gluons
- monty37
- · Replies 11 ·
Graduate What is the advantage of the truncated wigner approximation?
- wdlang
- · Replies 1 ·
Graduate How do renormalization and dressed particles eliminate self-energy?
- RedX
- · Replies 4 ·
Graduate Uncertainty of a single photon in light scattering question
- invisigo
- · Replies 2 ·
High School Do Electrons in Higher Energy Orbitals Move Faster Than Those in Lower Ones?
- Quantom
- · Replies 35 ·
Graduate What is an Eikonal Factor in QED and QCD?
- TriTertButoxy
- · Replies 1 ·
Graduate Polarization Eraser & Entanglement
- DrChinese
- · Replies 1 ·
Graduate Question about the Klein Gordon Propagator
- maverick280857
- · Replies 1 ·
Graduate Density Matrix Doubt: Can Coherance Be Zero?
- harish.ravi
- · Replies 2 ·
Undergrad Quantum Chemistry vs Physics: A Student's Dilemma
- mccoy1
- · Replies 1 ·
Graduate How to solve generalised eigenvalue problems?
- ngkamsengpeter
- · Replies 3 ·
Graduate What is the true nature of vacuum energy in quantum physics?
- eoghan
- · Replies 18 ·
Graduate Wanted: quotes that encourage thinking of experiments instead of measurements
- Peter Morgan
- · Replies 4 ·
Graduate The significance of commutation
- snoopies622
- · Replies 4 ·
Graduate Quantum Computing: Find People With Knowledge & Experience
- mrberty
- · Replies 2 ·
Graduate Quantum Gravity and time's arrow
- hatfarm
- · Replies 2 ·
Graduate Is Weak Isospin Conserved in Particle Physics?
- RedX
- · Replies 1 ·
Graduate Quantum Mechanics and Special Relativity (violations)
- cgnicholls
- · Replies 20 ·
Graduate What is the value of the fine structure constant at Planck energy?
- heinz
- · Replies 4 ·
Graduate Commuting operators => Common eigenfunctions?
- JK423
- · Replies 18 ·
Graduate Entanglement, causality and local realism
- karatemonkey
- · Replies 51 ·
Graduate How does CMBR differ from ether (SR self study - Question from W. Rindler)
- maverick280857
- · Replies 4 ·
Graduate Transmission function(probability) T(E) in tight binding
- rejinisaac1
- · Replies 5 ·
Graduate From Cartan's Theory of Spinors, x1^2 + x2^2 + x3^2 = 0
- Spinnor
- · Replies 4 ·
Graduate How is Single Photon Polarization Determined in Free Space?
- psycherevolt
- · Replies 3 ·
Graduate What does the eigen equation in quantum mechanics mean physically?
- univector
- · Replies 17 ·
Graduate Does Multi Path Integral Formulation Violate Special Relativity?
- cragar
- · Replies 4 ·
Graduate Poincare-representation of majorana spinor
- torus
- · Replies 7 ·
Undergrad Compton effect vs photolectric effect
- math_04
- · Replies 2 ·
Graduate What would be outcome of experiment?
- zonde
- · Replies 3 ·
Graduate Questions on chapter 95 in Srednickis QFT book, Supersymmetry
- malawi_glenn
- · Replies 5 ·
Graduate A pair of 2D harmonic oscillators at a point and Dirac eq.
- Spinnor
- · Replies 1 ·
Graduate Gauge invariance of superpotential
- RedX
- · Replies 6 ·
Graduate Electron Orbit: Exploring Kenneth W. Ford's Quantum World
- daisey
- · Replies 16 ·
Graduate Relation between decay rate (lifetime) and spectral width
- Chen
- · Replies 15 ·
Graduate Understanding Ansatz in Quantum Mechanics: Types and Applications
- AxiomOfChoice
- · Replies 1 ·
Graduate Quantum Mechanical analogy of Newton's third law
- sokrates
- · Replies 7 ·
Graduate Question about a harmonic oscillator integral
- Heath Watts
- · Replies 2 ·
Graduate Photoelectric effect and light polarization in Wikipedia
- lightarrow
- · Replies 6 ·
Graduate Why fundamental quantization of energy is hv?
- janakiraman
- · Replies 33 ·
Graduate KP 8 Band Model: Exploring Quantum Well Structures
- N_B
- · Replies 1 ·
Graduate Pre-requisites for path integral formulation?
- hawkingfan
- · Replies 4 ·
Graduate Operator in exponential function and generating function
- ChrisLM
- · Replies 1 ·
Graduate Massless representations of the Poincare group
- nrqed
- · Replies 2 ·
Graduate Derivation of Uncertainty Princple
- ChrisLM
- · Replies 2 ·