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.
Threads
Graduate Is the singlet state just a special case of mixture?
- quantumphilosopher
- · Replies 1 ·
Graduate Densely defined operators of Fock space
- julian
- · Replies 2 ·
Graduate Gauge Boson Propagators in Spontaneously Broken Gauge Theories
- TriTertButoxy
- · Replies 1 ·
High School Longest photon wavelength observed?
- Loren Booda
- · Replies 15 ·
Graduate Wick rotation and contour integral
- koolmodee
- · Replies 4 ·
Graduate QM Notation: What's the Difference Between A* & A-dagger?
- JasonJo
- · Replies 7 ·
Graduate Understanding Extra Internal Degree of Freedom from QM and SR
- cefarix
- · Replies 13 ·
Graduate Ground State Energy of an Electron
- jbowers9
- · Replies 4 ·
Graduate Paradox seemingly violating relativity
- JeremySchw
- · Replies 8 ·
Graduate How to dertermine the Hamiltonian matrix
- hxwgter
- · Replies 1 ·
Graduate Transformation of energy space to momentum space
- queries
- · Replies 2 ·
Graduate Mixed Quantum States: Definition, Uses & Homework
- Tac-Tics
- · Replies 3 ·
Graduate Crossing nodes of wavefunction
- DeShark
- · Replies 5 ·
Graduate Solutions of TISE - is it all about groping in the dark?
- DeShark
- · Replies 6 ·
Graduate Force on Walls of Rectangular Potential Box by Particle Inside
- maverick280857
- · Replies 11 ·
Graduate What is the Explanation for the Double Slit Experiment in Quantum Mechanics?
- wofsy
- · Replies 3 ·
Graduate Calculation of scattering amplitude ratio for two different angles
- GAGS
- · Replies 1 ·
Graduate Resonance states and complex energies
- ismaili
- · Replies 5 ·
Graduate Eigenkets of a function of a hermitian operator
- shehry1
- · Replies 3 ·
Graduate Explaining Holevo Additivity: A Simple Guide
- ppnl
- · Replies 1 ·
Undergrad Wave packet conceptual question
- musashi1029
- · Replies 3 ·
Undergrad Faster then the speed of light
- toxonic
- · Replies 8 ·
Graduate What is the solution for the quantum harmonic oscillator formula for nucleons?
- bluestar
- · Replies 8 ·
Graduate Off the mass shell and external fields
- ismaili
- · Replies 1 ·
Graduate Entanglement and the double slit experiment
- DougBTX2
- · Replies 4 ·
Graduate The Borderworld between Quantum and Classical Physics
- mea
- · Replies 15 ·
High School Can uncertainties become smaller in certain cases?
- kodek64
- · Replies 4 ·
Graduate Particle & Anti-Particle Question
- Trip2
- · Replies 12 ·
Graduate Spin Conservation in Beta Decay of 22Na: Explained
- huyen_vyvy
- · Replies 1 ·
Undergrad Particle or Virtual Particle: What's the Difference?
- Trip2
- · Replies 12 ·
Graduate What Do Feynman Diagrams Reveal About Time Reversibility?
- Trip2
- · Replies 8 ·
Graduate Double Slit Experiment: Accounting for Other Particle Interactions
- Tac-Tics
- · Replies 2 ·
Graduate Refraction due to attractive potential
- missmaria
- · Replies 1 ·
Graduate The necessity of the 2nd quantization?
- weejee
- · Replies 15 ·
Graduate Bound states for a half harmonic oscillator
- praharmitra
- · Replies 2 ·
Graduate Double-slit experiment - a couple of questions
- Pastel
- · Replies 24 ·
Graduate Dimension of Hilbert Space in Quantum Mechanics
- vinay uppal
- · Replies 7 ·
Graduate Dimensions and the Generating Functional
- TriTertButoxy
- · Replies 2 ·
Graduate Seven Questions for Quantum Physicists
- dron
- · Replies 40 ·
Graduate What is the Controversy Surrounding Retrocausality?
- Jimih
- · Replies 16 ·
Graduate Can Noncommutative Operators Be Integrated in Quantum Mechanics?
- mhill
- · Replies 1 ·
Graduate Check If Operator Is Hermitian: Real Eigenvalue Test
- kthouz
- · Replies 4 ·
Graduate How to get QFT operator expectation values?
- tim_lou
- · Replies 2 ·
Graduate Variational principle convergence
- Manchot
- · Replies 2 ·
Graduate Is light an electromagnetic radiation. If so< then isn't it casued by
- sudhirking
- · Replies 2 ·
Graduate E=1/n^2 (-13.6eV) for other one-electron atoms –ionized helium (Z=2),
- MIA6
- · Replies 1 ·
Graduate Is Radiative Loss Accounted for in the Usual Treatment of Compton Scattering?
- Marty
- · Replies 9 ·
Graduate Why Must Potential Energy V(x) Be Real in the Schrödinger Equation?
- Felicity
- · Replies 4 ·
Graduate Understanding the Klein Gordon Lagrangian and Calculation Rules with Gradients
- flix
- · Replies 7 ·
Undergrad Difference between ionization energy and photoelectric effect?
- waterboy1234
- · Replies 2 ·
Graduate On General Measure of Entanglement
- krete
- · Replies 7 ·
Graduate Heisenberg Uncertainty Principal with regards to electron orbits
- ajassat
- · Replies 2 ·
Graduate Purely imaginary bound state wave functions?
- Einstein Mcfly
- · Replies 4 ·
Graduate How to calculate the many-body wavefunction
- unica
- · Replies 2 ·
Graduate HELP Can you find an electron in the exact middle of an S orbital?
- gomefun2
- · Replies 8 ·
Graduate Understanding Light: Questions & Answers
- GRB 080319B
- · Replies 32 ·
Graduate Fermi's Golden Rule and Density of States
- yaychemistry
- · Replies 8 ·
Graduate How does the delta function relate to the momentum operator in Dirac notation?
- dod13
- · Replies 7 ·
Graduate Basic QM question: Why do we describe free particles using Aexp(ikx) ?
- Dizzle
- · Replies 15 ·
Graduate Coupled quantum harmonic oscillators
- dflake
- · Replies 1 ·
Graduate Is Wave-Particle Duality of Light a Misleading Concept?
- ronjanec
- · Replies 7 ·
High School What part of the atom creates light?
- azzkika
- · Replies 9 ·
Undergrad Can Antiparticles be Visualized in Particle Detectors?
- futebol2014
- · Replies 3 ·
Graduate Could we do QM without time evolution ?
- mhill
- · Replies 1 ·
Graduate Canonical quantization with constraints
- mhill
- · Replies 1 ·
Graduate Could Hidden Dimensions Explain the Twin-Slit Experiment?
- orbit-one
- · Replies 2 ·
Undergrad Unraveling the Mystery of [Topic]: Implications of [Effect]
- madmike159
- · Replies 2 ·
Graduate Verifying a simple QFT derivation in Peskin's
- infiniteen
- · Replies 10 ·
Graduate Normalizing the Schrödinger Equation
- Desh627
- · Replies 3 ·
Graduate PBS Entanglement: Implications & Uses
- Degeneration
- · Replies 1 ·
Graduate Coincidence and Single Rate detection in Quantum Eraser experiments
- moving_on
- · Replies 1 ·
Graduate Gravity Propagation Experiment.
- GTrax
- · Replies 2 ·
Graduate Is Frequency a Fundamental Property of Signals or a Mathematical Construct?
- fisico30
- · Replies 6 ·
Undergrad Where can I start learning about quantum physics?
- thharrimw
- · Replies 13 ·
Graduate Proof of a commutator algebra exp(A)exp(B)=exp(B)exp(A)exp([A,B])
- ismaili
- · Replies 6 ·
Graduate Equating the uncertainty relations?
- ice109
- · Replies 2 ·
Graduate Proof that the eigenfunctions of a self-adjoint operator form a complete set.
- will.c
- · Replies 4 ·
Graduate Can Non-Commutative Geometry Redefine Our Understanding of Phase Space?
- mhill
- · Replies 1 ·
Graduate Relativistic Quantum Mechanics
- Domnu
- · Replies 2 ·
Graduate Can Two Photons Co-Orbit Stably Through Mutual Energy Attraction?
- Loren Booda
- · Replies 2 ·
Graduate (1/2,1/2) representation and photon
- ismaili
- · Replies 6 ·
Graduate Ground state energy of hydrogen atom
- Bosonichadron
- · Replies 2 ·
Graduate Spread fo wavefunctions - filling the universe?
- franoisbelfor
- · Replies 2 ·
Graduate Questions on Feynman's view on Double slit experiment
- suomi
- · Replies 15 ·
Graduate What is the Pauli-Lubanski Pseudo-Vector and How Can its Invariance be Proven?
- udaraabey
- · Replies 4 ·
Graduate Finding Simplicity in Summation Expressions
- Final
- · Replies 3 ·
Graduate Why do we describe electron wave functions in 3n-dimensional phase space?
- Marty
- · Replies 9 ·
Graduate Exploring Imaginary Shifts in QFT: A Necessary Tool for Convergence?
- haushofer
- · Replies 4 ·
Graduate Simple QM Question: Eigenfunctions and Eigenvalues
- h0dgey84bc
- · Replies 9 ·
Graduate Exclusion principle in quantum gasses
- Quant ummm?
- · Replies 1 ·
Undergrad Differing formulae for power emission
- PatF
- · Replies 1 ·
Graduate Eigen function, eigen value, eigen vector
- jason.bourne
- · Replies 2 ·
Graduate Schrodinger Equation and Energy Quantization
- quantumlaser
- · Replies 39 ·
Graduate Question on Time Reversal and Degeneracy
- RedX
- · Replies 1 ·
Undergrad Electron interference in double-slit experiment
- markoX
- · Replies 3 ·
Graduate Can a Pulse Be Shorter Than One Wavelength?
- fisico30
- · Replies 12 ·
Graduate Transpose of Grassmanian variables
- ismaili
- · Replies 1 ·
Graduate QED Lagrangian lead to self-interaction?
- per.sundqvist
- · Replies 138 ·
Graduate Antimatter from time-traveling electrons
- mcmagicman530
- · Replies 3 ·
Graduate Coexistence of QT and Relativity
- dkgolfer16
- · Replies 35 ·