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.
Sub-forums
Threads
Graduate Quantum nature of the inertia and Mach principle
- Peter Leifer
- · Replies 2 ·
Graduate Quantum Puzzle:Photoelectric effect
- cosmicraj
- · Replies 1 ·
Graduate How can I interpret the superpostion of Fourier analysis?
- boladore
- · Replies 2 ·
Graduate Compton Scattering Concept Question
- godtripp
- · Replies 5 ·
Graduate Spin vector and operator transformations query
- deneve
- · Replies 1 ·
Graduate Quantum random number generator with radioactive decay
- alfcoder
- · Replies 1 ·
Undergrad Difference between de-excitation and ionization
- rama1001
- · Replies 3 ·
Graduate Can a qubit measurement yield a continuous value within a range?
- captainhampto
- · Replies 4 ·
Graduate Probabilities in QM is like Diffusion in Thermodynamics
- Alfrez
- · Replies 16 ·
Graduate Is It Possible to Reduce Mass to Zero?
- Kalrag
- · Replies 12 ·
Graduate Normal order of operator product
- paweld
- · Replies 5 ·
Graduate When can eigenvalue equations be used?
- metroplex021
- · Replies 5 ·
Graduate DNA Waves and Water: Examining Nobel Prize Winner's Experiment
- Bob Loblaw
- · Replies 1 ·
Graduate Wavefunction solution to the Schrödinger Wave Equation for a H atom
- Horseb0x
- · Replies 2 ·
Undergrad The 6 hydrogen spectral line series'
- Horseb0x
- · Replies 4 ·
Graduate Wave Function mathematical vs real
- daezy
- · Replies 20 ·
Undergrad Light Momentum: How Can Light Have Momentum if its Speed is Constant?
- paddys09
- · Replies 3 ·
Graduate Do Virtual Particles Travel Faster Than Light and Violate Causality?
- Dynamic Sauce
- · Replies 3 ·
Graduate Finite and infinite cross sections
- The_Duck
- · Replies 5 ·
Graduate A mathematical issue raised from perturbation theory
- kof9595995
- · Replies 6 ·
Undergrad Do Other Nature Waves Exhibit Particle Behavior?
- cosmicraj
- · Replies 1 ·
Graduate Physical system for this two level Hamiltonian?
- Peeter
- · Replies 2 ·
Undergrad Quantum, photon, wavelength relationship
- Pierre007080
- · Replies 25 ·
Graduate Interacting QFT - construction of states
- paweld
- · Replies 4 ·
Graduate 2d Schrodinger equation - numerical solutions
- diegzumillo
- · Replies 3 ·
Undergrad What is wave-particle duality and how does it apply to electrons?
- Godwin Kessy
- · Replies 39 ·
Graduate Spin behavior in entangled electron pair
- daezy
- · Replies 2 ·
Graduate What is the Quantum Defect and Its Relation to Energy Levels in Hydrogen?
- spaghetti3451
- · Replies 4 ·
Graduate Why does uncertainty principle give momentum magnitude, not just uncertainty?
- tommy01
- · Replies 13 ·
Graduate Particles, waves or none of the above?
- TrickyDicky
- · Replies 12 ·
Graduate Lagrangian, scalar or pseudo-scalar?
- salparadise
- · Replies 1 ·
Graduate Parity dependence on the orbital quantum number (l)
- soccer_dude13
- · Replies 1 ·
Graduate No Definite Properties Before Measurement
- daezy
- · Replies 2 ·
Undergrad In the double slit experiment - what exactly is the measuring device?
- Edi
- · Replies 6 ·
High School Behaviour of photons in a 'sealed room'
- NeilWallace
- · Replies 9 ·
Graduate Does frequency imply wave nature if energy is quantized?
- Sopandev
- · Replies 11 ·
Graduate Are virtual particles really there?
- wangyi
- · Replies 250 ·
Graduate Is modelling REALLY impossible in quantum mechanics?
- ZuzaMagda
- · Replies 11 ·
Graduate The Uncertainty of Particle Positions and its Effect on Probability Densities
- mrspeedybob
- · Replies 8 ·
Graduate QM Measurement Problem: Expectation Value of Lz
- y.moghadamnia
- · Replies 2 ·
Graduate Triplet states in quantum dots
- McKendrigo
- · Replies 1 ·
Graduate What is meant by singlet and triplet state of an electron system?
- saravanan13
- · Replies 11 ·
Graduate Information: finite or infinite?
- gluefish
- · Replies 1 ·
Graduate Why do SHM solutions have no imaginary values?
- AdrianMay
- · Replies 5 ·
Graduate How Do Absorption/Emission Lines Relate to Black Body Radiation?
- Drakkith
- · Replies 8 ·
Graduate What is the origin of subatomic forces?
- NeilWallace
- · Replies 7 ·
Graduate Is the Path Integral Formulation of Quantum Mechanics Violating the Speed Limit?
- ahmedcoe
- · Replies 18 ·
Undergrad Quantum Physics Basics: An Overview
- physicsnoob12
- · Replies 13 ·
Graduate Breaking down the wave function
- -=Red=-
- · Replies 6 ·
Graduate Throwing a tennis ball through a wall
- playmesumch00ns
- · Replies 97 ·
Graduate Step operators for harmonic oscillator
- TorKjellsson
- · Replies 2 ·
Graduate Massless Dirac equation and graphene
- Theo1
- · Replies 6 ·
Graduate Why doesn't the detector in the double slit experiment collapse the wave function?
- Meddle
- · Replies 3 ·
Graduate The generator of Galilean boosts
- Kirjava
- · Replies 11 ·
Undergrad Is universe creation from quantum vacuum fluctuation a theory or hypothesis?
- revo74
- · Replies 10 ·
Graduate Infinite well with two regions
- soothsayer
- · Replies 2 ·
Graduate Inverting perturbation series with logarithmic regulators
- zetafunction
- · Replies 1 ·
Graduate Counting Distinct Diagrams in Scalar Field Theory
- whynothis
- · Replies 2 ·
Graduate Proof that spin determines boson or fermion statistics
- Funzies
- · Replies 5 ·
Graduate Can quantum interactions between atoms explain gravity on a pebble planet?
- i_am_a_newbie
- · Replies 4 ·
Graduate Why stimulated photons travel in the same direction as the incident photon
- provolus
- · Replies 13 ·
Graduate Can a quantum particle appear inside a tunnel barrier?
- nonequilibrium
- · Replies 16 ·
Graduate Is J_z|0> equal to zero in QFT for spinor field?
- Heirot
- · Replies 22 ·
Graduate Could Inter-Dimensional Interference Explain Dark Matter and Energy?
- h1ghf1ve
- · Replies 2 ·
Graduate Is an Electron Truly a Point Particle Without Size?
- NGC_224
- · Replies 1 ·
Graduate Spin-wave approximation - bosonic operator question
- barnflakes
- · Replies 4 ·
Graduate What is the actual shape of a photon and how can it be measured directly?
- oldphysicist
- · Replies 14 ·
Graduate Is there a link between non-locality and non-linearity?
- cryptist
- · Replies 12 ·
Graduate Does decoherence make quantum mechanics deterministic like statistical mechanics?
- kof9595995
- · Replies 7 ·
Graduate Ground state wavefunction real?
- krishna mohan
- · Replies 5 ·
Undergrad Question on Passage in Six Easy Pieces
- LarryOnline
- · Replies 5 ·
Graduate Representing a vector in terms of eigenkets in a continuos basis
- FedEx
- · Replies 8 ·
Graduate Can uncertainty in position and velocity cause mass uncertainty?
- soothsayer
- · Replies 3 ·
Graduate Sum of Histories Simultaneous Paths
- PhanthomJay
- · Replies 3 ·
Graduate Second route to a relativistic quantum theory
- Orbb
- · Replies 10 ·
Graduate Can we demontrate the convergence of perturbation quantum field theory?
- ndung200790
- · Replies 5 ·
Graduate Constructing a Pseudo-Quantum Computer
- captainhampto
- · Replies 1 ·
Graduate Quantum fluctuations in a vacuum
- p764rds
- · Replies 1 ·
Graduate How does non-commutativity emerge from path integral?
- kof9595995
- · Replies 2 ·
Graduate Irreducible representations and elementary particles
- cbetanco
- · Replies 15 ·
Graduate Does the poincare conjecture disprove the shape of strings in string theory
- clearwater304
- · Replies 2 ·
Graduate Does Heisenberg's equation encapsulate Noether's theorem in quantum mechanics?
- lalbatros
- · Replies 5 ·
Graduate Wave/particle duality - electrons and photons
- namewills
- · Replies 12 ·
Graduate Philosophical assumptions in quantum mechanics and logical positivism
- wittgenstein
- · Replies 65 ·
Graduate Is quantum mechanics an understood theory?
- scope
- · Replies 7 ·
Graduate Retrocausality in weak measurements of laser deflection
- YLW
- · Replies 10 ·
Graduate Bosonic operators and fourier transformation.
- barnflakes
- · Replies 3 ·
Graduate Using a beam splitter interferometer to generate random numbers
- captainhampto
- · Replies 1 ·
Undergrad What does the dual nature of electron mean and how do orbitals fit in?
- PrincePhoenix
- · Replies 12 ·
Graduate Why do people even teach quantum mechanics without braket notation?
- Simfish
- · Replies 16 ·
Graduate Maximum distance of quantum tunneling using an STM
- The_Thinker
- · Replies 8 ·
Graduate Quantum effects in a single-slit experiment
- Uhtred
- · Replies 13 ·
Graduate Can Light Cones Determine the Absolute Sequence of Quantum Measurements?
- thenewmans
- · Replies 1 ·
Graduate Concerning the electromagnetic capacity for an electron
- Kidphysics
- · Replies 8 ·
Graduate Measurement disturbance - double slit
- namewills
- · Replies 7 ·
Graduate Spin 3/2 from (3/2,0)+(0,3/2) vs Rarita-Schwinger
- gazebo_dude
- · Replies 1 ·
Graduate Do All Gauge Fields Intrinsically Contribute to the Lagrangian?
- Living_Dog
- · Replies 5 ·
Graduate How Is the Natural Linewidth of a Laser Determined?
- komalpahwa65
- · Replies 1 ·
Graduate Massive vector boson propagator - Definition
- mchouza
- · Replies 2 ·
Graduate Does the Stern-Gerlach experiment apply a Hadamard transform?
- captainhampto
- · Replies 3 ·