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Ashcroft and Mermin 16.1b: collision integral and equilibrium
- MathematicalPhysicist
- · Replies 2 ·
Legendre polynomials, Hypergeometric function
- LagrangeEuler
- · Replies 10 ·
How to apply Bell state projectors to three-particle systems in quantum teleportation
- Markus Kahn
- · Replies 3 ·
Quantum energy of a particle in 2 dim space
- Apashanka
- · Replies 8 ·
Where does the delta function go in the Klein-Gordon equation solution?
- Ayoub Tamin
- · Replies 2 ·
What is the coefficient of drag on a flat surface?
- EelAnes
- · Replies 7 ·
MATLAB Code: Stationary Schrodinger EQ, E Spec, Eigenvalues
- Baynie
- · Replies 1 ·
Determining Eigenvalues and Eigenvectors in a Coupled 2-Particle System
- Markus Kahn
- · Replies 17 ·
Quantum energy of a particle in a 2 dimensional space
- Apashanka
- · Replies 1 ·
Why can't values of M for J=2 contain values of M for J=1 in np2 configuration?
- proton4ik
- · Replies 3 ·
Hamilton Jacobi equation for time dependent potential
- DanielA
- · Replies 1 ·
Quantum Zeno Effect and Evolution Operator Properties
- Markus Kahn
- · Replies 2 ·
How would you calculate how deep an object would go in water?
- flamephoenix15
- · Replies 6 ·
Ground state and 1st excited state energy of 3 Fermions
- catpotato
- · Replies 6 ·
Wave function in a hydrogen atom : normalization
- Another
- · Replies 2 ·
Calculating the decay rate for h -> phi phi process
- Peeter
- · Replies 1 ·
Approximations with the Finite Square Well
- doggydan42
- · Replies 16 ·
What is the dynamic viscosity of air?
- Angelina21
- · Replies 3 ·
Doping semiconductors compounded from various element groups
- Matthew Strasiotto
- · Replies 1 ·
Proof of allowed and forbidden electron state transition.
- Send BoBs
- · Replies 10 ·
Bound surface charge on a linear dielectric half-cylinder
- Daniel Sellers
- · Replies 4 ·
Dodelson Cosmology 6.8 Inflation Klein Gordon Equation
- StuckPhysicsStudent
- · Replies 2 ·
Calculating Clebsch–Gordan coefficients
- Markus Kahn
- · Replies 6 ·
Deriving the MTW version of the Einstein-Hilbert density
- TerryW
- · Replies 1 ·
Expressing the density matrix in matrix form
- Morbidly_Green
- · Replies 2 ·
How to prove that electric field propagates like a wave?
- Adesh
- · Replies 5 ·
Equilibrium height of an air parcel
- Raihan amin
- · Replies 6 ·
Divergence of the amplitude for a Feynman diagram
- Raymont
- · Replies 1 ·
QED Lagrangian in terms of left- and right-handed spinors
- sebomba
- · Replies 1 ·
Expectation value of x² using integration by parts
- Lasse Jepsen
- · Replies 7 ·
Prove formula for the product of two exponential operators
- astrocytosis
- · Replies 2 ·
Anti-commutation of Dirac Spinor and Gamma-5
- Dewgale
- · Replies 1 ·
Massless theories can be conformally invariant
- Joker93
- · Replies 1 ·
Isospin Doublet Derivation Using Clebsch-Gordan Coefficients
- nigelscott
- · Replies 2 ·
What Is the Precession Radius of a Spinning Stick with Given Parameters?
- Raihan amin
- · Replies 3 ·
What is the Effect of the Number Operator on a Given Wavefunction?
- doggydan42
- · Replies 1 ·
Find the spinor-state for a given expectation value
- Markus Kahn
- · Replies 12 ·
How Does Radioactive Decay Affect Current in a Spherical Capacitor Circuit?
- HotFurnace
- · Replies 5 ·
The GZK Bound and Cosmic Rays: Calculating Photonic Energy in Outer Space
- spaghetti3451
- · Replies 6 ·
Solving a recursive equation of motion
- Robin04
- · Replies 16 ·
Specific proof of the Riemann tensor for FRW metric
- Chromatic_Universe
- · Replies 2 ·
Wire surrounded by a linear dielectric in a uniform E field
- physicsisfun0
- · Replies 1 ·
Is it possible to express friction force as a tensor?
- Digital_lassitude
- · Replies 2 ·
Moment of Inertia of an Ammonium Molecule
- Rafimah
- · Replies 3 ·
Plotting equipotentials from an infinite series solution
- Daniel Sellers
- · Replies 3 ·
Metal sphere in an electric field
- Clara Chung
- · Replies 2 ·
Energy Difference with a Two Delta Function Potential
- doggydan42
- · Replies 16 ·
Transmission and reflection coefficients in barrier region when E<V
- Another
- · Replies 1 ·
Pipe flow with precipitation at boundary
- Sizhe
- · Replies 1 ·
Discrepancy in Lagrangian to Hamiltonian transformation?
- JALAJ CHATURVEDI
- · Replies 1 ·
Lagrange equation of second kind - find solution's constant?
- labfiz3
- · Replies 1 ·
Casimir effect with Gaussian regulator
- Silviu
- · Replies 3 ·
How to Calculate Electric Potential in a Split Metal Pipe?
- physicsisfun0
- · Replies 1 ·
Feynman rules for ##\phi^3## theory
- CharlieCW
- · Replies 1 ·
Thermal Physics: Photon Statistics on Bose Particles
- Andrew Lewis
- · Replies 1 ·
2D isotropic quantum harmonic oscillator: polar coordinates
- CharlieCW
- · Replies 3 ·
Calculating Electric Displacement in Dielectric-Filled Capacitor Slabs
- BearY
- · Replies 1 ·
Problem 11.1 from Ashcroft and Mermin's textbook
- MathematicalPhysicist
- · Replies 2 ·
Expansion of the wave equation for a stationary wave
- John Greger
- · Replies 1 ·
How Do Spin Measurements Influence Particle States in Quantum Mechanics?
- WendysRules
- · Replies 5 ·
Canonical invariance vs. Lorentz invariance
- gasar8
- · Replies 2 ·
Expected Energy Value of a Time Independent Wave
- Send BoBs
- · Replies 2 ·
Deriving Ball Movement on Northern Hemisphere with Rotating Reference Frame
- physicschick21
- · Replies 8 ·
Simplifying the integral of |∂Ψ/∂x|²
- Erik 05
- · Replies 4 ·
How Do Three Spin-1/2 Particles Combine to Form States with Total Spin 3/2?
- BeyondBelief96
- · Replies 8 ·
Electron and hole concentration in silicon with donor doping
- bobred
- · Replies 6 ·
Calculation of Velocity and Shear rate in rectangular channel
- Arslan Siddique
- · Replies 3 ·
Bragg diffraction form an “inclined” crystal plane
- crick
- · Replies 1 ·
Lagrangian Mechanics with one constraint
- Natchanon
- · Replies 2 ·
Magnetic force between an unknown and known permanent magnet
- Sebastian_3835
- · Replies 1 ·
Sanity check: Using the Jones calculus for superposition
- boxfullofvacuumtubes
- · Replies 1 ·
Finding Stationary Wavefunction with a Line Potential
- doggydan42
- · Replies 9 ·
How to Calculate <A> Given the Eigenvalues?
- LiorSh
- · Replies 12 ·
Angular frequency of an ammonia molecule
- yamata1
- · Replies 1 ·
Self adjoint operators in spherical polar coordinates
- JALAJ CHATURVEDI
- · Replies 1 ·
How Do You Calculate the Electrostatic Energy of a Hollow Conducting Sphere?
- sal1234
- · Replies 5 ·
Gravitationally bound and Hubble time
- BearY
- · Replies 3 ·
Einstein Velocity Addition for a Moving Charge in a Wire
- CDL
- · Replies 1 ·
Finding the potential inside a semiconductor
- Christoffelsymbol100
- · Replies 1 ·
Problem finding the distribution of holes in a semiconductor
- diredragon
- · Replies 1 ·
Finding the Lagrangian Matrix for Two-Spring Systems
- MattIverson
- · Replies 1 ·
Electric field of "half" an infinite charged sheet
- BearY
- · Replies 1 ·
How Can You Decompose a 4x4 Unitary Matrix for a Quantum Circuit?
- CMJ96
- · Replies 4 ·
How Does Earth's Electron Density Affect Neutrino Oscillations?
- thinkLamp
- · Replies 19 ·
How to Prove the Commutator Relationship for Angular Momentum Operators?
- WendysRules
- · Replies 3 ·
Josephson oscillations second derivative calculation error
- CMJ96
- · Replies 8 ·
How to Differentiate a Scalar Potential?
- Safinaz
- · Replies 5 ·
Path of a deflected charge? Solvable ODE's?
- Kyle Nemeth
- · Replies 15 ·
Eigenfunction of momentum and operators
- Philip Land
- · Replies 14 ·
Showing That $\frac{d}{d_a} F_a(\hat{X}) \cdot \psi = F'(x) \psi$ at a=0
- John Greger
- · Replies 5 ·
Struggling with Rankine-Hugoniot Conditions?
- fabianprewett1
- · Replies 2 ·
Lagrangian Mechanics Question: A Yoyo radius a and b
- BiGubbs
- · Replies 1 ·
How is the horizon length related to the power law spectrum
- thinkLamp
- · Replies 1 ·
Adiabatic Reversible Compression of a Solid
- Dave Mata
- · Replies 16 ·
Electric Potential Distribution in a Vacuum Diode
- HotFurnace
- · Replies 5 ·
General Irreducible Representation of Lorentz Group
- CharlieCW
- · Replies 1 ·
Calculate the expectation value of V from Ehrenfest's theorem
- Faizan Samad
- · Replies 1 ·
The number of vibrational modes g(v)dv in Debye theory
- Sizhe
- · Replies 1 ·
Determine the Transition Wavelength
- Samuel Williams
- · Replies 4 ·
Verify that this kinetic energy operator is Hermitian
- sa1988
- · Replies 5 ·