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Friedmann equation - show Big Bang happened given conditions
- binbagsss
- · Replies 1 ·
Decay Widths of Neutral Vector Mesons
- BOAS
- · Replies 6 ·
Does spin degeneracy double the Fermi-Dirac occupancy?
- davon806
- · Replies 5 ·
How Do You Convert a Density Operator to Matrix Form?
- PatsyTy
- · Replies 4 ·
Particle moving inside an inverted cone - Lagrangian
- bigguccisosa
- · Replies 4 ·
Isotropic material fitted by Ornstein-Zernike form
- alan
- · Replies 1 ·
What is the Perturbation in the Modified Coulomb Model of a Hydrogen Atom?
- Leechie
- · Replies 6 ·
Range in solid surface for liquid-liquid phase separation
- alan
- · Replies 1 ·
Temperature and volume fraction of a liquid mixture
- alan
- · Replies 1 ·
Alpha collision with unknown nucleus
- Purple Baron
- · Replies 15 ·
Finding general expression for probability current.
- David Silva
- · Replies 4 ·
Normal modes of coupled oscillators with double-well potential
- 1v1Dota2RightMeow
- · Replies 11 ·
Thermodynamics: Gradient of Adiabat in PV diagram
- nobosity
- · Replies 9 ·
Derive approximate expression by regular solution theory
- alan
- · Replies 1 ·
How to interpret the infinity of Hilbert Space?
- Archeon
- · Replies 1 ·
Average energy of a damped driven oscillator
- Bestphysics112
- · Replies 1 ·
QM: The time evolution of a Gaussian wave function
- DiracNotationKillsMe
- · Replies 5 ·
Charge density in an abrupt p-n junction
- lampCable
- · Replies 1 ·
Deriving Relations for Specific Heats and Susceptibilities of Magnets
- MathematicalPhysicist
- · Replies 1 ·
Using perturbation to calculate first order correction
- Leechie
- · Replies 2 ·
Calculate Comoving distance as a function of parameters
- QFT25
- · Replies 1 ·
Momentum and energy conservation in particle A decay in rest frame
- Alpha&Omega
- · Replies 1 ·
Calculating potential energy of hydrogen atom
- Leechie
- · Replies 4 ·
How Does the Metropolis Algorithm Calculate Specific Heat in a 2D XY Model?
- Firben
- · Replies 6 ·
Compatibility Thm HW: Can We Find More Orthon Eigenstates?
- davon806
- · Replies 1 ·
Antisymmetric wavefunctions for two fermions in a 1D box
- L52892
- · Replies 3 ·
Integrated track length in electromagnetic shower
- vbrasic
- · Replies 1 ·
Electromagnetic shower energy spectrum
- vbrasic
- · Replies 1 ·
Explanation for integration of Dr/Dt
- harmyder
- · Replies 1 ·
How do I use this equation? Estimating half-life of a decay
- llatosz
- · Replies 12 ·
Conserved quantities in the Korteweg-de Vries equation
- Emil_M
- · Replies 3 ·
Covariant derivative of a partial derivative ∇_c(∂_b X^a)
- MattRob
- · Replies 2 ·
Identical particles and separating the Schrodinger equation
- mangojuice14
- · Replies 6 ·
Why does a world line have negative slope for |v|<1 in spacetime diagrams?
- Lou Arnold
- · Replies 2 ·
Proving the relation between dT, dP, and dV using Maxwell relations
- B30W01F
- · Replies 1 ·
How Do You Determine if an Operator is Unitary, Hermitian, or a Projector?
- MrRobot
- · Replies 1 ·
Proving Minimization of Helmholtz Free Energy at Equilibrium
- Silviu
- · Replies 1 ·
Time-Dependent Perturbation of a 1D Infinite Square Well
- acdurbin953
- · Replies 2 ·
How Many Beams Are Hydrogen Atoms Deflected Into in a Magnetic Field?
- Silviu
- · Replies 12 ·
Finding the Group Velocity for Shallow Water Wave
- James Brady
- · Replies 2 ·
Triple delta potential probability of state transition
- OMG_Physics
- · Replies 2 ·
Linear perturbation to harmonic oscillator
- vbrasic
- · Replies 3 ·
Expressing surface charge density as volume charge density
- Mictlantecuhtli
- · Replies 5 ·
Find electric potential of field inside and outside nucleus
- vbrasic
- · Replies 3 ·
Anharmonic oscillator first-order correction to energy
- vbrasic
- · Replies 3 ·
Linear quadrupole potential and field calculations
- BREAD
- · Replies 1 ·
Center of mass energy in fixed target vs collider experiments
- vbrasic
- · Replies 1 ·
Problem Related to Beat Frequency of a hollow tube
- digitomega
- · Replies 7 ·
K X-Ray Production in PIXE: 2 MeV vs. 4 MeV
- Silviu
- · Replies 3 ·
Potential of dielectric cylinder with constant polarization
- eckerm
- · Replies 1 ·
Infinite square well doubled with time
- Bananen
- · Replies 5 ·
GRE question: oscilloscope with two oscillators
- Silviu
- · Replies 3 ·
Electric field due to charged plates moving through a plasma
- timelessmidgen
- · Replies 1 ·
Time Evolution After Sudden Potential Change
- BOAS
- · Replies 1 ·
Commutation relation using Levi-Civita symbol
- davon806
- · Replies 5 ·
How to work out thermal diffusivity using Angstrom's method?
- charlie mallet
- · Replies 12 ·
Analysing short period oscillations of an aircraft
- MattH150197
- · Replies 1 ·
Surface charge density from image charges on grounded conductor
- Silviu
- · Replies 2 ·
Given operator, show the Hamiltonian
- spacetimedude
- · Replies 12 ·
Finding the Energy of an Outgoing Particle in a Momentum Conservation Problem
- ChrisJ
- · Replies 2 ·
Changing magnetic field (magnetic mirror)
- Kara386
- · Replies 2 ·
Why are unperturbed states valid basis for perturbed system?
- bananabandana
- · Replies 4 ·
Magnetic field from charged particle velocity and spin
- hotram
- · Replies 1 ·
Potential difference and force for charged sphere near infinite sheet
- Silviu
- · Replies 1 ·
Potential around charged infinite cylinder in E field
- eckerm
- · Replies 3 ·
Timing Resolution Required In Particle Detector
- BOAS
- · Replies 1 ·
Energy fluctuations in canonical ensemble
- lampCable
- · Replies 5 ·
Calculate total energy surface tension
- member 428835
- · Replies 2 ·
Finding r(ϕ) from r(t) and ϕ(t) to plot Newtonian orbits
- Poirot
- · Replies 2 ·
Momentum Eigenstate with a non-zero potential
- QFT25
- · Replies 1 ·
Derivation of FD/BE-distribution using single-particle state
- lampCable
- · Replies 1 ·
Rewriting Central Force Problem of Black Hole Potential
- Digital Honeycomb
- · Replies 4 ·
Charge density for a given potential
- Silviu
- · Replies 3 ·
Partition function for harmonic oscillators
- Silviu
- · Replies 2 ·
Short-period oscillations in different flight conditions
- MattH150197
- · Replies 6 ·
Calculating pressure / energy difference confusion
- Farang
- · Replies 1 ·
Quantum Oscillator with different frequencies
- mgal95
- · Replies 2 ·
Thermal Conductivites between two dissimilar metals
- Lets Get Physical
- · Replies 1 ·
Difference in potential energy of two charge configurations
- theideasmith
- · Replies 2 ·
How Are Coefficients of Secular Equations in LCAO Evaluated?
- sams
- · Replies 4 ·
Hamiltonian conjugate dynamic variables
- thecourtholio
- · Replies 3 ·
Electron accelerated by electric field and gravity over 1.9 µm
- Rangers1994
- · Replies 1 ·
Probabilities or pressures in the Saha equation?
- lampCable
- · Replies 3 ·
Survival Probability of a free particle in time?
- Poirot
- · Replies 15 ·
Oscillation of a Charged Particle
- peroAlex
- · Replies 8 ·
Constructing the input state given the probabilities
- Figaro
- · Replies 13 ·
Drawing the quark flow diagram for proton-pion interaction
- vbrasic
- · Replies 3 ·
Decay of a particle of mass M into two particles
- Forco
- · Replies 1 ·
Neutral Pion Mass from Its Decay into Two Photons
- BOAS
- · Replies 6 ·
Calculating Clebsch-Gordan coefficients
- Kara386
- · Replies 20 ·
A Hamiltonian with a tensor product - a few basic questions
- Thomas Brady
- · Replies 1 ·
Using generating function to normalize wave function
- thecourtholio
- · Replies 11 ·
Lateral displacement of cheese block under shear stress from grater
- aeroengine123321
- · Replies 8 ·
Find the possible total energies (Quantum Physics)
- BookWei
- · Replies 7 ·
Minimum proton energy for pion photoproduction from CMB photons
- Arcturus7
- · Replies 1 ·
Can index swapping be applied to relativistic Lagrangian equations?
- bananabandana
- · Replies 1 ·
Power Series expansion of an eigenvalue
- ExplosivePete
- · Replies 3 ·
Fermi energy for two spin states equal in equilibrium?
- lampCable
- · Replies 1 ·
How to Solve Hydraulic Jump Problems with Conservation of Momentum and Mass?
- member 428835
- · Replies 9 ·
Diagonalize a coupled damped driven oscillator
- jamie.j1989
- · Replies 5 ·