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Runge-Lenz vector with perturbation potential
- breadlover98
- · Replies 1 ·
Finding Probability of Two-Identical-Particle System in a Given State
- Samama Fahim
- · Replies 16 ·
Calculate qubit states with Schrodinger's equation
- this_is_my_name
- · Replies 1 ·
How determine that a matrix is a tensor?
- GingFritz
- · Replies 19 ·
Comoving Distance in LCDM - Understanding an Approximation
- Arman777
- · Replies 1 ·
Why heat PDE solution does not fully satisfy initial conditions?
- ujo142
- · Replies 7 ·
Infinite square well centered at the origin
- Kaguro
- · Replies 39 ·
Donor and Acceptor Concentrations in a Si speciment
- lelouch_v1
- · Replies 1 ·
Total Josephson current through junction with magnetic field
- Mr_Allod
- · Replies 2 ·
Hund's Rule for Determining Term Symbol Energy Order
- Mr_Allod
- · Replies 2 ·
Ricci and Riemann tensors of FRW metric in spatial coordinates
- physicsuniverse02
- · Replies 2 ·
How do I normalize a wavefunction with Cn instead of Ci and Cj?
- SinaHp
- · Replies 6 ·
Lagrangian with a charged, massive vector boson coupled to electromagnetism
- jaded2112
- · Replies 1 ·
Finding magnetic field direction from perpendicular electric field component
- Dom Tesilbirth
- · Replies 1 ·
Need of Tangle calculation using code and Numerically
- Appu
- · Replies 1 ·
What is the Relationship Between Concurrence and Three Tangle in Quantum States?
- munirah
- · Replies 5 ·
State space controllers - find equations from differentials
- Maniac_XOX
- · Replies 12 ·
Hermiticity of AB where A and B are Hermitian operator?
- Haynes Kwon
- · Replies 11 ·
Calculate Earth's escape velocity using different methods
- Physicsdudee
- · Replies 8 ·
Spectral Intensity Formula by Using Frequency
- benagastov
- · Replies 5 ·
Landau Energy Spectrum in the non-relativistic limit
- desperate_student
- · Replies 1 ·
Solving Freidman Equation on MATLAB
- WoC1994
- · Replies 1 ·
A wheel rolls down a flat inclined surface
- alefisico
- · Replies 8 ·
Finding Total Number of Optical Field Modes for Visible Light
- freddie123
- · Replies 2 ·
Proof of Schrodinger equation solution persisting in time
- e4c6
- · Replies 5 ·
Quantum Harmonic Oscillator with Additional Potential
- Mr_Allod
- · Replies 1 ·
Spin matrix representation in any arbitrary direction
- PhysicsTruth
- · Replies 16 ·
Commutation relations between Ladder operators and Spherical Harmonics
- PhysicsTruth
- · Replies 6 ·
How Do Radial Oscillations Affect Star Stability?
- ergospherical
- · Replies 4 ·
What Are the Electric Field Components at a Charge Density Boundary?
- Sebas4
- · Replies 2 ·
Computing the infinitesimal generators for the Mobius transformation
- platypi
- · Replies 1 ·
Green's reciprocity theorem about current density and magnetic field
- SanaiBongchul
- · Replies 1 ·
How Are Wigner D Functions Related to Nuclear Rotor Model Wave Functions?
- patric44
- · Replies 2 ·
Coding of Spin Spin correlation function
- woodydewar
- · Replies 15 ·
How Can I Effectively Structure a 1500-Word Essay on Quantum Magnetism?
- GiuliettaL
- · Replies 6 ·
Show that ##B = \nabla \times A = 0## using Ampere-Maxwell law
- happyparticle
- · Replies 23 ·
Length of spin vector for spin-½ particle
- ghbeefcake
- · Replies 1 ·
Question regarding a decay spectrum graph
- dark_nebula
- · Replies 2 ·
Lagrangian of a double pendulum, finding kinetic energy
- P Felds
- · Replies 3 ·
Deriving the Solution to $$\frac{\partial}{\partial \phi^{*}}$$
- Irishdoug
- · Replies 2 ·
Diagonalizing q1ˆ3q2ˆ3 with Degenerate Perturbation Theory
- ThiagoSantos
- · Replies 1 ·
Why Do My T1 and T2 Values for Mineral Oil Show Significant Errors?
- Bryan278
- · Replies 1 ·
Expectation Values <E> and <E^2>
- a1234
- · Replies 6 ·
How Does the Nuclear Quadrupole Moment Explain Nucleus Deformation?
- patric44
- · Replies 6 ·
Commutator [x(∂/∂y), y(∂/∂x)] equals zero?
- Clifford Williams
- · Replies 16 ·
Renormalization Group:NiemeijerVan Leeuwen Method-Ising Square Lattice
- lapantufla
- · Replies 1 ·
How to tell if Energy is Conserved from the Lagrangian?
- penguin46
- · Replies 2 ·
Where do the (ix/a) and (-x^2/2a) terms come from in this wave function derivation?
- sus1234
- · Replies 4 ·
A question on the definition of the curl of a vector
- user1139
- · Replies 9 ·
Finding Lorentz acceleration transformation for arbitrary direction
- Cyneron
- · Replies 2 ·
Showing that the gradient of a scalar field is a covariant vector
- AndersF
- · Replies 5 ·
What would be the Wigner-Seitz cell of this lattice?
- pepediaz
- · Replies 1 ·
Cancellation of terms, Kittel (first edition) equation 6.4
- Irishdoug
- · Replies 5 ·
Calculating the half-life of decays of Radium-224
- Demon117
- · Replies 5 ·
MTW Ex 21.15 - Curvature independent of Lapse and Shift functions
- TerryW
- · Replies 1 ·
How is the Power Spectrum of Matter Density Field Defined?
- SherLOCKed
- · Replies 1 ·
How to find integrals of motion for a particle on a surface?
- penguin46
- · Replies 18 ·
Derivation of Boltzmann Factor via Reservoir Method (canonical ensemble)
- yucheng
- · Replies 4 ·
Scattered State Solutions of a Repulsive Dirac Delta Potential
- PhysicsTruth
- · Replies 1 ·
Finding all possible energy states faster without using a calculator
- benagastov
- · Replies 3 ·
When to use Laplace vs Poisson equation with surface charge density?
- yucheng
- · Replies 11 ·
How to prove ##V_{ai;j}=V_{aj;i}## in curved space using the given equation?
- user1139
- · Replies 3 ·
Fresnel diffraction from square: on axis intensity
- ergospherical
- · Replies 2 ·
Watt Rotational Speed Regulator's Lagrangian
- Hari Seldon
- · Replies 6 ·
Minimum grid length for two-stream instability in PIC code
- JD_PM
- · Replies 7 ·
Understanding Exponential Terms in Quantum Mechanics Problem
- NightHaWk
- · Replies 8 ·
Capacitance of infinitely long coaxial cylinders of elliptical section
- Rlwe
- · Replies 5 ·
Determinant of functional derivative operator in QFT
- paralleltransport
- · Replies 2 ·
Calculation of the Berry connection for a 2x2 Hamiltonian
- Silicon-Based
- · Replies 1 ·
Converting an expression of a particular k-mode to the spatial domain
- ian_dsouza
- · Replies 1 ·
What Is the Variational Method's Role in Determining Energy Expectation Values?
- Ashkan95
- · Replies 11 ·
Potential of a charged ring in terms of Legendre polynomials
- patric44
- · Replies 16 ·
What is the function to extremise for finding geodesics on a Helicoid?
- jayzhao
- · Replies 3 ·
Total Momentum Operator for Klein Gordon Field
- Samama Fahim
- · Replies 16 ·
Michelson Interferometer with a lens
- zefanya
- · Replies 1 ·
Fourier transform radial component of magnetic field
- Swordwhale
- · Replies 5 ·
Varying the trace term in a 3D sigma-model action
- user1139
- · Replies 1 ·
Diagonalizing of Hamiltonian of electron and positron system
- Davidllerenav
- · Replies 1 ·
Why must the second term on the right-hand side vanish in string theory?
- StenEdeback
- · Replies 3 ·
Understanding Powder Behavior under Centrifugal Force
- Asdr
- · Replies 6 ·
Statistical physics, using the ideas of Fermi Energies, etc. for a star
- Benlaww
- · Replies 1 ·
Dependence of the stress vector on surface orientation
- AndersF
- · Replies 4 ·
Discretizing a 1D quantum harmonic oscillator, finding eigenvalues
- JTFreitas
- · Replies 5 ·
Calculating Amplitude in Standard Model
- ultrapoci
- · Replies 1 ·
Perturbation Theory: Calculating 1st-Order Correction
- ooleonardoo
- · Replies 3 ·
Confirming the dimension of induced charge density of a dielectric
- patric44
- · Replies 2 ·
How does spin magnetization affect energy configurations in non-ideal systems?
- Marioweee
- · Replies 1 ·
Feynman rules and the tree level cross section of two scalar fields
- MT777
- · Replies 6 ·
Using Variational Principle to solve ground state energy
- 1missing
- · Replies 3 ·
Particle in a box: Finding <T> of an electron given a wave function
- Mayhem
- · Replies 9 ·
Finding exact plane wave solution from Einstein equation constraint
- user1139
- · Replies 1 ·
Schwarzchild metric - rescaled coordinates
- radiogaga35
- · Replies 1 ·
Vector calculus — Computing this Divergence
- jorgeluisharo
- · Replies 10 ·
Time dependent perturbation theory (Berry phase)
- dRic2
- · Replies 1 ·
Bethe formula dependence on charge of the material
- pepediaz
- · Replies 1 ·
Finding transition temperature of Landau ferroelectric
- baseballfan_ny
- · Replies 1 ·
Mass conservation in a sphere to find radial velocity of a flame
- Andrew1235
- · Replies 2 ·
Show that an expected value of a vacuum state is equal to 1
- mcas
- · Replies 2 ·
Delta function to calculate density of probablity
- anaisabel
- · Replies 9 ·
Bragg curve -> observing dependence on velocity
- pepediaz
- · Replies 7 ·