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A high-energy photon creates a pi+ pi- pair. ?
- nonequilibrium
- · Replies 4 ·
Dilation generator in QM; Problem 3.1 in Ballentine
- GreyZephyr
- · Replies 4 ·
Closed form expression for the partition function Z using the Canonical Ensemble
- haitrungdo82
- · Replies 2 ·
Unraveling Weak Field Stark Effect in Hydrogen
- PHamnett
- · Replies 1 ·
What Does a Constant Number of Particles Mean for the Chemical Potential?
- astrozilla
- · Replies 2 ·
[particle physices] pair production not possible in absence of matter?
- nonequilibrium
- · Replies 4 ·
Electric Field at a Point on the Axis of a Charged Disk?
- smballer23
- · Replies 2 ·
Normalization constant of lineer combination of two waves?
- sylar88
- · Replies 9 ·
Potential Energy Density of Hanging String (Lagrangian)
- yngstr
- · Replies 7 ·
Bernoulli's Equation to find a depth
- awertag
- · Replies 2 ·
Why Does Tension Peak at Geostationary Height in a Space Elevator?
- Katie1990
- · Replies 2 ·
Efinition of the outer product tensor
- latentcorpse
- · Replies 17 ·
Does the Natural Length of the Spring Affect the Frequency of Oscillations?
- klawlor419
- · Replies 8 ·
Electric Potential Difference on a Cone
- grindfreak
- · Replies 1 ·
Physics-current electricity, circuit
- lydigihome
- · Replies 2 ·
Finding Force Exerted by Photons on a Sphere
- cupid.callin
- · Replies 2 ·
Nuclear Reaction Threshold Energy Calculation
- hhhmortal
- · Replies 9 ·
Electromagnetism: Questions About Energy Density
- Gavins
- · Replies 3 ·
How to deal with unusual factor-group?
- tuu-tikki
- · Replies 1 ·
Constructing an Analytic Mapping for SL(2;R) using Quadratic Forms
- r16
- · Replies 1 ·
Parity Transformation of Annihilation Operator
- orentago
- · Replies 1 ·
Calculating Resistance of a Steel Ball in Spherical Coordinates
- player1_1_1
- · Replies 1 ·
Question on charged spheres and shells
- Markv
- · Replies 1 ·
What Makes Equation 8.9 in Quantum Field Theory So Confusing?
- shadi_s10
- · Replies 5 ·
Problem deriving Einstein tensor form Bianchi identity
- jstrunk
- · Replies 6 ·
Contribution to the heat capacity of vibrational energy levels.
- lxazy
- · Replies 3 ·
Charge conjugation of Complex Klein Gordon Lagrangian
- orentago
- · Replies 3 ·
Electromagnetism: cylindrical or rectangular coordinates.
- Bromio
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Commutator of r.p with H=p²/2m+V(r)
- Trinitiet
- · Replies 3 ·
Express for Operator of coordinate in momentum representation
- Ed Quanta
- · Replies 18 ·
How Can Physics Explain the Phases of a Skydiver's Fall?
- sorra54
- · Replies 1 ·
Angular momentum powering operator L[-] - applying n times
- bjnartowt
- · Replies 1 ·
Calculate Killing Vectors in 3-D Euclidean Space
- BrunoSantos
- · Replies 1 ·
Quantum Question: Why k^2<0 in QFT?
- latentcorpse
- · Replies 33 ·
How does the map \Phi define an isomorphism between V and V**?
- latentcorpse
- · Replies 8 ·
Tensor Calculus General Theory of Relativity
- Sissy
- · Replies 5 ·
Can the Angular Dependence Be Ignored in the Hydrogen-Atom Radial Solution?
- aaaa202
- · Replies 4 ·
Understanding Resonant Frequencies: Investigating Modes in a Resonance Chamber
- Myrddin
- · Replies 3 ·
How to Find the Potential from a Surface Charge Density?
- quasar_4
- · Replies 3 ·
What Is Wrong with My Approach to Solving This Electrostatics Problem?
- quasar_4
- · Replies 2 ·
Quantum Mechanics - Angular Momentum
- Tangent87
- · Replies 13 ·
Using Separation of Variables to find potential inside of a sphere
- mdwerner
- · Replies 5 ·
Quantum Mechanics - Pauli Spin Matrices
- Tangent87
- · Replies 1 ·
Calculating Comutator of H and 1/r∙r
- jarvinen
- · Replies 14 ·
Time evolution of hydrogen wave function that is not an energy eigenfunction
- bier0134
- · Replies 11 ·
What Are Scattering States and Bound States in Quantum Mechanics?
- Phyisab****
- · Replies 4 ·
Why Is This Basis Non-Coordinate?
- desic
- · Replies 7 ·
Understanding Vector Theory Proofs: Solutions to Common Questions
- latentcorpse
- · Replies 2 ·
Thermodynamics: Carnot Engine, WHY IS Qhot NEGATIVE?
- Minari
- · Replies 2 ·
Induced Electric Field Lines When a Magnetic Field Crosses a Plane
- aim1732
- · Replies 29 ·
Solve for the motion of the particle x(t)
- lifeonfire
- · Replies 1 ·
What Constitutes Circular Motion in Classical Dynamics?
- Tangent87
- · Replies 3 ·
How Do Specific Heat and Thermal Conductivity Affect Temperature Ranking?
- sososo
- · Replies 16 ·
Solving Tensor Problem: Need Help Now!
- samson07
- · Replies 2 ·
State of a well determined position particle
- bluesunday
- · Replies 2 ·
Propagator for quantum linear potential
- Peeter
- · Replies 3 ·
Two Point Charge Force Calculation on Left Side
- patm95
- · Replies 2 ·
Expectation Values of x & p for Wavefunction u(x,0)
- Geocentric
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Charge Distribution on Spherical Conductors
- patm95
- · Replies 2 ·
Quantum State Evolution of a Free Particle at a Defined Position
- bluesunday
- · Replies 2 ·
3D pendulum-spring-damper (Lagrange)
- PhMichael
- · Replies 1 ·
Solution to Operators Problem Using the Operator Expansion Theorem
- y35dp
- · Replies 2 ·
How Does Light Travel from (-1,1) to (1,1) with Varying Refraction Index?
- lifeonfire
- · Replies 1 ·
Spherical gas chamber, change of pressure
- Jotun.uu
- · Replies 5 ·
Difficulty Finding the EigenX of an Operator
- Spurious J
- · Replies 1 ·
Force Homework: Mechanics Theorem - Find the Force in terms of Theta
- lifeonfire
- · Replies 3 ·
What is the formula for calculating Kmin of a nucleon and how can it be proven?
- Jason Gomez
- · Replies 2 ·
What Temperature Initiates Bose-Einstein Condensation in a Gravitational Field?
- qbslug
- · Replies 3 ·
How Does Stern-Gerlach Experiment Determine Proton Spin Orientation?
- ihatelolcats
- · Replies 6 ·
What state has min angle between angular momentum & z-axis
- accountkiller
- · Replies 3 ·
Hydrogen atom. state after L_z measurement
- Peeter
- · Replies 2 ·
Calculating Force and Stretch in a Helical Spring
- SarahFoley
- · Replies 1 ·
Finding the Normalization Constant for the Hydrogen Radial Wave Function
- Patroclus
- · Replies 1 ·
Determine the most probable radius for a 2s orbital (Hydrogen atom)
- science_1999
- · Replies 4 ·
Matter Waves: Phase vs Group Velocity Equation
- rg414
- · Replies 1 ·
Classical Mechanics MatLab problem (oribtal motion)
- Rhabdovirus
- · Replies 2 ·
A question about a derivation in QFT
- latentcorpse
- · Replies 1 ·
Deriving the Schwarzschild solution
- Deadstar
- · Replies 1 ·
What is the Speed of the CM Frame in Particle Decay?
- Katie1990
- · Replies 1 ·
Transmission through thin gold film
- G01
- · Replies 0 ·
Help Understanding Dirac Equation in Notes
- latentcorpse
- · Replies 1 ·
Differentiating a Hamiltonian - Is this a typo?
- latentcorpse
- · Replies 1 ·
Proving \{ \gamma^5 , \gamma^\mu \} = 0 to Gamma 5 Matrix Verification
- latentcorpse
- · Replies 7 ·
Normalizing Trial Function with 2 Normalization Factors
- timman_24
- · Replies 2 ·
Johnson and Shot Noise at 20*C with 9V Battery and 100Kohm Resistor
- Myrddin
- · Replies 2 ·
Electron & hole concentrations after doping silicon.
- Alex-012
- · Replies 1 ·
Symmetry of Cyclohexane: How Many Vibrations in Its Spectrum?
- unknownuser9
- · Replies 1 ·
Can a Vector Have an Expectation Value?
- phrygian
- · Replies 2 ·
Electron Scattering: Resolve Distance Scale Below 10^-15 m
- UnIssued
- · Replies 1 ·
Young's Double Slit with an Optical Flat over one slit
- truth is life
- · Replies 2 ·
What Is the Vibrational Energy-Level Spacing for H2?
- accountkiller
- · Replies 14 ·
Help Calculate Errors: Lambda & n Uncertainty on 'n2
- Owen-
- · Replies 2 ·
The single particle density of states (Statistical physics)
- SingBluSilver
- · Replies 1 ·
What is the role of parity in quantum mechanics?
- Chronos000
- · Replies 1 ·
The lorentz boost of the CM frame w/ respect to the lab frame
- nbd2010
- · Replies 1 ·
Find magnetic force on a squar loop
- leonne
- · Replies 2 ·
Maximum Work from Carnot Engine
- ts547
- · Replies 7 ·
Expectation Values of Spin Operators
- Rahmuss
- · Replies 4 ·
Spring system with oscillation: two different displacements
- awertag
- · Replies 7 ·
CM Momentum Equations: My Notes Reveal
- Chronos000
- · Replies 2 ·