Register to reply

Canonical and conjugate momentum

by igraviton
Tags: canonical, conjugate, momentum
Share this thread:
Apr10-11, 01:55 PM
P: 7
what is the difference between canonical and conjugate momentum.. ? what is its physical significant.. I was reading classical mechanics by Goldstein but could understood this terms
Phys.Org News Partner Physics news on
Optimum inertial self-propulsion design for snowman-like nanorobot
The Quantum Cheshire Cat: Can neutrons be located at a different place than their own spin?
A transistor-like amplifier for single photons
Apr11-11, 07:32 AM
Sci Advisor
Bill_K's Avatar
P: 4,160
Exactly the same thing. You might use the term conjugate momentum when you're referring to the canonical momentum which is conjugate to a particular coordinate.
Apr12-11, 12:46 AM
P: 7
Hi Bill_k,

Thanks for reply but what that means ? "conjugate to a particular coordinate"... physical intrepretation

Apr12-11, 01:03 AM
Sci Advisor
P: 5,366
Canonical and conjugate momentum

The canonical conjugate momentum p is derived via a derivative of the action w.r.t. the time derivative of a generalized coordinate q. Then {q,p}=1. The physical interpretation of p depends on the interpretation of q.

Register to reply

Related Discussions
Complex conjugate of the expectation value of momentum Advanced Physics Homework 1
Coordinate conjugate to momentum. Classical Physics 1
Conjugate momentum in the hamiltonian Quantum Physics 2
Canonical momentum in QM Quantum Physics 28
Angular momentum vs the Hamiltonian problem in the Dirac field theory (canonical) Quantum Physics 8