Zero lagrangian and induced gravitation

by Sunfire
Tags: zero lagrangian
Sunfire is offline
Sep6-13, 12:50 PM
P: 177

Does anyone know what "induced gravity" is and where can one read (something not too technical) about it?

I am trying to understand how a system with zero Lagrangian has something to do with gravity.
Could someone explain perhaps?

Phys.Org News Partner Physics news on
A 'quantum leap' in encryption technology
Using antineutrinos to monitor nuclear reactors
Bake your own droplet lens
dextercioby is offline
Sep6-13, 01:06 PM
Sci Advisor
HW Helper
P: 11,866
0 Lagrangian ? You might mean 0 Hamiltonian, which is a constrained system.
Sunfire is offline
Sep6-13, 01:08 PM
P: 177
The text I read was brief... it only mentioned "zero Lagrangian (i.e. induced gravity)". I would have imagined this meant a system where T and V are equal. I am unsure what would be special in a such zero-lagrangian system. Then the action is zero too. One can't write the euler -lagrange equations either , because all terms are zero

or am I missing something?

Register to reply

Related Discussions
Gravitation Lagrangian in classical form Special & General Relativity 5
solenoid with an aluminum ring around it! (induced emf, induced current, mag. field?) Introductory Physics Homework 6
Induced magnetism or Induced e.m.f. Classical Physics 9
looking for Lagrangian Systems with Higher Order Time Derivatives in the Lagrangian Special & General Relativity 1
Lagrangian... anyone know their Lagrangian mechanics? Advanced Physics Homework 7