
#1
Sep613, 12:50 PM

P: 177

Hello,
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? Thanks 



#2
Sep613, 01:06 PM

Sci Advisor
HW Helper
P: 11,866

0 Lagrangian ? You might mean 0 Hamiltonian, which is a constrained system.




#3
Sep613, 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 zerolagrangian 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? 


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