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Mar
26
comment Fine Tuned Universe
Thanks John for explaining and for the references. Now I'll get busy reading to gain more understanding of the issue.
Mar
26
accepted Fine Tuned Universe
Mar
26
asked Fine Tuned Universe
Nov
28
comment Pauli-Villars (PV) regularisation breaks supersymmetry. How to see that?
Thanks! So can I ask then, is the PV regulator enough to cancel divergences? If not, then why?
Nov
27
awarded  Supporter
Nov
26
comment Pauli-Villars (PV) regularisation breaks supersymmetry. How to see that?
Ok, thanks for your answer. The reason for the confusion is that I'm confused myself. I was following the PV scheme without knowing the physics behind it :/ But I think I'm getting a feeling of what the PV regulator does. Thanks again to you and to Zohar Ko whom I annoyed :p
Nov
26
comment Pauli-Villars (PV) regularisation breaks supersymmetry. How to see that?
No, I was asking about the PV regularisation. Maybe some time later I'll ask about DM. :p
Nov
26
accepted Pauli-Villars (PV) regularisation breaks supersymmetry. How to see that?
Nov
26
awarded  Teacher
Nov
26
comment Pauli-Villars (PV) regularisation breaks supersymmetry. How to see that?
I did similar calculation, as an exercise. I used PV and I got a similar result. But then, someone was saying something about PV regulator breaking susy and I was lost. :p Also, I didn't understand your answer.
Nov
26
comment Pauli-Villars (PV) regularisation breaks supersymmetry. How to see that?
Because I took the equation from there. Umm, Ok let's say: Does the Pauli-Villars regularisation break supersymmetry? And how to see that?
Nov
26
answered Are quarks and leptons actually fundamental particles?
Nov
26
asked Pauli-Villars (PV) regularisation breaks supersymmetry. How to see that?
Sep
23
asked What are the implications of superliminal neutrinos?
Sep
1
comment Ricci scalar for a diagonal metric tensor.
thank you very much for your clear and very helpful answer! I've been practicing your method on a simple case. And I'm really pleased. However, I noticed that if I am to get the correct result for $\Gamma$, I need to divide by the entry that corresponds to the upper index of $\Gamma$. For example, in your equation for $\Gamma^\mu_{\nu\sigma}$, I put $$...\frac{A^\prime}{2A}l^0_{11} ... -\frac{\dot{B}}{2A} l^0_{11}...$$ and I get correct results. Am I doing it right?
Aug
31
awarded  Scholar
Aug
31
accepted Ricci scalar for a diagonal metric tensor.
Aug
30
awarded  Student
Aug
30
asked Ricci scalar for a diagonal metric tensor.