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bio website gilkalai.wordpress.com
location Jerusalem, Israel
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visits member for 4 years, 4 months
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Professor of Mathematics at the Hebrew University of Jerusalem and at Yale University


Feb
12
revised QCD and QED with unlimited computational power - how precise are they going to be?
edited title
Jan
6
awarded  Nice Question
Jan
6
revised The fine structure constant - can it genuinely be a random variable?
added 112 characters in body
Dec
30
comment QCD and QED with unlimited computational power - how precise are they going to be?
Dear Count Iblis, many thanks for your helpful answer.
Dec
26
awarded  Yearling
Dec
26
revised QCD and QED with unlimited computational power - how precise are they going to be?
edited body
Dec
26
comment The fine structure constant - can it genuinely be a random variable?
Dear Mitchell, thanks for the answer! Certainly having constants as VEV is very close to what I ask about. Re (1) or how to use an entire distribution rather its expected value in a computation, this is precisely what I am curious about. So in cases where quantities in one theory indeed correspond to VEV of a new field, are there known ways to base computations in that theory on the entire distribution rather only on the expectation? Are there ways to empirically distinguish if a quantity is an absolute constant or a VEV?
Dec
26
comment The fine structure constant - can it genuinely be a random variable?
Curious one, since we can only compute the constant up to some precision unless we study some theoretical consequences/connections related to a (hypothetical) possibility that they are not constant our observations cannot tell the difference.
Dec
26
awarded  Curious
Dec
25
comment The fine structure constant - can it genuinely be a random variable?
Dear CuriosOne, my question is not if these constants have changed in the known universe, the question takes for granted that they do not change for time or location. The question is if these constants are genuinely "stochastic objects".
Dec
25
comment QCD and QED with unlimited computational power - how precise are they going to be?
Curiousone, yes this is my question 2. Can we estimate quantitatively what "at some point" stands for.
Dec
25
revised QCD and QED with unlimited computational power - how precise are they going to be?
added 181 characters in body
Dec
25
comment QCD and QED with unlimited computational power - how precise are they going to be?
Sorry Vladimir, actually I also wanted to ask about that - I will correct. I will update the question.
Dec
25
asked The fine structure constant - can it genuinely be a random variable?
Dec
25
asked QCD and QED with unlimited computational power - how precise are they going to be?
Dec
25
awarded  Autobiographer
Nov
27
awarded  Favorite Question
Nov
5
awarded  Popular Question
Nov
5
awarded  Notable Question
Aug
17
awarded  Popular Question