
This sticky is for announcements of pertinent scientific events, such as conferences, seminars, or public talks. This...

Y 11:17 AM
marcus

68 
66,492 
Before posting anything, please review the Physics Forums Global Guidelines.
If you are seeking help with a...

Jul1412 08:32 AM
ZapperZ

1 
26,569 
If there were only one rotating massive body and a detector in the universe, would the detector be able to detect that...

T 02:58 AM
MathematicalPhysicist

3 
137 
I just logged this on the biblio thread. This is in case there are questions, or things people want to discuss....

Y 08:51 PM
marcus

131 
24,786 
In the "perche i nostri discorsi" thread, selfAdjoint gave a concise sketch of the direction that Carlo Rovelli sees...

Y 07:51 PM
marcus

2,234 
548,777 
Common sense really. Space is full of CBR (not to mention other radiation and matter). They keep being fed. The...

Y 11:50 AM
marcus

6 
353 
I see there are new BH theories: "Planck stars" and "no Hawking radiation but a bounce in slow motion"
What's about...

Y 11:42 AM
marcus

1 
200 
In case anyone is interested in DQ I came across this, which is moderately accessible in parts....

Y 08:22 AM
kith

2 
222 
Is there a conncetion between Fritz john's ultrahyperbolic pde, which is the equation:
u_{tt}+u_{\tau \tau} =...

Y 01:59 AM
MathematicalPhysicist

1 
208 
While looking back at some gradings for exceptional Lie algebras, I rediscovered an old jewel of a paper...

Aug1914 09:51 PM
arivero

47 
9,389 
I remember reading some stuff online (it *seemed* legit) about how some physicists were getting finite answers to...

Aug1914 09:39 PM
atyy

2 
161 
Of the twenty candidates, indicate the ones you think will prove most significant for future Loopandallied QG...

Aug1914 08:21 PM
marcus

15 
5,326 
Why did Verlinde in his paper suggest that information is a central concept in the emergence of gravity? I mean why...

Aug1914 09:10 AM
tom.stoer

14 
3,830 
Hi,
While reading "Superspace: One Thousand and One Lessons in Supersymmetry" by Gates et al. I came across the...

Aug1914 08:11 AM
lpetrich

19 
1,015 
I'm watching a lecture by Edward Witten here: https://www.youtube.com/watch?v=Op8ZXIzlAwY
In it, he mentions that...

Aug1914 05:58 AM
tom.stoer

4 
338 
I've thought about this a lot and have tried to find the answer but have been unsuccessful. In the event of the big...

Aug1814 11:42 PM
porcupine137

7 
740 
I think Markopoulou and Oriti have been sniffing this out a long time. Note that Wen has heuristically linked tensor...

Aug1814 08:14 PM
marcus

211 
121,517 
Hi, I've been looking for a string theory review for a beginner graduate student. However, there is a vast number of...

Aug1814 07:26 AM
Demystifier

7 
354 
Hello,
Can anybody please explain me how magnetic monopoles, fine structure constant and string theory are related...

Aug1814 05:39 AM
shounakbhatta

4 
322 
Hello,
I want to have a basic understanding. When we speak 10 dimension in String Theory, do we mention:
(a) The...

Aug1814 01:18 AM
shounakbhatta

0 
185 
Hello,
How is it perceived the "Mathematical universe hypothesis" from Max Tegmark, in the scientific community ? ...

Aug1714 07:48 PM
MathematicalPhysicist

25 
770 
In its broadest sense, quantum entanglement means that two 'particles' separated by distance, and moving away from one...

Aug1714 07:38 PM
Greg Bernhardt

1 
199 
In a communication channel there is the timebandwidth product limiting the amount of information that can pass...

Aug1714 05:37 PM
atyy

8 
1,055 
Why is it such a big deal? According to the "modern" (Wilsonian) viewpoint, nonrenormalizability is not such a...

Aug1714 05:06 PM
UVCatastrophe

0 
128 
Please note that I neither hypothesize the existence of such particle, nor know any evidence of it. This is purely a...

Aug1514 07:44 PM
arivero

4 
311 
Hi all,
I wonder if I study new Higgs scalars, How the data of the LHC for searching for heavier scalars
in h>...

Aug1514 01:04 PM
ohwilleke

4 
474 
In the standard model, electric charge isn't fundamental, it's a combination of "hypercharge" and what could be called...

Aug1414 03:38 PM
ohwilleke

3 
884 
I found a few curious arxiv papers by Alexandre Deur (via Twitter).
Deur works in QCD. He explains QCD strings...

Aug1414 03:08 PM
ohwilleke

3 
1,065 
Hello,
why one can use a bidoublet scalar field (2,2) under SU(2)L x SU(2)R ? In terms of group theory, we should...

Aug1314 04:26 PM
samalkhaiat

3 
304 
I'm not sure if this thread would belong in the Academic Guidance forum, so if it does, feel free to move it there.
...

Aug1114 04:12 AM
Haelfix

2 
338 
I have recently visited CERN, and in the Globe they showed an equation from string theory.
My knowledge about it...

Aug1014 04:54 PM
arivero

1 
361 
Does quantum bounce provide a solution by which black holes could on some other side of the universe or in another...

Aug914 06:09 PM
jppmd

8 
410 
I am sorry if this sounds too philosophical but thanks for any inputs ..
String theory claims that every particle...

Aug614 12:32 PM
Korybut

2 
507 
Hi, if you remember back a decade ago we had a discussion on solutions to the first edition of Zwiebach's...

Aug514 11:16 PM
Greg Bernhardt

1 
2,054 
I know what a Weyl anomaly is. I see terms like "typeA" anomaly and "Dtype" anomalies in the literature. What does...

Aug514 11:16 PM
Greg Bernhardt

1 
562 
http://arxiv.org/abs/1402.2158
Big Bang, Blowup, and Modular Curves: Algebraic Geometry in Cosmology
Yuri I....

Aug514 11:16 PM
Greg Bernhardt

1 
380 
http://arxiv.org/abs/1408.0121
Thermally correlated states in Loop Quantum Gravity
Goffredo Chirco, Carlo Rovelli,...

Aug514 02:15 PM
marcus

4 
369 
http://pirsa.org/14070033/
Physical Hilbert space for the affine group formulation of 4D, gravity of Lorentzian...

Aug414 09:02 PM
marcus

7 
612 
http://arxiv.org/abs/1407.3384
Why do we remember the past and not the future? The 'time oriented coarse graining'...

Aug414 12:42 PM
atyy

31 
3,031 
http://arxiv.org/abs/1407.0989
White hole anyone?..^^
"...intense gravity creates a horizon, but it is not an...

Jul3114 09:44 AM
marcus

29 
4,198 
Seriously excellent talk given Monday 23 June at the Princeton Strings 2014 conference by Paul Steinhardt:...

Jul3014 06:41 PM
marcus

2 
602 
Video:
http://pirsa.org/14070019
Asymmetric Hawking Radiation: Baryogenesis from Hawking Radiation
Anson Hook...

Jul2914 09:37 PM
marcus

1 
365 