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 The Trifference Problem
 Greatest Hits 20152022, Part II
 Greatest Hits 20152022, Part I
 Tel Aviv University Theory Fest is Starting Tomorrow
 Alef’s Corner
 A Nice Example Related to the Frankl Conjecture
 Amazing: Justin Gilmer gave a constant lower bound for the unionclosed sets conjecture
 Barnabás Janzer: Rotation inside convex Kakeya sets
 Inaugural address at the Hungarian Academy of Science: The Quantum Computer – A Miracle or Mirage
Top Posts & Pages
 Amazing: Justin Gilmer gave a constant lower bound for the unionclosed sets conjecture
 Amazing: Jinyoung Park and Huy Tuan Pham settled the expectation threshold conjecture!
 Answer: Lord Kelvin, The Age of the Earth, and the Age of the Sun
 Quantum Computers: A Brief Assessment of Progress in the Past Decade
 A Nice Example Related to the Frankl Conjecture
 The Trifference Problem
 Aubrey de Grey: The chromatic number of the plane is at least 5
 Sarkaria's Proof of Tverberg's Theorem 1
 Amazing: Karim Adiprasito proved the gconjecture for spheres!
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Category Archives: Physics
Inaugural address at the Hungarian Academy of Science: The Quantum Computer – A Miracle or Mirage
(Picture: János Pach) The Quantum Computer – A Miracle or Mirage inaugural address of Gil Kalai honorary member of the MTA, Budapest, 15 June, 2022, 15:00 Abstract: On February 12, 2002, Michel Devoret’s lecture entitled “The Quantum Computers: Miracle or … Continue reading
Posted in Academics, Computer Science and Optimization, Physics, Quantum
Tagged Noisesensitivity, Noisestability, Quantum computers
3 Comments
The Google Supremacy Experiment: Data, Information, Discussions, and Three Questions.
Yosi Rinott, Tomer Shoham, and I wrote a manuscript regarding our study of the Google 2019 supremacy experiment. This is still a draft and comments or corrections are most welcome. (The paper already incorporates a few comments by the Google … Continue reading
Chaim EvenZohar, Tsviqa Lakrec, and Ran Tessler present: The Amplituhedron BCFW Triangulation
There is a recent breakthrough paper The Amplituhedron BCFW Triangulation by Chaim EvenZohar, Tsviqa Lakrec, and Ran Tessler Abstract: The amplituhedron is a geometric object, introduced by ArkaniHamed and Trnka (2013) in the study of scattering amplitudes in quantum … Continue reading
Posted in Combinatorics, Convex polytopes, Convexity, Physics
Tagged Amplituhedron, Chaim EvenZohar, Ran Tessler, Tsviqa Lakrec
1 Comment
Face to face talks and recorded videotaped introductions
Many face to face activities are now resuming. Last week I took part in a great conference on high dimensional expanders at the Simons Foundation, I recently gave real life talks with large audiences also in U. Chicago and Rutgers, … Continue reading
Posted in Combinatorics, Physics, Probability, Quantum, Updates
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To cheer you up in difficult times 23: the original handwritten slides of Terry Tao’s 2015 Einstein Lecture in Jerusalem
In 2015 Terry Tao gave the Einstein lecture of the Israeli Academy for Science and Humanities. We got hold of the original signed handwritten slides of Terry’s lecture and we are happy to share them with you. The title of … Continue reading
Posted in Analysis, Applied mathematics, Computer Science and Optimization, Physics, What is Mathematics
Tagged Terence Tao
1 Comment
Amazing: Feng Pan and Pan Zhang Announced a Way to “Spoof” (Classically Simulate) the Google’s Quantum Supremacy Circuit!
Feng Pan and Pan Zhang uploaded a new paper on the arXive “Simulating the Sycamore supremacy circuits.” with an amazing announcement. Abstract: We propose a general tensor network method for simulating quantum circuits. The method is massively more efficient in … Continue reading
Posted in Computer Science and Optimization, Physics, Quantum
Tagged Feng Pan, Pan Zhang, Quantum computation
10 Comments
The Argument Against Quantum Computers – A Very Short Introduction
Left: Gowers’s book Mathematics a very short introduction. Right C. elegans; Boson Sampling can be seen as the C. elegans of quantum computing. (See, this paper.) Update (January 6, 2021): Tomorrow January, 7, 8:30 AM Israel time, I give a … Continue reading
Posted in Combinatorics, Computer Science and Optimization, Physics, Probability, Quantum
Tagged Guy Kindler, quantum supremacy
12 Comments
Photonic Huge Quantum Advantage ???
This is a quick and preliminary post about a very recent announcement in a Science Magazine paper: Quantum computational advantage using photons by a group of researchers leaded by Jianwei Pan and ChaoYang Lu. (Most of the researchers are from … Continue reading
Posted in Combinatorics, Physics, Probability, Quantum
Tagged BosonSampling, quantum supremacy
13 Comments
To cheer you up in difficult times 11: Immortal Songs by Sabine Hossenfelder and by Tom Lehrer
Enjoy! To cheer you up in difficult times here are songs by Sabine Hossenfelder and by Tom Lehrer. I like the music and lyrics and the unusual combination of science, humor and satire. Sabine Hossenfelder : Outer space* Tom Lehrer: … Continue reading
Posted in Music, Physics, Poetry, What is Mathematics, Women in science
Tagged Sabine Hossenfelder, Tom Lehrer
3 Comments
Amazing: Zhengfeng Ji, Anand Natarajan, Thomas Vidick, John Wright, and Henry Yuen proved that MIP* = RE and thus disproved Connes 1976 Embedding Conjecture, and provided a negative answer to Tsirelson’s problem.
A few days ago an historic 160page paper with a very short title MIP*=RE was uploaded to the arXive by Zhengfeng Ji, Anand Natarajan, Thomas Vidick, John Wright, and Henry Yuen. I am thankful to Dorit Aharonov and Alon Rosen … Continue reading
Posted in Algebra, Analysis, Combinatorics, Computer Science and Optimization, Physics, Quantum
Tagged Anand Natarajan, Henry Yuen, John Wright, Thomas Vidick, Zhengfeng Ji
14 Comments