John Preskill (@preskill) / X

John Preskill

6,063 posts

John Preskill

@preskill

Theoretical physicist @Caltech, Director of @IQIM_Caltech

Pasadena, California

Joined October 2010

John Preskill
@preskill
May 28, 2021
The audio recordings of the Feynman Lectures on Physics (1961-64) are now publicly available. Don't be discouraged by the quality of the recording of Lecture #1, which is damaged. The quality of the rest is pretty good. feynmanlectures.caltech.edu/flptapes.html
John Preskill
@preskill
Feb 23, 2021
My lectures from the first term of our quantum computing course @Caltech have been posted on YouTube. Slides for all lectures are also available.
youtube.com
Ph/CS 219A Quantum Computation
Lectures for the first term of a course on quantum computation taught at Caltech in Fall 2020. Slides for all the lectures are available at http://theory.cal...
John Preskill
@preskill
Aug 18, 2023
Congratulations, @RobertHuangHY, who defended his PhD thesis today. I've learned so much from you!
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John Preskill
@preskill
Mar 14, 2018
Stephen Hawking 1942-2018. A great physicist, of course, and also a great man who inspired millions. I'll remember the sharp wit and twinkling eyes; he never took himself too seriously. His friends will miss him terribly.
John Preskill
@preskill
Jul 24, 2021
Steven Weinberg 1933-2021. One of the most accomplished scientists of our age, and a particularly eloquent spokesperson for the scientific worldview. Steve remained intellectually active to the end. An immeasurable loss.
John Preskill
@preskill
May 24, 2022
Group photo for the 28th Solvay Conference on Physics: The Physics of Quantum Information.
John Preskill
@preskill
Feb 7, 2024
I'm excited and honored to receive the 2024 Bell Prize. cqiqc.physics.utoronto.ca/news/recent-ne…
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John Preskill
@preskill
Aug 16, 2016
#fav7equations
John Preskill
@preskill
Apr 14, 2021
Today is World Quantum Day. Let’s all try to be coherent. worldquantumday.org
John Preskill
@preskill
Oct 7, 2025
The pioneering work of Clarke, Devoret, and Martinis showed that very cold electrical circuits behave in ways that exhibit fundamental principles of quantum physics. Building on this achievement, Devoret, Martinis, and many others are constructing quantum computers, powerful
The Nobel Prize
@NobelPrize
Oct 7, 2025
BREAKING NEWS The Royal Swedish Academy of Sciences has decided to award the 2025 #NobelPrize in Physics to John Clarke, Michel H. Devoret and John M. Martinis “for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit.”
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John Preskill
@preskill
Dec 10, 2023
On everyone's Christmas wish list.
Charles Tahan
@tahantech
Dec 10, 2023
Even I can build a quantum computer.
55K
John Preskill
@preskill
Sep 9, 2021
Someone asked: What are the most important ideas in physics over the past 30 years? Three immediately came to mind: The holographic principle, topological order, quantum error correction. What's lovely is that these three ideas are so closely related.
John Preskill
@preskill
Oct 6, 2020
From her 1993 PhD Thesis @Caltech: "I dedicate this thesis to all the women scientists I have known." Andrea Ghez is a superb spokesperson for science --- no doubt she will be an inspiring role model to many future scientists.
The Nobel Prize
@NobelPrize
Oct 6, 2020
“I hope I can inspire other young women into the field. It’s a field that has so many pleasures, and if you are passionate about the science, there’s so much that can be done.” - Andrea Ghez speaking at today’s press conference where her #NobelPrize in Physics was announced.
John Preskill
@preskill
Jun 27, 2020
I have news. Starting now I will be an Amazon Scholar, working one day per week at the AWS Center for Quantum Computing in Pasadena. We have an outstanding team, and I’m very excited to join. I will also continue as a full-time professor @Caltech and Director of @IQIM_Caltech. /1