Pinned
Raghav G. Jha
@rgjha.bsky.social
· Nov 22
Happy to announce that our paper on real-time scattering in Ising field theory using tensor networks is now on arXiv.
Great working and learning with Ashley Milsted, Dominik Neuenfeld, John Preskill (@preskill.bsky.social), and Pedro Vieira. We had great fun!
arxiv.org/abs/2411.13645
Great working and learning with Ashley Milsted, Dominik Neuenfeld, John Preskill (@preskill.bsky.social), and Pedro Vieira. We had great fun!
arxiv.org/abs/2411.13645
Great loss.
My first paper was based on the work he did in 1993 showing that black strings and branes are unstable [Gregory–Laflamme instability]
Now, having moved to quantum computing, his work is even more relevant especially KLM protocol and Knill-Laflamme QEC conditions.
My first paper was based on the work he did in 1993 showing that black strings and branes are unstable [Gregory–Laflamme instability]
Now, having moved to quantum computing, his work is even more relevant especially KLM protocol and Knill-Laflamme QEC conditions.
Raymond Laflamme 1960-2025. A great scientist, renowned for his pioneering contributions to quantum error correction. A great leader, founding director of the Institute for Quantum Computing. A great colleague and teacher whose legacy continues to inspire us.
uwaterloo.ca/institute-fo...
uwaterloo.ca/institute-fo...
IQC and Waterloo mourn the loss of Raymond Laflamme | Institute for Quantum Computing | University of Waterloo
Raymond Laflamme, a trailblazer in quantum information processing and pioneer of the Institute for Quantum Computing (IQC) at the University of Waterloo, died on June 19 after a lengthy battle with ca...
uwaterloo.ca
June 23, 2025 at 4:57 PM
Great loss.
My first paper was based on the work he did in 1993 showing that black strings and branes are unstable [Gregory–Laflamme instability]
Now, having moved to quantum computing, his work is even more relevant especially KLM protocol and Knill-Laflamme QEC conditions.
My first paper was based on the work he did in 1993 showing that black strings and branes are unstable [Gregory–Laflamme instability]
Now, having moved to quantum computing, his work is even more relevant especially KLM protocol and Knill-Laflamme QEC conditions.
Fascinating article by Feynman (1987). He discusses three issues in the article: 1) sensitivity, 2) extensivity, and 3) computability.
March 31, 2025 at 7:08 AM
Fascinating article by Feynman (1987). He discusses three issues in the article: 1) sensitivity, 2) extensivity, and 3) computability.
In 1956, it was found for the first time that there are fundamental interactions in nature (weak interactions) that violate parity symmetry (left and right are not alike). Curiously enough, it was only today that I found out that Dirac had this sentence in his July 1949 RMP article.
March 26, 2025 at 1:46 AM
In 1956, it was found for the first time that there are fundamental interactions in nature (weak interactions) that violate parity symmetry (left and right are not alike). Curiously enough, it was only today that I found out that Dirac had this sentence in his July 1949 RMP article.
March 18, 2025 at 5:33 AM
At the #APS today.
8pm tomorrow at the APS Global Physics Summit we'll have a session on "Quantum Future - The Promise, the Hype, the Opportunity" -- 6 speakers and a panel. Should be interesting. Speakers: Tony Leggett, Megan Ivory, Krysta Svore, Wojciech Zurek, Emily Edwards, and me.
summit.aps.org/events/MAR-E...
summit.aps.org/events/MAR-E...
Quantum Future - The Promise, the Hype, the Opportunity
8:00 pm – 10:00 pm, Monday March 17, Session MAR-EV40, Anaheim Convention Center, 154 (Level 1)
summit.aps.org
March 18, 2025 at 12:29 AM
At the #APS today.
Wishing everyone a very happy and prosperous new year 2025 🎉
Facts about 2025:
1) It is square of 45
2) It is product of two squares: 9² x 5² = 2025
3) It is the sum of three squares: 40²+ 20²+5²= 2025
4) It is the sum of cubes of natural numbers from 1 to 9: 1³+2³+3³+4³+5³+6³+7³+8³+9³= 2025
Facts about 2025:
1) It is square of 45
2) It is product of two squares: 9² x 5² = 2025
3) It is the sum of three squares: 40²+ 20²+5²= 2025
4) It is the sum of cubes of natural numbers from 1 to 9: 1³+2³+3³+4³+5³+6³+7³+8³+9³= 2025
December 28, 2024 at 3:32 AM
Wishing everyone a very happy and prosperous new year 2025 🎉
Facts about 2025:
1) It is square of 45
2) It is product of two squares: 9² x 5² = 2025
3) It is the sum of three squares: 40²+ 20²+5²= 2025
4) It is the sum of cubes of natural numbers from 1 to 9: 1³+2³+3³+4³+5³+6³+7³+8³+9³= 2025
Facts about 2025:
1) It is square of 45
2) It is product of two squares: 9² x 5² = 2025
3) It is the sum of three squares: 40²+ 20²+5²= 2025
4) It is the sum of cubes of natural numbers from 1 to 9: 1³+2³+3³+4³+5³+6³+7³+8³+9³= 2025
First page of the book - "Notes on quantum mechanics" by E. Fermi published by Chicago U Press.
Thanks to @thriftbooks.bsky.social for a great deal :-)
Thanks to @thriftbooks.bsky.social for a great deal :-)
December 21, 2024 at 4:16 AM
First page of the book - "Notes on quantum mechanics" by E. Fermi published by Chicago U Press.
Thanks to @thriftbooks.bsky.social for a great deal :-)
Thanks to @thriftbooks.bsky.social for a great deal :-)
100 years ago, in November 1924, de Broglie became the first physicist to deduce that all matter has wave properties. A year later, in 1925, he developed the first hidden-variable theory (pilot-wave theory), which inspired Schrodinger to write down his famous equation. This theory eventually
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December 14, 2024 at 12:07 AM
100 years ago, in November 1924, de Broglie became the first physicist to deduce that all matter has wave properties. A year later, in 1925, he developed the first hidden-variable theory (pilot-wave theory), which inspired Schrodinger to write down his famous equation. This theory eventually
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Reposted by Raghav G. Jha
I am very proud of our new paper on simulations of scattering processes in (1+1)-dimensional quantum field theory. All the hard work was done by my co-authors Raghav Jha, Ash Milsted, Dominik Neuenfeld, and Pedro Vieira.
arxiv.org/abs/2411.13645
arxiv.org/abs/2411.13645
Real-Time Scattering in Ising Field Theory using Matrix Product States
We study scattering in Ising Field Theory (IFT) using matrix product states and the time-dependent variational principle. IFT is a one-parameter family of strongly coupled non-integrable quantum field...
arxiv.org
November 22, 2024 at 9:33 PM
I am very proud of our new paper on simulations of scattering processes in (1+1)-dimensional quantum field theory. All the hard work was done by my co-authors Raghav Jha, Ash Milsted, Dominik Neuenfeld, and Pedro Vieira.
arxiv.org/abs/2411.13645
arxiv.org/abs/2411.13645
Happy to announce that our paper on real-time scattering in Ising field theory using tensor networks is now on arXiv.
Great working and learning with Ashley Milsted, Dominik Neuenfeld, John Preskill (@preskill.bsky.social), and Pedro Vieira. We had great fun!
arxiv.org/abs/2411.13645
Great working and learning with Ashley Milsted, Dominik Neuenfeld, John Preskill (@preskill.bsky.social), and Pedro Vieira. We had great fun!
arxiv.org/abs/2411.13645
November 22, 2024 at 3:40 AM
Happy to announce that our paper on real-time scattering in Ising field theory using tensor networks is now on arXiv.
Great working and learning with Ashley Milsted, Dominik Neuenfeld, John Preskill (@preskill.bsky.social), and Pedro Vieira. We had great fun!
arxiv.org/abs/2411.13645
Great working and learning with Ashley Milsted, Dominik Neuenfeld, John Preskill (@preskill.bsky.social), and Pedro Vieira. We had great fun!
arxiv.org/abs/2411.13645