TheHatter
@crossedproduct.bsky.social
I am a PhD student in theoretical physics interested in quantum information aspects of spacetime
Reposted by TheHatter
Our website now includes talk recordings by group members and visitors!
For example, check out @crossproduct.bsky.social Lev's tutorial on von Neumann algebras from earlier this month, and a talk by DESY's Enrico Brehm on matrix model simulation from March.
www.physik.fu-berlin.de/en/einrichtu...
For example, check out @crossproduct.bsky.social Lev's tutorial on von Neumann algebras from earlier this month, and a talk by DESY's Enrico Brehm on matrix model simulation from March.
www.physik.fu-berlin.de/en/einrichtu...
Talks
www.physik.fu-berlin.de
April 30, 2025 at 12:59 PM
Our website now includes talk recordings by group members and visitors!
For example, check out @crossproduct.bsky.social Lev's tutorial on von Neumann algebras from earlier this month, and a talk by DESY's Enrico Brehm on matrix model simulation from March.
www.physik.fu-berlin.de/en/einrichtu...
For example, check out @crossproduct.bsky.social Lev's tutorial on von Neumann algebras from earlier this month, and a talk by DESY's Enrico Brehm on matrix model simulation from March.
www.physik.fu-berlin.de/en/einrichtu...
Reposted by TheHatter
Von Neumann algebras have had a recent comeback in holographic dualities: The type of a boundary (sub-)algebra reveals properties of their bulk dual.
In our new work, we show that limits of tensor network codes lead to very similar algebraic structures!
arxiv.org/abs/2504.00096
In our new work, we show that limits of tensor network codes lead to very similar algebraic structures!
arxiv.org/abs/2504.00096
On Infinite Tensor Networks, Complementary Recovery and Type II Factors
We initiate a study of local operator algebras at the boundary of infinite tensor networks, using the mathematical theory of inductive limits. In particular, we consider tensor networks in which each ...
arxiv.org
April 2, 2025 at 12:12 PM
Von Neumann algebras have had a recent comeback in holographic dualities: The type of a boundary (sub-)algebra reveals properties of their bulk dual.
In our new work, we show that limits of tensor network codes lead to very similar algebraic structures!
arxiv.org/abs/2504.00096
In our new work, we show that limits of tensor network codes lead to very similar algebraic structures!
arxiv.org/abs/2504.00096
Reposted by TheHatter
Ted Lasso is coming back for season 4
Ted Lasso is coming back for season 4
Believe.
buff.ly
March 14, 2025 at 2:30 PM
Ted Lasso is coming back for season 4
Reposted by TheHatter
The American Mathematical Society has also started a page to coordinate support for professional mathematics, so far focusing on executive orders impacting the National Science Foundation: www.ams.org/government/g...
AMS :: Take Action
www.ams.org
February 22, 2025 at 2:59 PM
The American Mathematical Society has also started a page to coordinate support for professional mathematics, so far focusing on executive orders impacting the National Science Foundation: www.ams.org/government/g...
Reposted by TheHatter
My friend @mathyadriana.bsky.social lost her job last week, and I want you to know the story:
buttondown.com/yarntheory/a...
buttondown.com/yarntheory/a...
on approaching hard problems
Friends, colleagues, and lovers of words, I usually use this space to talk about books, but today I want to tell you about my friend Adriana Salerno. Like...
buttondown.com
February 22, 2025 at 8:18 PM
My friend @mathyadriana.bsky.social lost her job last week, and I want you to know the story:
buttondown.com/yarntheory/a...
buttondown.com/yarntheory/a...
Reposted by TheHatter
This is a submission that is particularly close to my heart, having spent so much time with #entanglementtheory early in my career.
scirate.com/arxiv/2502.1...
If one accepts that all entanglement manipulation actually has to be #efficient, it is all different.
scirate.com/arxiv/2502.1...
If one accepts that all entanglement manipulation actually has to be #efficient, it is all different.
February 19, 2025 at 6:44 AM
This is a submission that is particularly close to my heart, having spent so much time with #entanglementtheory early in my career.
scirate.com/arxiv/2502.1...
If one accepts that all entanglement manipulation actually has to be #efficient, it is all different.
scirate.com/arxiv/2502.1...
If one accepts that all entanglement manipulation actually has to be #efficient, it is all different.
Reposted by TheHatter
I'm hiring a postdoc in quantum condensed matter theory! This will be a 3 year position, with a focus on developing and using novel numerical techniques to investigate open quantum systems.
For further info and to apply, see the following: elxw.fa.em3.oraclecloud.com/hcmUI/Candid...
For further info and to apply, see the following: elxw.fa.em3.oraclecloud.com/hcmUI/Candid...
Postdoctoral Research Associate
The Institute for Condensed Matter and Complex Systems is recruiting one Postdoctoral Research Associate to work with Dr Steven Thomson on the EPSRC funded project “Disorder in Open Quantum Systems”. ...
elxw.fa.em3.oraclecloud.com
February 17, 2025 at 5:20 PM
I'm hiring a postdoc in quantum condensed matter theory! This will be a 3 year position, with a focus on developing and using novel numerical techniques to investigate open quantum systems.
For further info and to apply, see the following: elxw.fa.em3.oraclecloud.com/hcmUI/Candid...
For further info and to apply, see the following: elxw.fa.em3.oraclecloud.com/hcmUI/Candid...
Reposted by TheHatter
Anyone have advice for helping students build intuition behind classical thermodynamics? Specifically thermodynamic potentials, conjugate vars and Legendre transformations, Maxwell relations, etc.
cc ⚛️ #iTeachPhysics
cc ⚛️ #iTeachPhysics
February 8, 2025 at 4:51 AM
Anyone have advice for helping students build intuition behind classical thermodynamics? Specifically thermodynamic potentials, conjugate vars and Legendre transformations, Maxwell relations, etc.
cc ⚛️ #iTeachPhysics
cc ⚛️ #iTeachPhysics
Things are going to be spoiled by those who are already rotting - Dali
January 30, 2025 at 9:13 PM
Things are going to be spoiled by those who are already rotting - Dali
Has there ever been a time when people have not had the courage to comment on every topic independent of their shallow understanding of it or has social media just opened the gates for us to see?
January 15, 2025 at 10:21 AM
Has there ever been a time when people have not had the courage to comment on every topic independent of their shallow understanding of it or has social media just opened the gates for us to see?
I am tired and bored, so I'll try this posting thing.
In my opinion, one of the deepest truths, which one unfortunately does not usually learn about in a physics curriculum, is the positivity of relative entropy. Although this is a rather abstract statement I want to try to explain it: 1/x
In my opinion, one of the deepest truths, which one unfortunately does not usually learn about in a physics curriculum, is the positivity of relative entropy. Although this is a rather abstract statement I want to try to explain it: 1/x
January 7, 2025 at 8:13 PM
I am tired and bored, so I'll try this posting thing.
In my opinion, one of the deepest truths, which one unfortunately does not usually learn about in a physics curriculum, is the positivity of relative entropy. Although this is a rather abstract statement I want to try to explain it: 1/x
In my opinion, one of the deepest truths, which one unfortunately does not usually learn about in a physics curriculum, is the positivity of relative entropy. Although this is a rather abstract statement I want to try to explain it: 1/x
Reposted by TheHatter
Reposted by TheHatter
Please share to spread the word: There is an opportunity for a PhD studentship on the postquantum theory of gravity, or experimental tests of the quantum nature of spacetime. Deadline for UK students is Jan 31, while internationals should email today. Details at www.ucl.ac.uk/oppenheim/it... ⚛️ 🧪
www.ucl.ac.uk
January 6, 2025 at 1:27 PM
Please share to spread the word: There is an opportunity for a PhD studentship on the postquantum theory of gravity, or experimental tests of the quantum nature of spacetime. Deadline for UK students is Jan 31, while internationals should email today. Details at www.ucl.ac.uk/oppenheim/it... ⚛️ 🧪
Reposted by TheHatter
Really nice, short ASCI history of physics (from Piet Hut, IAS)
From the babylonians to Aristoteles:
🧵 1/12
From the babylonians to Aristoteles:
🧵 1/12
January 2, 2025 at 3:29 PM
Really nice, short ASCI history of physics (from Piet Hut, IAS)
From the babylonians to Aristoteles:
🧵 1/12
From the babylonians to Aristoteles:
🧵 1/12
Reposted by TheHatter
London can be amazing for wildlife. Here are Fifi and Foufou - the 2 foxes who regularly visit my tiny London garden, in a busy area, close to a major road...
In the decades I lived in rural Southern England I seldom saw foxes. Here it's daily, many of them!
In the decades I lived in rural Southern England I seldom saw foxes. Here it's daily, many of them!
December 24, 2024 at 10:39 PM
London can be amazing for wildlife. Here are Fifi and Foufou - the 2 foxes who regularly visit my tiny London garden, in a busy area, close to a major road...
In the decades I lived in rural Southern England I seldom saw foxes. Here it's daily, many of them!
In the decades I lived in rural Southern England I seldom saw foxes. Here it's daily, many of them!
Interviewer: Can you explain this gap in your resume?
Holographer: I wanted a semiclassical bulk dual
Holographer: I wanted a semiclassical bulk dual
Interviewer: Can you explain this gap in your resume?
Conformal field theorist: Unitarity bound.
⚛️
Conformal field theorist: Unitarity bound.
⚛️
Interviewer: Can you explain this gap in your resume?
Condensed matter physicist: Cooper pairing.
⚛️
Condensed matter physicist: Cooper pairing.
⚛️
December 24, 2024 at 9:54 AM
Interviewer: Can you explain this gap in your resume?
Holographer: I wanted a semiclassical bulk dual
Holographer: I wanted a semiclassical bulk dual