Felix Leditzky 🏳️🌈🏳️⚧️
@felixled.bsky.social
Assistant Professor at University of Illinois Math | Quantum information theorist | In a superposition of Central Illinois and St Louis | Vienna native | (he/him)
Just ordered a copy to pick up in my local book store,* been meaning to read this for a while now! 🤗
For example you could give my first book to everyone you know, no need to worry about coming up with gift ideas anymore
Available in hardcover, paperback, audiobook, and ebook 🥹
www.boldtypebooks.com/titles/chand...
Available in hardcover, paperback, audiobook, and ebook 🥹
www.boldtypebooks.com/titles/chand...
The Disordered Cosmos
www.boldtypebooks.com
November 26, 2025 at 2:18 AM
Just ordered a copy to pick up in my local book store,* been meaning to read this for a while now! 🤗
shut up and purify
arxiv.org/abs/2511.15806
arxiv.org/abs/2511.15806
Mixed state tomography reduces to pure state tomography
A longstanding belief in quantum tomography is that estimating a mixed state is far harder than estimating a pure state. This is borne out in the mathematics, where mixed state algorithms have always ...
arxiv.org
November 22, 2025 at 2:37 PM
shut up and purify
arxiv.org/abs/2511.15806
arxiv.org/abs/2511.15806
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
To be clear (it is the internet, after all) there are plenty of truly wonderful, non-sociopathic people in positions of influence within academia. I just think we are too forgiving of the bad people.
November 17, 2025 at 10:06 PM
To be clear (it is the internet, after all) there are plenty of truly wonderful, non-sociopathic people in positions of influence within academia. I just think we are too forgiving of the bad people.
The list of accepted papers for #QIP2026 is now online at qip2026.lu.lv/programme/ac...
Accepted papers
qip2026.lu.lv
November 11, 2025 at 1:28 PM
The list of accepted papers for #QIP2026 is now online at qip2026.lu.lv/programme/ac...
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
Never forget.
November 8, 2025 at 9:55 PM
Never forget.
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
If you are interested in doing a postdoc with me, please apply to the IQC postdoctoral fellowship here: iqc-uwaterloo.slideroom.com#/login/progr...
University of Waterloo
Attn: Institute for Quantum Computing - SlideRoom
Apply to University of Waterloo
Attn: Institute for Quantum Computing. Powered by SlideRoom.
iqc-uwaterloo.slideroom.com
November 6, 2025 at 7:12 PM
If you are interested in doing a postdoc with me, please apply to the IQC postdoctoral fellowship here: iqc-uwaterloo.slideroom.com#/login/progr...
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
I love quantum computing (& quantum information science, even more), don't get me wrong --
but we have to acknowledge how much of the so-called "ecosystem" this captures:
but we have to acknowledge how much of the so-called "ecosystem" this captures:
November 5, 2025 at 1:11 PM
I love quantum computing (& quantum information science, even more), don't get me wrong --
but we have to acknowledge how much of the so-called "ecosystem" this captures:
but we have to acknowledge how much of the so-called "ecosystem" this captures:
Department of Physics at UIUC is looking for an Assistant Professor in Theoretical Quantum Information Science, including, but not limited to, quantum error correction, quantum optics, quantum algorithms, and AMO physics.
Application deadline: Dec 1
illinois.csod.com/ux/ats/caree...
Application deadline: Dec 1
illinois.csod.com/ux/ats/caree...
Grainger Engineering: Assistant Professor in Theoretical QIS - Department of Physics
Duties & Responsibilities
illinois.csod.com
November 5, 2025 at 1:14 PM
Department of Physics at UIUC is looking for an Assistant Professor in Theoretical Quantum Information Science, including, but not limited to, quantum error correction, quantum optics, quantum algorithms, and AMO physics.
Application deadline: Dec 1
illinois.csod.com/ux/ats/caree...
Application deadline: Dec 1
illinois.csod.com/ux/ats/caree...
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
Tenure track position in Dept C&O, U Waterloo, with continuous optimization as priority area!
www.mathjobs.org/jobs/lists/2...
www.mathjobs.org/jobs/lists/2...
MathJobs from the the American Mathematical Society
Mathjobs is an automated job application system sponsored by the AMS.
www.mathjobs.org
October 30, 2025 at 9:03 PM
Tenure track position in Dept C&O, U Waterloo, with continuous optimization as priority area!
www.mathjobs.org/jobs/lists/2...
www.mathjobs.org/jobs/lists/2...
Did NSF really just change their URL scheme from www.nsf.gov/awardsearch/... to www.nsf.gov/awardsearch/... 🫥
October 28, 2025 at 9:37 PM
Did NSF really just change their URL scheme from www.nsf.gov/awardsearch/... to www.nsf.gov/awardsearch/... 🫥
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
We're hiring postdocs! Deadline is 15 Nov.
We're also advertising Leinweber postdoctoral fellowships, which also have an earlier nomination deadline of 1 Nov.
academicjobsonline.org/ajo/MIT/CTP-LI
We're also advertising Leinweber postdoctoral fellowships, which also have an earlier nomination deadline of 1 Nov.
academicjobsonline.org/ajo/MIT/CTP-LI
Massachusetts Institute of Technology, The MIT Center for Theoretical Physics - a Leinweber Institute
Full service online faculty recruitment and application management system for academic institutions worldwide. We offer unique solutions tailored for academic communities.
academicjobsonline.org
October 23, 2025 at 1:22 PM
We're hiring postdocs! Deadline is 15 Nov.
We're also advertising Leinweber postdoctoral fellowships, which also have an earlier nomination deadline of 1 Nov.
academicjobsonline.org/ajo/MIT/CTP-LI
We're also advertising Leinweber postdoctoral fellowships, which also have an earlier nomination deadline of 1 Nov.
academicjobsonline.org/ajo/MIT/CTP-LI
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
Our group is looking to hire postdocs to work at the intersection of quantum computing, quantum algorithms, quantum machine learning, simulation of many-body quantum systems and early-fault tolerant quantum computing
Apply here:
lanl.jobs/search/jobde...
Reposts appreciated!
Apply here:
lanl.jobs/search/jobde...
Reposts appreciated!
Quantum Computing and Early Fault-Tolerant Simulations at Los Alamos National Laboratory
Los Alamos National Laboratory is Hiring! Search available jobs or submit your resume now by visiting this link. Please share with anyone you feel would be a great fit.
lanl.jobs
October 22, 2025 at 10:22 PM
Our group is looking to hire postdocs to work at the intersection of quantum computing, quantum algorithms, quantum machine learning, simulation of many-body quantum systems and early-fault tolerant quantum computing
Apply here:
lanl.jobs/search/jobde...
Reposts appreciated!
Apply here:
lanl.jobs/search/jobde...
Reposts appreciated!
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
I’m looking for postdocs and PhD students to join my group at Cambridge!
Topics include: Classical & Quantum Complexity, Sublinear Algorithms, Coding Theory, Cryptography, Learning Theory, and their interplay with Fourier Analysis & Additive Combinatorics.
To apply or inquire, email me your CV.
Topics include: Classical & Quantum Complexity, Sublinear Algorithms, Coding Theory, Cryptography, Learning Theory, and their interplay with Fourier Analysis & Additive Combinatorics.
To apply or inquire, email me your CV.
October 20, 2025 at 8:15 PM
I’m looking for postdocs and PhD students to join my group at Cambridge!
Topics include: Classical & Quantum Complexity, Sublinear Algorithms, Coding Theory, Cryptography, Learning Theory, and their interplay with Fourier Analysis & Additive Combinatorics.
To apply or inquire, email me your CV.
Topics include: Classical & Quantum Complexity, Sublinear Algorithms, Coding Theory, Cryptography, Learning Theory, and their interplay with Fourier Analysis & Additive Combinatorics.
To apply or inquire, email me your CV.
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
(I/III) We're excited to announce a new tenure track opening! The position is called 'quantum informatics' and is affiliated with our QUICK group within the CS+AI division at @jku.at 🇦🇹. Application deadline is November 30th, 2025: www.jku.at/en/the-jku/w...
October 21, 2025 at 1:47 PM
(I/III) We're excited to announce a new tenure track opening! The position is called 'quantum informatics' and is affiliated with our QUICK group within the CS+AI division at @jku.at 🇦🇹. Application deadline is November 30th, 2025: www.jku.at/en/the-jku/w...
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
Alex is gonna give a talk on the @unitary.foundation discord next wednesday (Oct 22) on formalizing QI in lean 👀
Are you ready to raise the bar for QIP next year? Shall we set the new acceptance standards to
1. paper on the arXiv,
2. Lean proof on GitHub?
arxiv.org/abs/2510.08672
1. paper on the arXiv,
2. Lean proof on GitHub?
arxiv.org/abs/2510.08672
A Formalization of the Generalized Quantum Stein's Lemma in Lean
The Generalized Quantum Stein's Lemma is a theorem in quantum hypothesis testing that provides an operational meaning to the relative entropy within the context of quantum resource theories. Its origi...
arxiv.org
October 16, 2025 at 1:23 AM
Alex is gonna give a talk on the @unitary.foundation discord next wednesday (Oct 22) on formalizing QI in lean 👀
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
Me: “Why do you think ‘Succession’ was such a big show?
Arian Moayed/'Stewy': "Because the truth of ‘Succession’ dials into what we’re witnessing every day in our news cycles. There’s an elite group of 10 to 15 people that run everything."
Watch the full interview: zeteo.com/p/succession...
Arian Moayed/'Stewy': "Because the truth of ‘Succession’ dials into what we’re witnessing every day in our news cycles. There’s an elite group of 10 to 15 people that run everything."
Watch the full interview: zeteo.com/p/succession...
October 14, 2025 at 7:06 PM
Me: “Why do you think ‘Succession’ was such a big show?
Arian Moayed/'Stewy': "Because the truth of ‘Succession’ dials into what we’re witnessing every day in our news cycles. There’s an elite group of 10 to 15 people that run everything."
Watch the full interview: zeteo.com/p/succession...
Arian Moayed/'Stewy': "Because the truth of ‘Succession’ dials into what we’re witnessing every day in our news cycles. There’s an elite group of 10 to 15 people that run everything."
Watch the full interview: zeteo.com/p/succession...
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
Good/Neutral/Evil Milk Yankee/Hotel/Foxtrot
October 11, 2025 at 1:12 AM
Good/Neutral/Evil Milk Yankee/Hotel/Foxtrot
Apply for a JL Doob Research Assistant Professorship (3-year postdoc position that includes teaching) in the Math department at University of Illinois Urbana-Champaign: www.mathjobs.org/jobs/list/27...
Application deadline: December 1
Application deadline: December 1
MathJobs from the the American Mathematical Society
Mathjobs is an automated job application system sponsored by the AMS.
www.mathjobs.org
October 6, 2025 at 10:07 PM
Apply for a JL Doob Research Assistant Professorship (3-year postdoc position that includes teaching) in the Math department at University of Illinois Urbana-Champaign: www.mathjobs.org/jobs/list/27...
Application deadline: December 1
Application deadline: December 1
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
📢Several PhD and Postdoc positions in my group (focusing on AI for Scientific Discovery in Physics) at @unituebingen.bsky.social
If you are excited about using AI to design new ways for observing the universe, please apply here: uni-tuebingen.de/en/128980#c2...
If you are excited about using AI to design new ways for observing the universe, please apply here: uni-tuebingen.de/en/128980#c2...
October 1, 2025 at 11:43 PM
📢Several PhD and Postdoc positions in my group (focusing on AI for Scientific Discovery in Physics) at @unituebingen.bsky.social
If you are excited about using AI to design new ways for observing the universe, please apply here: uni-tuebingen.de/en/128980#c2...
If you are excited about using AI to design new ways for observing the universe, please apply here: uni-tuebingen.de/en/128980#c2...
you've really made it in math if your name has been turned into an adjective, but in lower-case spelling
October 1, 2025 at 4:14 PM
you've really made it in math if your name has been turned into an adjective, but in lower-case spelling
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
Very nice plenary talk at #ITW2025 by Debbie Leung (@debbie-leung-q.bsky.social) on (non)-additivity of quantum channel capacity.
Some much there is unknown—or just completely weird!
Some much there is unknown—or just completely weird!
September 30, 2025 at 11:18 PM
Very nice plenary talk at #ITW2025 by Debbie Leung (@debbie-leung-q.bsky.social) on (non)-additivity of quantum channel capacity.
Some much there is unknown—or just completely weird!
Some much there is unknown—or just completely weird!
September 23, 2025 at 3:14 PM
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
I interrupt all the misery in this world for 90 seconds on whether chili is soup.
September 23, 2025 at 1:41 AM
I interrupt all the misery in this world for 90 seconds on whether chili is soup.
the mood when all the major inequalities conspire to go the wrong way
proof by please just let me have this one
September 20, 2025 at 12:16 AM
the mood when all the major inequalities conspire to go the wrong way
Reposted by Felix Leditzky 🏳️🌈🏳️⚧️
proof by please just let me have this one
September 19, 2025 at 11:05 PM
proof by please just let me have this one