Mohammad Alhejji
@mohammadalhejji.bsky.social
Postdoctoral fellow at the University of New Mexico.
Reposted by Mohammad Alhejji
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 Mohammad Alhejji
the ugly truth they don't want you to know is that the math without numbers is actually more fun than the math with numbers
November 18, 2025 at 1:59 PM
the ugly truth they don't want you to know is that the math without numbers is actually more fun than the math with numbers
ρ, ρ, ρ your 🛶 gently…
November 12, 2025 at 3:51 PM
ρ, ρ, ρ your 🛶 gently…
Sometimes a submission is too beautiful to be accepted and that’s okay…
November 8, 2025 at 2:17 AM
Sometimes a submission is too beautiful to be accepted and that’s okay…
If we can understand it, is it quantum?
October 30, 2025 at 2:30 AM
If we can understand it, is it quantum?
Reposted by Mohammad Alhejji
this situation of mine was the precise situation of every mortal that breathes
October 24, 2025 at 4:47 AM
this situation of mine was the precise situation of every mortal that breathes
A moratorium on “paving the way”.
October 23, 2025 at 2:38 PM
A moratorium on “paving the way”.
What a difference there is between two and one. Three and two are a world apart. Four and three are almost the same, and so on.
October 14, 2025 at 1:42 AM
What a difference there is between two and one. Three and two are a world apart. Four and three are almost the same, and so on.
Reposted by Mohammad Alhejji
Reposted by Mohammad Alhejji
sleights of hand and countless subtleties
October 8, 2025 at 2:47 AM
sleights of hand and countless subtleties
When it’s good, it’s good.
arxiv.org/abs/1901.10711
arxiv.org/abs/1901.10711
A note on commutators in algebras of unbounded operators
We show that the identity is the sum of two commutators in the algebra of all operators affiliated with a von Neumann algebra of type II$_1$, settling a question, in the negative, that had puzzled a n...
arxiv.org
October 7, 2025 at 11:04 PM
When it’s good, it’s good.
arxiv.org/abs/1901.10711
arxiv.org/abs/1901.10711
Reposted by Mohammad Alhejji
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 Mohammad Alhejji
good morning it’s day 2 ballon fiesta and the balloons are up today
October 5, 2025 at 1:26 PM
good morning it’s day 2 ballon fiesta and the balloons are up today
Reading www.ams.org/journals/pro...
and muttering okily dokily as I go along
and muttering okily dokily as I go along
a cartoon character says okily dokily in front of a house
ALT: a cartoon character says okily dokily in front of a house
media.tenor.com
October 3, 2025 at 8:19 PM
Reading www.ams.org/journals/pro...
and muttering okily dokily as I go along
and muttering okily dokily as I go along
a math paper in the style of Moby Dick.
an illustration of a whale and a boat with stars in the background
ALT: an illustration of a whale and a boat with stars in the background
media.tenor.com
October 2, 2025 at 3:20 AM
a math paper in the style of Moby Dick.
Reposted by Mohammad Alhejji
To be short, then, a whale is a spouting fish with a horizontal tail. There you have him.
October 2, 2025 at 12:47 AM
To be short, then, a whale is a spouting fish with a horizontal tail. There you have him.
Reposted by Mohammad Alhejji
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!
Reposted by Mohammad Alhejji
what is it that makes the front of a man—what, indeed, but his eyes?
September 24, 2025 at 12:47 PM
what is it that makes the front of a man—what, indeed, but his eyes?
Reposted by Mohammad Alhejji
good morning from new mexico, where once again a gorgeous sunrise is paired with a crescent moon and just above it, jupiter visible to the naked eye
September 19, 2025 at 12:46 PM
good morning from new mexico, where once again a gorgeous sunrise is paired with a crescent moon and just above it, jupiter visible to the naked eye
Reposted by Mohammad Alhejji
are you the man to snap your spine
September 16, 2025 at 12:47 PM
are you the man to snap your spine
Reposted by Mohammad Alhejji
And heaved and heaved, still unrestingly heaved the black sea
September 11, 2025 at 8:47 PM
And heaved and heaved, still unrestingly heaved the black sea
Reposted by Mohammad Alhejji
Excited to share our new paper! We prove that Lieb’s permanental dominance conjecture, which has been open for over half a century, is equivalent to a certain conjecture about the bunching behavior of bosons.
arxiv.org/abs/2509.04550
arxiv.org/abs/2509.04550
Measuring Multiparticle Indistinguishability with the Generalized Bunching Probability
The indistinguishability of many bosons undergoing passive linear transformations followed by number basis measurements is fully characterized by its visible state. However, measuring all of the param...
arxiv.org
September 8, 2025 at 1:46 AM
Excited to share our new paper! We prove that Lieb’s permanental dominance conjecture, which has been open for over half a century, is equivalent to a certain conjecture about the bunching behavior of bosons.
arxiv.org/abs/2509.04550
arxiv.org/abs/2509.04550
Here depicted is Constantin Carathéodory. I don’t know how but I imagined be looked different
August 20, 2025 at 12:02 AM
Here depicted is Constantin Carathéodory. I don’t know how but I imagined be looked different
Reposted by Mohammad Alhejji
I'll be attending SQuInT 2025:
squint.unm.edu/events/2025....
Anyone else on bsky planning to go? (out of curiousity)
squint.unm.edu/events/2025....
Anyone else on bsky planning to go? (out of curiousity)
2025 Annual SQuInT Conference ::
Southwest Quantum Information and Technology | The University of New Mexico
squint.unm.edu
August 17, 2025 at 3:49 PM
I'll be attending SQuInT 2025:
squint.unm.edu/events/2025....
Anyone else on bsky planning to go? (out of curiousity)
squint.unm.edu/events/2025....
Anyone else on bsky planning to go? (out of curiousity)