Jonathan Conrad
@jonconrad.bsky.social
Infinitely curious about almost everything.
Reposted by Jonathan Conrad
Great opportunity for postdocs in the US looking move to Austria:
stipendien.oeaw.ac.at/en/fellowshi...
stipendien.oeaw.ac.at/en/fellowshi...
APART-USA
Stipendien & Preise der Österreichischen Akademie der Wissenschaften
stipendien.oeaw.ac.at
July 24, 2025 at 7:56 PM
Great opportunity for postdocs in the US looking move to Austria:
stipendien.oeaw.ac.at/en/fellowshi...
stipendien.oeaw.ac.at/en/fellowshi...
Reposted by Jonathan Conrad
On July 17-18 a small symposium "Dreams of Quantum" will be held in honor of David DiVincenzo's work and retirement at RWTH Aachen. The event can be attended via Zoom by all. Information about the program of speakers & the Zoom link can be found at www.quantuminfo.physik.rwth-aachen.de/cms/~bmmwed
July 2, 2025 at 10:22 AM
On July 17-18 a small symposium "Dreams of Quantum" will be held in honor of David DiVincenzo's work and retirement at RWTH Aachen. The event can be attended via Zoom by all. Information about the program of speakers & the Zoom link can be found at www.quantuminfo.physik.rwth-aachen.de/cms/~bmmwed
Reposted by Jonathan Conrad
I'm hiring a postdoc! If you'd like to work with me on quantum learning, error correction, quantum algorithms, and FTQC at Virginia Tech in the Washington, DC metro area, please apply here: careers.pageuppeople.com/968/cw/en-us...
Details | Postdoctoral Associate - Computer Science | Careers | Division of Human Resources | Virginia Tech
careers.pageuppeople.com
April 28, 2025 at 7:43 PM
I'm hiring a postdoc! If you'd like to work with me on quantum learning, error correction, quantum algorithms, and FTQC at Virginia Tech in the Washington, DC metro area, please apply here: careers.pageuppeople.com/968/cw/en-us...
New linear programming bounds for QECCs! If I read the results correctly this is vastly general and includes all physically realized codes for CV systems.
arxiv.org/abs/2502.09514
arxiv.org/abs/2502.09514
Continuous Variable Quantum MacWilliams Identities
We derive bounds on general quantum error correcting codes against the displacement noise channel. The bounds limit the distances attainable by codes and also apply in an approximate setting. Our main...
arxiv.org
February 14, 2025 at 7:38 AM
New linear programming bounds for QECCs! If I read the results correctly this is vastly general and includes all physically realized codes for CV systems.
arxiv.org/abs/2502.09514
arxiv.org/abs/2502.09514
Happy to announce that I just moved to Lausanne to work at EPFL in the new group headed by Thomas Vidick!
Going skiing on the first day after a move definitely makes for a fun start. :)
Going skiing on the first day after a move definitely makes for a fun start. :)
February 3, 2025 at 10:06 AM
Happy to announce that I just moved to Lausanne to work at EPFL in the new group headed by Thomas Vidick!
Going skiing on the first day after a move definitely makes for a fun start. :)
Going skiing on the first day after a move definitely makes for a fun start. :)
Julio Magdalena on Anyons!
January 23, 2025 at 3:23 PM
Julio Magdalena on Anyons!
Reposted by Jonathan Conrad
Soon, @christophe.vuillot.info and I will be restarting the online QASAR seminar series on quantum error correction! Please let me know if you would like to give a talk :)
January 23, 2025 at 1:04 PM
Soon, @christophe.vuillot.info and I will be restarting the online QASAR seminar series on quantum error correction! Please let me know if you would like to give a talk :)
Reposted by Jonathan Conrad
Have SIC-POVMs finally been found? @sflammia.bsky.social arxiv.org/abs/2501.03970
A Constructive Approach to Zauner's Conjecture via the Stark Conjectures
We propose a construction of $d^2$ complex equiangular lines in $\mathbb{C}^d$, also known as SICPOVMs, which were conjectured by Zauner to exist for all d. The construction gives a putatively complet...
arxiv.org
January 8, 2025 at 4:54 AM
Have SIC-POVMs finally been found? @sflammia.bsky.social arxiv.org/abs/2501.03970
Happy holidays everybody! If you get bored feasting or need to take a rest from rewatching Home Alone for the 20th time -- here a little paper from us: arxiv.org/abs/2412.17909 .
We show that GKP codes form CV 2-designs and how to use this to design class. shadow protocols.
We show that GKP codes form CV 2-designs and how to use this to design class. shadow protocols.
Continuous-variable designs and design-based shadow tomography from random lattices
We investigate state designs for continuous-variable quantum systems using the aid of lattice-like quantum states. These are code states of Gottesman-Kitaev-Preskill (GKP) codes. We show that for an n...
arxiv.org
December 25, 2024 at 8:42 AM
Happy holidays everybody! If you get bored feasting or need to take a rest from rewatching Home Alone for the 20th time -- here a little paper from us: arxiv.org/abs/2412.17909 .
We show that GKP codes form CV 2-designs and how to use this to design class. shadow protocols.
We show that GKP codes form CV 2-designs and how to use this to design class. shadow protocols.
Reposted by Jonathan Conrad
Congrats to Brenner, Caha, Coiteux-Roy and Koenig for this fantastic result! (4/4)
arxiv.org/abs/2412.13164
arxiv.org/abs/2412.13164
Factoring an integer with three oscillators and a qubit
A common starting point of traditional quantum algorithm design is the notion of a universal quantum computer with a scalable number of qubits. This convenient abstraction mirrors classical computatio...
arxiv.org
December 18, 2024 at 7:11 AM
Congrats to Brenner, Caha, Coiteux-Roy and Koenig for this fantastic result! (4/4)
arxiv.org/abs/2412.13164
arxiv.org/abs/2412.13164
o.o
Max Geier, Frederik Nathan
Self-correcting GKP qubit in a superconducting circuit with an oscillating voltage bias
https://arxiv.org/abs/2412.03650
Self-correcting GKP qubit in a superconducting circuit with an oscillating voltage bias
https://arxiv.org/abs/2412.03650
December 6, 2024 at 8:19 PM
o.o
Reposted by Jonathan Conrad
Submissions for QCTiP 2025 are now open.
December 5, 2024 at 10:45 AM
Submissions for QCTiP 2025 are now open.
Hi all!
I just uploaded my recently defended thesis, I hope you like it. Hit me up if you want to chat about anything GKP/QEC or life. :)
arxiv.org/abs/2412.02442
I just uploaded my recently defended thesis, I hope you like it. Hit me up if you want to chat about anything GKP/QEC or life. :)
arxiv.org/abs/2412.02442
The fabulous world of GKP codes
Quantum error correction is an essential ingredient in the development of quantum technologies. Its subject is to investigate ways to embed quantum Hilbert spaces into a physical system such that this...
arxiv.org
December 4, 2024 at 9:56 AM
Hi all!
I just uploaded my recently defended thesis, I hope you like it. Hit me up if you want to chat about anything GKP/QEC or life. :)
arxiv.org/abs/2412.02442
I just uploaded my recently defended thesis, I hope you like it. Hit me up if you want to chat about anything GKP/QEC or life. :)
arxiv.org/abs/2412.02442