The author critiques a paper claiming to demonstrate the violation of a Bell inequality using unentangled photons, asserting that such a claim is impossible based on established quantum theory. The author argues that the paper fai...
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Mateus Araújo is a senior postdoc at the University of Valladolid with a focus on quantum physics research.
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Miguel Navascués criticizes a Quanta article for misrepresenting his work on quantum mechanics, highlighting issues of journalistic integrity in science reporting.
The open access movement has largely failed to reduce publishing costs, with many journals maintaining high fees and promoting low-quality research for profit.
The author discusses their journey in developing support for semidefinite programming (SDP) with complex numbers, transitioning from MATLAB and YALMIP to Julia and JuMP. They detail the challenges faced in creating interfaces for ...
The text discusses the recovery of solutions from non-commutative polynomial optimization problems using the NPA and PNA hierarchies. It provides a practical method to recover a state and projectors that reproduce the computed exp...
0 Announcing Ket | More Quantum
2025-01-09 •
The 0.3 release of Ket.jl, a library for quantum information and optimization in Julia, is announced. It aims to provide an open-source alternative to MATLAB and has solved fundamental problems by replacing dependencies and enabli...
0 Writing off APS | More Quantum
2024-10-25 •
The author shares his experience with the review process of his work on semidefinite programming, criticizing the changes made to the text, equations, and references by the publisher, and expressing his frustration with the proces...
0 Sharing the refereeing burden | More Quantum
2024-09-23 •
The author discusses the burden of refereeing in the physics community, questioning whether they are doing their part or being a parasite. They calculate their refereeing burden and find that they are doing more than four times th...
The author discusses a paper on quantum mechanics and the covariance of physical laws in quantum reference frames. He argues that the paper's background doesn't make sense and criticizes the idea of describing a particle in a supe...
0 First Valladolid paper is out! | More Quantum
2024-07-05 •
The author released the first Julia project, a technique to compute key rates in QKD using proper conic methods. The paper is out, and the github repository is now public. The inspiration for this paper came from the Prado museum ...
0 I got a Ramón y Cajal! | More Quantum
2024-06-29 •
The author shares his happiness about receiving a prestigious grant in Spain and discusses the grant evaluation process, expressing his belief that the result is somewhat random due to the high number of good proposals. He emphasi...
0 MATLAB is dead, long live Julia! | More Quantum
2024-04-02 •
The author discusses the limitations of MATLAB and the search for alternatives. He mentions Octave and Python as potential replacements, but ultimately settles on Julia as the best option. He praises Julia's speed, optimization li...
The blog post discusses the concept of the smallest uninteresting number, using a well-known joke/theorem. The author explores the idea of what makes a number interesting and how it relates to the existence of a Wikipedia article ...
0 SDPs with complex numbers | More Quantum
2023-03-14 •
The author discusses the use of SeDuMi to solve SDPs with complex numbers, and the challenges he faced in doing so. He found that SeDuMi could handle positive semidefiniteness constraints on complex Hermitian matrices, but it did ...
0 SDPs are not cheat codes | More Quantum
2023-02-08 •
The author discusses the limitations of SDPs and the need to be careful about their use. He gives examples of problems where numerical solvers fail and emphasizes the importance of identifying nasty problems. The author also point...
0 Redefining classicality | More Quantum
2022-12-07 •
The author is annoyed by the recent talks on quantum physics. He criticizes the redefinition of classicality by some researchers and argues that the world is quantum, and 'classical' systems are quantum systems that are in a state...
0 The death of Quanta Magazine | More Quantum
2022-12-01 •
The blog post criticizes an article published by Quanta Magazine about physicists creating a wormhole using a quantum computer. The author argues that the article is misleading and falls below journalistic standards, pointing out ...