New #Paper published in Quantum: Ground state energy and magnetization curve of a frustrated magnetic system from real-time evolution on a digital quantum processor
New #Paper published in Quantum: Quantum state preparation for multivariate functions
New #Paper published in Quantum: Improving entanglement purification through coherent superposition of roles
New #Paper published in Quantum: Accurate and Honest Approximation of Correlated Qubit Noise
New #Paper published in Quantum: Hamiltonian Learning via Shadow Tomography of Pseudo-Choi States
New #Paper published in Quantum: Multi-copy activation of genuine multipartite entanglement in continuous-variable systems
The different kinds of notes by Baldur Bjarnason [Shared]
The post where I outline my general theory of notetaking for all to disagree with
At the end of my last post, I mentioned that I had switched to pen and paper notetaking in the early 2010s, after years of serious digital notetaking using plain text files.
I wrote about how much more enjoyable the analogue notetaking was but what I didn’t mention was why I abandoned my plain text system. Nor did I write about my first foray into serious notetaking.
https://welchwrite.com/blog/2025/04/08/the-different-kinds-of-notes-by-baldur-bjarnason-shared/
New #Paper published in Quantum: Approximate inverse measurement channel for shallow shadows
New #Paper published in Quantum: Controlling measurement-induced phase transitions with tunable detector coupling
New #Paper published in Quantum: A Note on Quantum-Secure PRPs
New #Paper published in Quantum: What can unitary sequences tell us about multi-time physics?
New #Paper published in Quantum: Resource-Optimized Grouping Shadow for Efficient Energy Estimation
New #Paper published in Quantum: Spatially-Coupled QLDPC Codes
New #Paper published in Quantum: Charge and Spin Sharpening Transitions on Dynamical Quantum Trees
New #Paper published in Quantum: Noise-tolerant public-key quantum money from a classical oracle
New #Paper published in Quantum: Nonlinearity of the Fidelity in Open Qudit Systems: Gate and Noise Dependence in High-dimensional Quantum Computing