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davehemming.bsky.social
Just read this article - that’s 15 minutes I’ll never get back - or will I? #time #science #quantumtheory
September 27, 2026 at 7:45 PM
informaq.bsky.social
Proved that regularized stabilized sandwiched Rényi divergences converge to regularized relative entropy as order approaches one, with applications to quantum channel discrimination and asymptotic equipartition.

#QuantumInformation #QuantumTheory #Research
Continuity of Regularized Channel Rényi Divergences
arxiv.org
September 25, 2026 at 8:25 AM
informaq.bsky.social
New geometric optimization improves the Fer expansion convergence radius by ~30% (from 2 to 2.6058), enabling broader application of this fast-converging quantum evolution formula in quantum simulation and control.

#QuantumSimulation #QuantumControl #QuantumTheory
Improved Convergence Radius of the Fer Expansion for Hermitian Generators
arxiv.org
September 24, 2026 at 7:45 AM
informaq.bsky.social
New method establishes uniform spectral gap for hexagonal AKLT model by decomposing boundary response into common and remainder terms. Uses rooted heap analysis and Kotecský–Preiss estimates.

#QuantumTheory #AKLT #Research
Boundary-State Factorization Method for AKLT Spectral Gap
iq.fp2.dev
September 24, 2026 at 2:04 AM
informaq.bsky.social
Researchers discover quantum computers require both 'magic' and Kirkwood-Dirac negativity for advantage over classical systems. Magic alone proves insufficient for computational superiority.

#QuantumComputing #QuantumTheory #News
Magic and Kirkwood-Dirac Negativity: Essential Requirements for Quantum Computational Advantage
quantumfrontiers.com
September 20, 2026 at 5:01 PM
informaq.bsky.social
Researchers establish equivalence between the BKM coercivity constant and modified log-Sobolev constant, unlocking new analytical tools for characterizing how open quantum systems reach equilibrium without requiring detailed balance assumptions.

#QuantumInformation #QuantumTheory #News
BKM Coercivity Constant Linked to Quantum Equilibrium Convergence
quantumzeitgeist.com
September 18, 2026 at 4:23 PM
informaq.bsky.social
Researchers extend Aumann's Agreement Theorem to quantum systems, proving rational agents cannot agree to disagree in any generalized probability theory—reframing the theorem as a fundamental property of information processing.

#QuantumTheory #QuantumInformation #News
Aumann's Agreement Theorem Extended to Quantum and Generalized Probability Theories
iq.fp2.dev
September 18, 2026 at 3:57 PM
informaq.bsky.social
Establishes log-convexity of trace-norm overlaps and characterizes equality conditions for quantum states. Proves the midpoint α=1/2 is the unique parameter enabling universal data-processing monotonicity under quantum channels.

#QuantumInformation #QuantumTheory #Research
Trace-Norm Overlaps of Quantum States: Interpolation, Equality, and Data-Processing Rigidity
iq.fp2.dev
September 16, 2026 at 8:53 AM
informaq.bsky.social
New method solves Schrödinger equation exactly for nonlinear potentials using classical least action and harmonic coordinate transformations, eliminating reliance on perturbation theory or WKB approximations.

#QuantumMechanics #QuantumTheory #Research
Exact Computation of Quantum Wave Functions for Nonlinear Potentials
arxiv.org
September 16, 2026 at 2:27 AM
informaq.bsky.social
Novel oracle separation proves pseudorandom unitaries fundamentally diverge from function-like states, using differential analysis to exploit low-rank structure in quantum state-to-unitary mappings.

#QuantumCryptography #QuantumTheory #Research
Oracle Separation Between Pseudorandom Unitaries and Function-Like States via Differential Analysis
arxiv.org
September 16, 2026 at 1:18 AM
informaq.bsky.social
Complete determination of multiqubit unextendible product basis sizes using graph-theoretic methods resolves a decades-long challenge in quantum information theory, with systematic constructions for every dimension.

#QuantumInformation #QuantumTheory #Research
Systematic Construction of Multiqubit Unextendible Product Bases
arxiv.org
September 15, 2026 at 11:39 PM
philosophicalmag.bsky.social
What is the de Broglie–Bohm theory? ⚛️
Particles follow fixed paths in a deterministic universe—so are our choices really free?

Dive-in: spr.ly/63327BGuLxW

#QuantumTheory
The de Broglie–Bohm theory: restoring clarity to our understanding of the quantum world
From her recently published paper, Allori discusses the differences between the de Broglie–Bohm theory and orthodox quantum mechanics.
spr.ly
September 14, 2026 at 8:06 PM
yhl2920.bsky.social
Dom🐶～ www

#QLT #QuantumTheory #Dominik
September 13, 2026 at 7:54 AM
informaq.bsky.social
New theorem proves impossible to universally conjugate unknown quantum states via unitary operations. Extends fundamental quantum no-go theorems with implications for quantum cryptography and quantum circuit design.

#QuantumTheory #QuantumInformation #Research
No-Conjugating Theorem: Fundamental Impossibility in Quantum State Operations
arxiv.org
September 11, 2026 at 2:32 AM
informaq.bsky.social
Researchers achieved 4× improved bounds on quantum system relaxation dynamics using information geometry and the Kubo-Mori map, advancing understanding of how quantum systems return to stability after perturbation.

#QuantumDynamics #QuantumTheory #News
Information-Geometric Bounds on Quantum System Relaxation
quantumzeitgeist.com
September 10, 2026 at 3:58 PM
informaq.bsky.social
Proves all 2-dimensional fermionic QCAs decompose into local automorphisms and primitive shifts, establishing they lack nontrivial dynamics and advancing understanding of higher-dimensional quantum systems.

#QuantumAlgorithms #QuantumTheory #Research
Fermionic Quantum Cellular Automata in 2D Are Trivial
arxiv.org
September 10, 2026 at 7:31 AM
informaq.bsky.social
Fermionic Gibbs states of weakly perturbed systems decompose into Gaussian state mixtures at low temperatures, with asymptotically tight temperature bounds revealing distinct mechanisms in weak and strong coupling Fermi-Hubbard regimes.

#QuantumSimulation #FermionicSystems #QuantumTheory
Convex-Gaussian Structure of Fermionic Thermal States in Perturbation Theory
iq.fp2.dev
September 10, 2026 at 5:55 AM
informaq.bsky.social
We prove that generalized Bures-Wasserstein distance violates the data processing inequality for dimensions n≥3, while deriving sufficient conditions for qubit systems to satisfy it. This resolves an open problem in quantum information theory.

#QuantumInformation #QuantumTheory #Research
Generalized Fidelity and the Data Processing Inequality
arxiv.org
September 10, 2026 at 5:16 AM
informaq.bsky.social
Researchers derive an exact fermionic dual of the Bose-Hubbard model using fermionic gauging and generalized Jordan-Wigner transformations, extending the sine-Gordon–Thirring duality and revealing connections to Bose-Fermi mixtures in optical lattices.

#BosonFermionDuality #QuantumTheory #Research
Exact Fermionic Dual of the Bose-Hubbard Model via Generalized Jordan-Wigner Transformations
arxiv.org
September 9, 2026 at 8:56 PM
informaq.bsky.social
Researchers prove complex numbers aren't just mathematical conveniences—they're physically essential for quantum mechanics. In large quantum networks, real-number-only approaches produce arbitrarily large errors proportional to network size.

#QuantumMechanics #QuantumTheory #News
Complex Numbers Proven Fundamentally Necessary for Quantum Theory
physicsworld.com
September 9, 2026 at 5:55 PM
informaq.bsky.social
Developed a renormalized many-body theory for 1D semirelativistic bosons using Schur-complement methods, eliminating UV divergences and recovering the Lieb-Liniger model in the nonrelativistic limit with mean-field predictions for binding scales.

#QuantumTheory #TheoreticalPhysics #Research
Renormalization of One-Dimensional Semirelativistic Bosons with Contact Interactions
arxiv.org
September 9, 2026 at 7:16 AM
informaq.bsky.social
Scientists have shown that full quantum Hamiltonians can be reconstructed from simplified models by solving polynomial equations—overcoming long-standing theoretical barriers, though scalability challenges remain.

#HamiltonianReconstruction #QuantumTheory #News
Reconstructing Full Quantum Hamiltonians from Simplified Models Using Polynomial Algebra
quantumzeitgeist.com
September 9, 2026 at 12:15 AM
microglyphics.bsky.social
Having just finished Helgoland by Carlo Rovelli, I asked Claude to compare his positions with mine.

brywillis634737.substack.com/p/an-archite...

#physics #philosophy #reality #relationships #encounter #architecture #relata #Claude #blog #podcast #substack #quantumtheory #rqm #nature
An Architecture of Encounter with Helgoland
An inquiry of Carlo Rovelli by Claude Opus
brywillis634737.substack.com
September 5, 2026 at 6:45 PM
informaq.bsky.social
Proves that determining whether fermionic cohomology is nonzero on the full Fock space achieves QMA1-completeness, establishing tight complexity bounds for this quantum decision problem via exact frustration-free Hamiltonian constructions.

#QuantumComplexity #QMA1 #QuantumTheory
Fermionic Cohomology on the Full Fock Space is QMA1-Complete
arxiv.org
September 2, 2026 at 3:17 AM
informaq.bsky.social
Real formulation of quantum mechanics on Kähler spaces proves Stone's theorem analogue and demonstrates tunneling probability matches complex quantum mechanics—advancing theoretical foundations without requiring complex numbers.

#QuantumTheory #MathematicalPhysics #Research
Scattering and Tunneling in Real Quantum Mechanics
arxiv.org
September 2, 2026 at 1:43 AM