Mastodawn

Want to learn more about novel tools emerging in the #quantumcomputing ecosystem? Don't miss our #training on the QURI SDK Environment.

The QURI SDK comprises tools for developing, simulating, and evaluating #quantumalgorithms. The session introduces the software suite, explores the family of Quantum Selected Configuration Interaction algorithms, and touches on software development for future error-corrected systems.

🗓️ May 13, 2026 at LRZ
🔗 Registration:
https://app1.edoobox.com/en/LRZ/Onsite%20Courses/Course.ed.0502cedc035b_10336409893

Javier Manuel Martín Alonso Apr 14

Happy #WorldQuantumDay! 🌌
On April 20, Quantum Observables for Collider Physics 2026 opens at CERN, bringing entanglement, magic, and collider observables closer to the center of high-energy physics. Proud to contribute to this direction through the Theorem 4.3.1 framework. Time to move beyond correlations and start mapping quantum geometry. 🚀
🔗 doi.org https://doi.org/10.5281/zenodo.18207031
https://doi.org/10.5281/zenodo.18353640
https://doi.org/10.5281/zenodo.18764143
#QuantumAlgorithms #QuantumGravity #Physics #Entanglement #CERN #QFT

Topological Vortex Superradiance and TMST: A QCD Framework for Intrinsic Charm and Proton Structure Tests with Belle II at the Chiral Belle Polarization Upgrade

We develop a topological QCD framework in which color confinement, intrinsic charm and the proton’s partonic structure emerge from an entanglement–driven phase transition between a three–valence–quark regime and a gluon–dominated collective condensate. The central ingredient is the Two–Mode Squeezing Threshold (TMST), an entanglement–dominance threshold T_0 at which a collective vortex mode in color space becomes superradiantly amplified and stabilizes heavy quark–antiquark components (such as intrinsic charm) as quasi–topological excitations rather than rare perturbative fluctuations. This mechanism provides a first–principles, geometric explanation of intrinsic charm signals in global PDF analyses and of the gluon–cloud picture of the proton, unifying them with a topological vortex description of confinement and ER=EPR–type geometric channels. On the phenomenological side, we show how the TMST can be probed through two–particle correlation observables in high–luminosity e+e− collisions. In particular, we formulate an operational equation (Eq. 1, implemented in an open Python module) that relates an effective “entanglement temperature” T_obs derived from the log–negativity of the TMST state, to quantities extracted from two–particle correlation functions, dT_obs = (d dv) / (dv dT), providing a concrete handle to distinguish standard gluon radiation from topological vortex stabilization in heavy–flavor final states. The Chiral Belle / SuperKEKB electron–polarization upgrade and Belle II–style e+e− correlation measurements offer an especially clean environment to test this scenario, by searching for TMST–driven changes in spin– and flavor–sensitive observables associated with charm and exotic spectroscopy. The framework is formulated in a way that is directly implementable in basf2–type analysis chains and extensible to lattice QCD, global PDF fits and cold–atom analogs. Keywords QCD confinement intrinsic charm proton structure topological vortices Two–Mode Squeezing Threshold (TMST) entanglement dominance gluon condensate Belle II Chiral Belle polarization upgrade SuperKEKB e+e− correlations spin observables exotic hadron spectroscopy dark sector searches electroweak precision

Zenodo

Javier Manuel Martín Alonso Apr 14

Happy #WorldQuantumDay! 🌌

2026 may be the year theory truly meets experiment. Entanglement Dominance should be tested not as a fragile fluke, but as a robust geometric feature of the vacuum. From ⁴He* BEC platforms at ANU to virtual boson signatures at CERN, the message is getting harder to ignore.
Check the math and tools here:
🔗 doi.org https://doi.org/10.5281/zenodo.18207031
https://doi.org/10.5281/zenodo.18353640
https://doi.org/10.5281/zenodo.18764143
#QuantumAlgorithms #QuantumGravity #QuantumInformation #Physics #Entanglement #CERN

Topological Vortex Superradiance and TMST: A QCD Framework for Intrinsic Charm and Proton Structure Tests with Belle II at the Chiral Belle Polarization Upgrade

We develop a topological QCD framework in which color confinement, intrinsic charm and the proton’s partonic structure emerge from an entanglement–driven phase transition between a three–valence–quark regime and a gluon–dominated collective condensate. The central ingredient is the Two–Mode Squeezing Threshold (TMST), an entanglement–dominance threshold T_0 at which a collective vortex mode in color space becomes superradiantly amplified and stabilizes heavy quark–antiquark components (such as intrinsic charm) as quasi–topological excitations rather than rare perturbative fluctuations. This mechanism provides a first–principles, geometric explanation of intrinsic charm signals in global PDF analyses and of the gluon–cloud picture of the proton, unifying them with a topological vortex description of confinement and ER=EPR–type geometric channels. On the phenomenological side, we show how the TMST can be probed through two–particle correlation observables in high–luminosity e+e− collisions. In particular, we formulate an operational equation (Eq. 1, implemented in an open Python module) that relates an effective “entanglement temperature” T_obs derived from the log–negativity of the TMST state, to quantities extracted from two–particle correlation functions, dT_obs = (d dv) / (dv dT), providing a concrete handle to distinguish standard gluon radiation from topological vortex stabilization in heavy–flavor final states. The Chiral Belle / SuperKEKB electron–polarization upgrade and Belle II–style e+e− correlation measurements offer an especially clean environment to test this scenario, by searching for TMST–driven changes in spin– and flavor–sensitive observables associated with charm and exotic spectroscopy. The framework is formulated in a way that is directly implementable in basf2–type analysis chains and extensible to lattice QCD, global PDF fits and cold–atom analogs. Keywords QCD confinement intrinsic charm proton structure topological vortices Two–Mode Squeezing Threshold (TMST) entanglement dominance gluon condensate Belle II Chiral Belle polarization upgrade SuperKEKB e+e− correlations spin observables exotic hadron spectroscopy dark sector searches electroweak precision

Zenodo

QubitHub Apr 12

Circuit spotlight: Quantum Teleportation

Transfers an unknown quantum state between qubits using a shared Bell pair and 2 classical bits.

Alice entangles her message with her half, measures, sends 2 bits to Bob. Bob applies X/Z corrections to reconstruct the state.

No FTL. Original destroyed. Entanglement consumed.

Explore it → https://qubithub.co/circuits/e99b8b75-b2fd-47b7-a7d1-ad786ae177c5

#QuantumComputing #Qiskit #QuantumAlgorithms

QubitHub Apr 11

Circuit spotlight: QAOA — MaxCut

Variational quantum approach to NP-hard graph optimization.

Partitions a 4-node graph to maximize cut edges. Cost operator uses ZZ interactions; mixer uses X rotations.

For 3-regular graphs at p=1: worst-case guarantee ~0.692 (Farhi et al., 2014).

Explore it → https://qubithub.co/circuits/6915d62d-a518-42f9-89f6-482a1283818b

#QuantumComputing #Optimization #QuantumAlgorithms

QubitHub Apr 10

Circuit spotlight: Grover's Search (1996)

Finds a marked item in an unsorted database with quadratic speedup — O(√N) queries instead of O(N).

For 2 qubits: 1 oracle query, 1 diffusion step, 100% success on a simulator. One iteration is all this special case needs.

Oracle flips a phase. Diffusion amplifies it. Interference does the rest.

Explore it on QubitHub → https://qubithub.co/circuits/478a76af-df90-4fad-9ee2-ab6ee8e6ce0a

#QuantumComputing #Qiskit #QuantumAlgorithms

Winbuzzer Jan 22

https://winbuzzer.com/2026/01/22/microsoft-open-sources-quantum-development-kit-chemistry-error-correction-xcxwbn/

Microsoft Open-Sources Quantum Dev Tools for Chemistry

#QuantumComputing #Microsoft #QuantumErrorCorrection #QuantumAlgorithms #AzureQuantum #CloudComputing #Chemistry #BigTech

Show thread

Zoomers of the Sunshine Coast 🇨🇦Jan 18

@quantumcomputing @perimeterinstitute @uwaterloo @scicomm @foss @privacy @openscience @eff @fsf

#QuantumComputing #MachineLearning #QuantumML #FederatedLearning #AI #QuantumPhysics #ReinforcementLearning #Entanglement #QuantumEntanglement #TechPodcast #SciComm #ComputerScience #QuantumAlgorithms #DeepLearning #NISQ #SciencePodcast #EvidenceBasedPodcast #ScienceCommunication #OpenScience #Privacy #EthicalAI #DistributedSystems

Show thread

Zoomers of the Sunshine Coast 🇨🇦Jan 18

The heterogeneity challenge: When quantum devices differ, their states exist in incompatible mathematical spaces (Hilbert spaces). You can't just average them.

This isn't a bug to fix—it's a physics problem requiring physics-based solutions.

#ComputerScience #QuantumAlgorithms

Show thread

Rod Van Meter Sep 29, 2025

If @hossenfelder.bsky.social wants to actually make a video about the current state of the art in #quantumComputing and #quantumAlgorithms, she should read arxiv.org/abs/2310.03011, which is only about 400 pages.

Quantum algorithms: A survey o...

Quantum algorithms: A survey of applications and end-to-end complexities

The anticipated applications of quantum computers span across science and industry, ranging from quantum chemistry and many-body physics to optimization, finance, and machine learning. Proposed quantum solutions in these areas typically combine multiple quantum algorithmic primitives into an overall quantum algorithm, which must then incorporate the methods of quantum error correction and fault tolerance to be implemented correctly on quantum hardware. As such, it can be difficult to assess how much a particular application benefits from quantum computing, as the various approaches are often sensitive to intricate technical details about the underlying primitives and their complexities. Here we present a survey of several potential application areas of quantum algorithms and their underlying algorithmic primitives, carefully considering technical caveats and subtleties. We outline the challenges and opportunities in each area in an "end-to-end" fashion by clearly defining the problem being solved alongside the input-output model, instantiating all "oracles," and spelling out all hidden costs. We also compare quantum solutions against state-of-the-art classical methods and complexity-theoretic limitations to evaluate possible quantum speedups. The survey is written in a modular, wiki-like fashion to facilitate navigation of the content. Each primitive and application area is discussed in a standalone section, with its own bibliography of references and embedded hyperlinks that direct to other relevant sections. This structure mirrors that of complex quantum algorithms that involve several layers of abstraction, and it enables rapid evaluation of how end-to-end complexities are impacted when subroutines are altered.

arXiv.org