Quantum Updates

Latest developments from quantum computing platforms and research institutions

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3 papers found

From VQE to QEP: why explicit dynamics can help

Smith, J., Johnson, M., Williams, K.•2025-08-21•IBM Research
IBM QuantumarXiv:2508.12345
TL;DR

Introduces Quantum Equilibrium Propagation (QEP) as an evolution of Variational Quantum Eigensolver (VQE), showing how explicit quantum dynamics can improve optimization convergence and reduce noise sensitivity.

127
Qubits
99.1%
Fidelity
0.05%
Error Rate
2500
Gates
Quantum AlgorithmsVQENISQOptimization

Scalable Quantum Error Correction with Surface Codes

Chen, L., Brown, A., Davis, R. et al.•2025-08-15•Google Quantum AI
Google QuantumarXiv:2508.12346
TL;DR

Demonstrates a breakthrough in surface code implementation achieving sub-threshold error rates on a 1000+ qubit quantum processor, paving the way for fault-tolerant quantum computing.

1920
Qubits
99.8%
Fidelity
0.001%
Error Rate
50000
Gates
Error CorrectionSurface CodesFault Tolerance

Quantum Machine Learning on NISQ Devices: A Practical Guide

Garcia, M., Thompson, S.•2025-08-10•MIT
Amazon BraketarXiv:2508.12347
TL;DR

Comprehensive analysis of quantum machine learning algorithms on current NISQ hardware, identifying optimal circuit depths, noise mitigation strategies, and practical applications.

50
Qubits
98.5%
Fidelity
0.1%
Error Rate
1000
Gates
Quantum MLNISQMachine Learning

Platform Overview

IBM Quantum

Qubits1000+
Papers127
Active

Google Quantum

Qubits1920
Papers89
Active

Amazon Braket

Qubits100+
Papers156
Active

Microsoft Azure

Qubits200+
Papers78
Active

IonQ

Qubits64
Papers45
Active