Quantum Research Brain
Live trends in quantum computing research, updated daily from arXiv.
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Ask questions about quantum computing — get answers grounded in 11,886 papers with citations.
Total Papers
11,886
+442 this monthThis Month
442
-75% vs lastToday
0
Active Categories
140
Research Volume
11,045 papers in 12 months (-19% vs prior quarter)
Topic Distribution
Research categories by paper count (12 months)
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Emerging Topics
Keywords trending up in paper titles (last 30 days vs prior)
This Week in Quantum
Browse all papers →Measurement-induced state transitions across the fluxonium qubit landscape
Alex A. Chapple, Boris M. Varbanov, Alexander McDonald +1 more·Apr 9, 2026
Understanding the mechanisms that limit high-fidelity readout in circuit quantum electrodynamics is essential for its optimization. Multi-photon resonances are understood to be a limiting factor, causing population transfer from the computational sta...
Accelerating Quantum Tensor Network Simulations with Unified Path Variations and Non-Degenerate Batched Sampling
Taylor Lee Patti, Paavai Pari, Yang Gao +5 more·Apr 9, 2026
Quantum trajectory methods reduce the computational overhead of simulating noisy quantum systems, approximating them with $m$ stochastically sampled $2^n$-entry quantum statevectors rather than exact $2^{2n}$-entry density matrices. Recently, Pre-Tra...
Time evolution of impurity models and their universality for quantum computation
N. C. Mai Pham, Raul A. Santos·Apr 9, 2026
Impurity Hamiltonians are systems of $N$ fermionic modes where $O(1)$ of them interact among themselves via quartic (or higher order) fermion terms, while coupling quadratically with $O(N)$ bath modes. Without the quartic interactions, these systems ...
Multivariate quantum reservoir computing with discrete and continuous variable systems
Tobias Fellner, Jonas Merklinger, Christian Holm·Apr 9, 2026
Quantum reservoir computing is a promising paradigm for processing temporal data. So far, the primary focus has been on univariate time series. However, the most relevant and complex real-world data is multidimensional. In this paper, we establish an...
Rapid mixing for high-temperature Gibbs states with arbitrary external fields
Ainesh Bakshi, Xinyu Tan·Apr 9, 2026
Gibbs states are a natural model of quantum matter at thermal equilibrium. We investigate the role of external fields in shaping the entanglement structure and computational complexity of high-temperature Gibbs states. External fields can induce enta...