Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Higher order Magnus expansions for two-level quantum dynamics
Chen Wei, Frank Großmann·Mar 14, 2026
We investigate the Magnus expansion for a generic time-dependent two-level system under single-axis driving. By virtue of the \(\mathfrak{su}(2)\) Lie algebra, the expansion is decomposed into a commutator-free form. To illustrate the usefulness of t...
A Highly Sensitive Diamond NV Magnetometer Using Ramsey Interferometry with a Short Sensor-to-Sample Distance
Yuta Araki, Takeharu Sekiguchi, Yuji Hatano +11 more·Mar 14, 2026
In this study, we developed a diamond quantum magnetometer based on Ramsey interferometry with a short sensor-to-sample distance. Conventional biomagnetic sensors with ensemble nitrogen-vacancy centers using continuous-wave optically detected magneti...
Directly estimating the fidelity of measurement-based quantum computation
David T. Stephen, Michael Foss-Feig·Mar 14, 2026
In measurement-based quantum computation (MBQC), quantum circuits are implemented using adaptive measurements on an entangled resource state. In practice, the resource state will always be prepared with some noise, and it is crucial to understand the...
Phononic Bragg Reflectors for Thermal Insulation of Scalable Cryogenic Control Electronics from Qubits
Isabelle V. Sprave, Denny Dütz, Sebastian Kock +5 more·Mar 14, 2026
Scaling solid-state architectures to the millions of qubits required for utility-scale quantum computing could benefit from the integration of control electronics in the immediate vicinity of the quantum layer. However, lithographically fabricated so...
Optimal Distillation of Non-Markovianity: Bounds, Multi-Copy Gain, and the Weak-to-Essential Transition
Gabriel M. Arantes, Barbara Amaral, Nadja K. Bernardes·Mar 14, 2026
Quantum channels generally reduce the distinguishability of quantum states, limiting information transmission and processing. Previous work introduced a protocol capable of increasing the distinguishability of states after the action of a specific qu...
Quantum Correlations and Entanglement in Generalized Dicke-Ising Models
Santiago F. Caballero-Benitez·Mar 14, 2026
Quantum systems inside high-Q cavities offer an excellent testbed for the control of emergent symmetries induced by light and their interplay with quantum matter. Recently several developments in cavity experiments with neutral atoms and other quantu...
Quantum-Enhanced Vision Transformer for Flood Detection using Remote Sensing Imagery
Soumyajit Maity, Behzad Ghanbarian·Mar 14, 2026
Reliable flood detection is critical for disaster management, yet classical deep learning models often struggle with the high-dimensional, nonlinear complexities inherent in remote sensing data. To mitigate these limitations, we introduced a novel Qu...
Thermodynamic Limits of Quantum Search
Ralf Riedinger·Mar 13, 2026
Modern cryptography relies on keyed symmetric ciphers to ensure the secrecy and authenticity of high bandwidth data transfer. While the advent of quantum computers poses a challenge for public key cryptography, unbroken ciphers are considered safe ag...
Quantum dial
Aashish Sah, Suman Kundu, Priyank Singh +3 more·Mar 13, 2026
Accurate control of quantum degrees of freedom is promising for sensing, communication, and computing, but building a useful quantum computer faces a central isolation-and-control challenge: qubits must remain well isolated from their environment to ...
Residual quantum correlations and non-Markovian noise
Hermann L. Albrecht, David M. Bellorin·Mar 13, 2026
Wu et al. introduced residual quantum correlations (RQC) in 2015 and defined them in terms of two complementary bases. Given a measure for classical correlations, its optimization defines a local basis. Relative to this local basis, one defines a new...
Quantum contextuality with mixed states of 1D symmetry-protected topological order
Leroy Fagan, Akimasa Miyake·Mar 13, 2026
Bell theorems of many-body nonlocality and contextuality serve as a benchmark for proving quantum advantage in that a quantum computer outperforms a classical computer for a certain problem. In practice, however, near-term quantum devices do not prep...
The Quest for Quantum Advantage in Combinatorial Optimization: End-to-end Benchmarking of Quantum Solvers vs. Multi-core Classical Solvers
Pranav Chandarana, Alejandro Gomez Cadavid, Enrique Solano +3 more·Mar 13, 2026
We perform an end-to-end benchmark of a hybrid sequential quantum computing (HSQC) solver for higher-order unconstrained binary optimization (HUBO), executed on IBM Heron r3 quantum processors to evaluate the potential of current quantum hardware for...
Co2SeO3Cl2: Studies of Emerging Magnetoelectric Coupling in a Polar, Buckled Honeycomb Material
Faith O. Adeyemi, Xudong Huai, Mohamed Kandil +3 more·Mar 13, 2026
The development of magnetoelectric materials requires chemical design strategies that integrate structural polarity with magnetic lattices capable of supporting competing spin interactions. Here, we demonstrate such an approach in the polar, buckled ...
Bit-Vector Abstractions to Formally Verify Quantum Error Detection & Entanglement
Arun Govindankutty·Mar 13, 2026
As the number of qubits increases, quantum circuits become more complex and their state space grows rapidly. This makes functional verification challenging for conventional techniques. Ensuring correctness is especially critical for quantum error cor...
Quantum Process Realization of LDPC Code Dualities and Product Constructions
Shuhan Zhang, Deepak Aryal, Yi-Zhuang You·Mar 13, 2026
We realize a broad class of code constructions, including Kramers-Wannier duality, tensor product, and check product, as quantum processes consisting of ancilla initialization, local unitaries, and projective measurements. Using ZX-calculus, we repre...
Active Sampling Sample-based Quantum Diagonalization from Finite-Shot Measurements
Rinka Miura·Mar 13, 2026
Near-term quantum devices provide only finite-shot measurements and prepare imperfect, contaminated states. This motivates algorithms that convert samples into reliable low-energy estimates without full tomography or exhaustive measurements. We propo...
Perspective: Interactions and Nonlinearity in Non-Hermitian Physics
Federico Roccati, Federico Balducci·Mar 13, 2026
For decades, Hermiticity was considered an immutable axiom of quantum mechanics, essential for ensuring real energies and unitary evolution. This perspective has shifted radically, driven by the realization that non-Hermitian Hamiltonians provide a p...
Spin qubit gates via phonon buses in electron nanowires
Dylan Lewis, Roopayan Ghosh, Sanjeev Kumar +4 more·Mar 13, 2026
Scalable architectures for quantum computing using semiconductor quantum dots require interactions between qubits beyond adjacent quantum dots. Here, we propose using nanowires of electrons to mediate the interaction between two quantum dots. Virtual...
Overcoming intrinsic material limitations through cavity feedback
M. Ebrahimi, Y. Huang, V. A. S. V. Bittencourt +3 more·Mar 13, 2026
Magnons, the quanta of spin waves, have significant potential for use in modern technologies, especially when strongly coupled to another mode for read-out and control. However, while magnons strongly interact with microwave photons via the magnetic-...
Resource-Optimal Importance Sampling for Randomized Quantum Algorithms
Davide Cugini, Touheed Anwar Atif, Yigit Subasi·Mar 13, 2026
Randomized protocols are procedures that incorporate probabilistic choices during their execution and they play a central role in quantum algorithms, spanning Hamiltonian simulation, noise mitigation, and measurement tasks. In practical implementatio...