Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Quantum Communication with Quantum Dots Beyond Telecom Wavelengths via Hollow-Core Fibers
Lorenzo Carosini, Francesco Giorgino, Patrik I. Sund +7 more·Sep 15, 2025
Quantum dot single-photon sources are promising for quantum communication. Yet, the most advanced devices operate near 900 nm, where standard single-mode fibers experience significant losses. We address this by employing a hollow-core fiber engineere...
Autonomous stabilization of remote entanglement in a cascaded quantum network
Abdullah Irfan, Kaushik Singirikonda, Mingxing Yao +5 more·Sep 15, 2025
Remote entanglement between widely separated qubits is a fundamental quantum phenomenon and a critical resource for quantum information applications. Generating entanglement between independent qubits separated by arbitrary, potentially large distanc...
Letter of Intent: AICE -- 100m Atom Interferometer Experiment at CERN
Charles Baynham, Andrea Bertoldi, Diego Blas +31 more·Sep 15, 2025
We propose an O(100)m Atom Interferometer (AI) experiment -- AICE -- to be installed against a wall of the PX46 access shaft to the LHC. This experiment would probe unexplored ranges of the possible couplings of bosonic ultralight dark matter (ULDM) ...
Optimizing Quantum Photonic Integrated Circuits using Differentiable Tensor Networks
Mathias Van Regemortel, Thomas Van Vaerenbergh·Sep 15, 2025
Recent reports of large photonic nonlinearities in integrated photonic devices, using the strong excitonic light-matter coupling in semiconductors, necessitate a tailored design framework for quantum processing in the limit of low photon occupation. ...
Multi-block exceptional points in open quantum systems
Aysel Shiralieva, Grigory A. Starkov, Björn Trauzettel·Sep 15, 2025
Open quantum systems can be approximately described by non-Hermitian Hamiltonians (NHHs) and Liouvillian superoperators. The two approaches differ by quantum jump terms corresponding to a measurement of the system by its environment. We analyze the e...
Readout of a solid state spin ensemble at the projection noise limit
Rouven Maier, Cheng-I Ho, Andrej Denisenko +4 more·Sep 15, 2025
Spin ensembles are central to quantum science, from frequency standards and fundamental physics searches to magnetic resonance spectroscopy and quantum sensing. Their performance is ultimately constrained by spin projection noise, yet solid-state imp...
Localised solution of stochastic Schrödinger equation describing simultaneous continuous measurement of position and momentum
Daniel J. Bedingham·Sep 15, 2025
A stochastic Schrödinger equation is presented to describe simultaneous continuous measurement of the position and momentum of a non-relativistic particle. The equation is solved to yield a state localised in position and momentum contingent on the u...
High-performance multiplexed readout of superconducting qubits with a tunable broadband Purcell filter
Yuzhe Xiong, Zilin Wang, Jiawei Zhang +14 more·Sep 15, 2025
Fast, high-fidelity, and low back-action readout plays a crucial role in the advancement of quantum error correction (QEC). Here, we demonstrate high-performance multiplexed readout of superconducting qubits using a tunable broadband Purcell filter, ...
Spatiotemporal dynamics of moiré excitons in van der Waals heterostructures
Giuseppe Meneghini, Samuel Brem, Ermin Malic·Sep 15, 2025
Heterostructures of transition metal dichalcogenides (TMDs) offer unique opportunities in optoelectronics due to their strong light-matter interaction and the formation of dipolar interlayer excitons. Introducing a twist angle or lattice mismatch bet...
Modified rational six vertex model on a rectangular lattice : new formula, homogeneous and thermodynamic limits
Matthieu Cornillault, Samuel Belliard·Sep 15, 2025
We continue the work of Belliard, Pimenta and Slavnov (2024) studying the modified rational six vertex model. We find another formula of the partition function for the inhomogeneous model, in terms of a determinant that mix the modified Izergin one a...
Understanding Quantum Instruments Through the Analysis of $C^*$-Convexity and Their Marginals
B. V. Rajarama Bhat, Arghya Chongdar, Sruthymurali·Sep 15, 2025
Quantum instruments are mathematical devices introduced to describe the conditional state change during a quantum process. They are completely positive map valued measures on measurable spaces. We may also view them as non-commutative analogues of jo...
Emergence of Symmetry in a System of Distinguishable but Identical Particles
Allan Tameshtit·Sep 15, 2025
Instead of the conventional construction of symmetric and antisymmetric states by abruptly projecting with the symmetrizer or antisymmetrizer, this paper investigates rapid but continuous symmetrization via environment-induced decoherence. Density op...
Vital Signs Monitoring with mmWave OFDM JCAS System
Jakub Dobosz, Maximilian Engelhardt, Diego Dupleich +2 more·Sep 15, 2025
Wireless techniques for monitoring human vital signs, such as heart and breathing rates, offer a promising solution in the context of joint communication and sensing (JCAS) with applications in medicine, sports, safety, security, and even the militar...
Non-Hermitian quantum geometric tensor and nonlinear electrical response
Kai Chen, Jie Zhu·Sep 15, 2025
We demonstrate that the non-Hermitian quantum geometric tensor (QGT) governs nonlinear electrical responses in systems with a spectral line gap. The quantum metric, which is the symmetric component of the QGT and takes complex values in non-Hermitian...
Improving Free-Space Continuous Variable Quantum Key Distribution with Adaptive Optics
Mikhael T. Sayat, Marcus Birch, Michael Copeland +6 more·Sep 15, 2025
A significant performance inhibitor of free-space continuous variable quantum key distribution (CVQKD) is turbulence, which gives rise to wavefront phase and amplitude aberrations. We demonstrate that in a turbulent channel, during coherent state tra...
Percolation and matrix spectrum through NIB message passing
Pedro Hack·Sep 15, 2025
Given its computational efficiency and versatility, belief propagation is the most prominent message passing method in several applications. In order to diminish the damaging effect of loops on its accuracy, the first explicit version of generalized ...
Long-exposure Camera Readout for Coherent Control of Nitrogen-Vacancy Center Spins in Diamond
Jiahui Chen, Qilong Wu, Huihui Yu +4 more·Sep 15, 2025
Camera-based wide-field quantum noise spectroscopy (QNS) with nitrogen-vacancy (NV) center spins in diamond can be used to extract DC and AC magnetic field noise with sub-micrometer spatial resolution, but its realization is currently limited by the ...
Heralded Emission Detection in InAs/ZnSe Quantum Dot Solids Using Time-Correlated Photons
Chieh Tsao, Xiang Li, Alex Hinkle +4 more·Sep 15, 2025
Harnessing quantum correlations between photons is an emerging frontier in optical spectroscopy, yet experimental demonstrations have largely remained limited to molecular systems at room temperature. Here, we investigate heralded emission detection ...
Finding Photonics Circuits via $δ$-weakening SMT
Marco Lewis, Benoît Valiron·Sep 15, 2025
For quantum computers based on photonics, one main problem is the synthesis of a photonic circuit that emulates quantum computing gates. The problem requires using photonic components to build a circuit that act like a quantum computing gate with som...
Directly observing relativistic Bohmian mechanics
Yun-Fei Wang, Hui Wang, Tong Zhang +4 more·Sep 15, 2025
Bohmian mechanics, also referred to as the de Broglie-Bohm pilot-wave theory, represents a deterministic and nonlocal interpretation of quantum mechanics. Since its origination in 1927, despite many attempts, reconciling it with relativistic theory a...