Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Surpassing Gaussian optimality in multiparameter estimation with indefinite causal order
Sudipta Das, Rivu Gupta, Aditi Sen De +1 more·Aug 26, 2026
We identify single-mode Gaussian probes, generated by displacement and squeezing operations on the vacuum state, which are optimal for the simultaneous estimation of displacement and squeezing operations in continuous-variable quantum systems. Import...
Light-Hole Spin Qubits in Strained SiGe Lattice-Matched to Ge
Edmondo Valvo, Davide Costa, Patrick Del Vecchio +3 more·Aug 26, 2026
Strained germanium ($\varepsilon$-Ge) quantum wells on metamorphic SiGe buffers have enabled advanced hole-based spin qubit devices. Alternatively, unstrained Ge with lattice-matched strained silicon-germanium ($\varepsilon$-SiGe) barriers eliminates...
Enhanced quantum metrology with robust multipass interferometry
Sayak Mukherjee, José Afonso Oliveira, Sean William Moore +1 more·Aug 26, 2026
Quantum metrology typically uses entangled states to achieve measurement precisions beyond the standard quantum limit. The advantage increases with the size of the entangled state, however generating and preserving large entangled states remains a ma...
Fast-forwarding quantum algorithms for weakly nonlinear dissipative differential equations and beyond
Yixiang Li, Dong An·Aug 26, 2026
We study a fast-forwarded quantum algorithm for solving weakly nonlinear dissipative ordinary differential equations. Our approach is a combination of the Carleman embedding technique and the linear combination of Hamiltonian simulation algorithm for...
Fate of the non-Abelian Moore-Read manifold under the non-Hermitian skin effect
Jiaxuan Guo, Simin Nie, Xiting Zhang +1 more·Aug 26, 2026
We study a non-Abelian Moore-Read fractional Chern insulator under a translation-preserving, nonreciprocal deformation that generates the non-Hermitian skin effect under open boundaries. The model combines the imaginary-gauge Hatano-Nelson deformatio...
Simultaneous Digital Communication and Deformation Sensing over a Single Stretchable Interconnect
Yuji Isano, Hiroki Ota·Aug 26, 2026
Stretchable hybrid electronics integrate rigid solid-state electronics with stretchable materials and structures to achieve both high deformability and stable electronic performance. However, most existing systems treat stretchability only as a mecha...
The View from Within: What Can Embedded Observers (Not) Learn?
Tomáš Gonda, Johannes Fankhauser, Gemma De les Coves·Aug 26, 2026
Physics is usually done from a third-person perspective, as if the world were described from outside. Yet, observers are themselves physical systems within the world they observe. Here, we investigate this tension using a toy model of classical parti...
Fault-tolerant $|\sqrt{ \mathrm{T} }\rangle$ state preparation and injection for more efficient fine-grained quantum circuit synthesis
Berat Yenilen, Markus Müller, Manuel Rispler·Aug 26, 2026
Magic-state injection is a standard route to realize universal fault-tolerant quantum computation. Whereas the set of Clifford gates in combination with the non-Clifford T gate is a widely used universal gate set, extending the available set of non-C...
Quantum sampling in hybrid light-matter systems with mixed statistics
Franziska Barkhausen, Laura Ares, Stefan Schumacher +1 more·Aug 26, 2026
Boson sampling is one of the most prominent methods to verify quantum advantage, harnessing the computational complexity of the permanent of a network matrix. Similar quantum sampling problems utilize other expressions for the output probabilities, s...
Update Disturbance-Resilient Analog ReRAM Crossbar Arrays for In-Memory Deep Learning Accelerators
Wooseok Choi, Tommaso Stecconi, Donato Francesco Falcone +14 more·Aug 26, 2026
Resistive memory (ReRAM) technologies with crossbar array architectures hold significant potential for analog AI accelerator hardware, enabling both in-memory inference and training. Recent developments have successfully demonstrated inference accele...
Study of Resistive Switching Dynamics and Memory States Equilibria in Analog Filamentary Conductive-Metal-Oxide/HfOx ReRAM via Compact Modeling
Matteo Galetta, Donato Francesco Falcone, Victoria Clerico +7 more·Aug 26, 2026
Resistive Random Access Memory (ReRAM) devices offer a promising solution for next-generation non-volatile memory and neuromorphic computing systems. Yet, existing compact models fail to capture analog resistive switching behavior of ReRAM devices. T...
The Geometric Phase as a Diagnostic for Driven-Dissipative Oscillators
Zeen Sun, Yuan Shen, Haitao Ding +2 more·Aug 26, 2026
Driven-dissipative quantum oscillators lock their phase, deform their limit cycles, and undergo dissipative phase transitions, yet these behaviors are read from unrelated quantities defined on the same steady-state density matrix. We show that a sing...
Physics-informed quantum algorithms for glueball-like excitations in a $\mathbb{Z}_2$ lattice gauge theory
Dan-Bo Zhang·Aug 26, 2026
Glueball spectroscopy with quantum computing requires both a correlated gauge vacuum and a systematic construction of its low-lying pure-gauge excitations. We develop a physics-informed quantum-computing framework for these tasks in a $(2+1)$-dimensi...
Quantum motility-induced phase separation
Laurin Brunner, Ricard Alert, Reyhaneh Khasseh +1 more·Aug 26, 2026
Motility-induced phase separation (MIPS) describes a central clustering phenomenon in active matter systems where particles spontaneously separate into dense and dilute phases even in the absence of interparticle attractive forces. Recent theoretical...
Phase-sensitive cascade quantum amplifier with nearly noiseless operation
Ilari Lilja, Ekaterina Mukhanova, Michael Perelshtein +5 more·Aug 26, 2026
Phase-sensitive parametric devices enable quadrature-selective amplification with the potential for sub-quantum-limited noise performance. In this work, we investigate the operation of a SQUID-based Josephson Parametric Amplifier (JPA), comparing its...
GNSS-free quantum gravity-aided navigation and fine-scale marine surveying with a strapdown quantum gravimeter
Patrick J. Everitt, Donald H. White, Todd Lyon +19 more·Aug 26, 2026
Global navigation satellite systems (GNSS) are often disrupted or unavailable at sea, and unaided inertial navigation systems (INS) drift without correction. Quantum-sensing-based gravity map matching offers a passive, infrastructure-free aid, but fi...
Certified decoding of quantum LDPC codes
Ragavi Krishnamoorthy, Florian Gerhardt, Johannes Knaute +8 more·Aug 26, 2026
Quantum low-density parity-check (qLDPC) codes reduce the qubit overhead of fault-tolerant quantum computation by an order of magnitude, but their decoding is harder than its classical counterpart: because many physical errors are equivalent up to st...
A universal loss-limited optimum for fixed multi-pass quantum sensing per absorbed photon
Christoph F. Wildfeuer·Aug 26, 2026
Multi-pass schemes send a photon through a sample several times to learn more about it. When the sample rather than the light is scarce, the natural figure of merit is the information gained per photon the object absorbs. We show that one constant fi...
Superextensive learning in quantum reservoirs at the onset of information scrambling
Jonas Freiheit, Francesco Campaioli·Aug 26, 2026
The idea that information processing is optimised near the boundary between order and chaos has emerged as a recurring principle across neuroscience, complex systems, and machine learning. Here we test this hypothesis in quantum many-body systems, nu...
High-Fidelity Entangled States in a Connectivity-Four Fluxonium Quantum Processor
J. Schirk, N. Bruckmoser, S. M. Taubenberger +10 more·Aug 26, 2026
A central challenge in fluxonium-based quantum processors is the extension of the qubit connectivity to two-dimensional lattices compatible with quantum code-error correction. Here, we present a fluxonium quantum processor that employs lumped-element...