Papers
Live trends in quantum computing research, updated daily from arXiv.
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Momentum Squeezed State Realized via Optimal Filtering in Optomechanics: Implications for Gravity-Induced Entanglement
Ryotaro Fukuzumi, Kosei Hatakeyama, Daisuke Miki +1 more·Aug 20, 2025
We analyze the conditional quantum state of a mechanical mirror in an optomechanical system subject to continuous measurement, feedback control, and quantum filtering. We identify a parameter regime in which the mirror exhibits momentum squeezing bey...
Quantum reservoir computing induced by controllable damping
Emanuele Ricci, Francesco Monzani, Luca Nigro +1 more·Aug 20, 2025
Quantum reservoir computing has emerged as a promising machine learning paradigm for processing temporal data on near-term quantum devices, as it allows for exploiting the large computational capacity of the qubits without suffering from typical issu...
Dynamic syndrome decoder in volume-law phases of hybrid quantum circuits
Dawid Paszko, M. Szyniszewski, Arijeet Pal·Aug 18, 2025
Phases of matter with volume-law entanglement are frequently observed in quantum circuits and have numerous applications, ranging from deepening our understanding of quantum mechanics to advancements in quantum computing and cryptography. Their capac...
Driven-Dissipative Interpretation of Measurement-Induced State Transitions Beyond Semiclassical Predictions
Bo-Syun Pan, Yen-Hsiang Lin, Chiao-Hsuan Wang·Aug 18, 2025
Dispersive readout plays a central role in superconducting quantum computing, enabling quantum nondemolition (QND) measurements of qubits through a coupled microwave resonator. However, under strong readout drives, multi-photon resonances can cause m...
Simulating Mass-Dependent Decoherence in Quantum Computers: Baseline Signatures for Testing Gravity-Induced Collapse
V. Balaji, Samuel Punch·Aug 14, 2025
We present a quantum computing simulation study of mass-dependent decoherence models inspired by Penrose's gravity-induced collapse hypothesis. According to objective reduction (OR) theory, quantum superpositions become unstable when the gravitationa...
Quantum Parrondo Paradox via a Single Phase Defect Symmetry Breaking and Directed Transport
Jen-Yu Chang, Yun-Hsuan Chen, Gooi Zi Liang +2 more·Aug 13, 2025
Parrondo paradox describes the counterintuitive phenomenon in which alternating two individually losing games yields a winning outcome. Extending this effect to the quantum regime has typically required high dimensional coin spaces, entangled initial...
Bridging Theory and Practice in Quantum Game Theory: Optimized Implementation of the Battle of the Sexes with Error Mitigation on NISQ Hardware
Germ'an D'iaz Agreda, Carlos Andrés Duran Paredes, Mateo Buenaventura Samboni +2 more·Aug 12, 2025
Implementing quantum game theory on real hardware is challenging due to noise, decoherence, and limited qubit connectivity, yet such demonstrations are essential to validate theoretical predictions. We present one of the first full experimental reali...
On the relationship between noise squeezing and Rabi oscillations in active quantum dot ensembles
Ori Gabai, Amnon Willinger, Igor Khanonkin +3 more·Aug 11, 2025
Squeezed light is usually generated using passive nonlinear materials. Semiconductor lasers and optical amplifiers (SOAs) also offer nonlinearities but they differ in that they add amplified spontaneous emission (ASE). Squeezing to below the vacuum l...
Master Equation for a Quantum Gas of Polarizable Particles in Cavities
Tom Schmit, Catalin-Mihai Halati, Tobias Donner +2 more·Aug 11, 2025
Quantum gases of atoms and molecules in optical cavities offer a formidable laboratory for studying the out-of-equilibrium dynamics of open quantum systems with long-range interactions. Long-range interactions are here mediated by multiple scattering...
Memory Effects and Entanglement Dynamics of Finite time Acceleration
Nitesh K. Dubey, Sanved Kolekar·Aug 11, 2025
We construct a smooth trajectory in Minkowski spacetime that is inertial in the asymptotic past and future but undergoes approximately uniform acceleration for a finite duration. In a suitable limit, this trajectory reduces to the standard Rindler tr...
Spin Phonon Coupling and Relaxation time in Lu(II) compound with 9.2GHz clock transition
Xiaoliang Zhang, Haechan Park·Aug 11, 2025
Electron spin qubits operating at atomic clock transitions exhibit exceptionally long coherence times, making them promising candidates for scalable quantum information applications. In solid-state systems, interactions between qubits and lattice pho...
Universally Robust Control of Open Quantum Systems
Lixiang Ding, Jingtao Fan, Xingze Qiu·Aug 10, 2025
Mitigating noise-induced decoherence is the central challenge in controlling open quantum systems. While existing robust protocols often require precise noise models, we introduce a universal framework for noise-agnostic quantum control that achieves...
Quantum Estimation with State Symmetry-Induced Optimal Measurements
Jia-Xuan Liu, Hai-Long Shi, Chunfeng Wu +1 more·Aug 10, 2025
A central challenge in quantum metrology is identifying optimal measurements that saturate the quantum Cramer-Rao bound under realistic constraints, e.g., local measurements. We show that symmetries of the probe state provide a general principle for ...
Chern junctions in Moiré-Patterned Graphene/PbI2
Sun Yan, M. Monteverde, V. Derkach +5 more·Aug 6, 2025
Expanding the moire material library continues to unlock novel quantum phases and emergent electronic behaviors. Here, we introduce PbI2 into the moire family and investigate the magnetotransport properties of moire superlattice in a hexagonal boron ...
Noninvasive and nonadiabatic quantum Maxwell demon
Lucas Trigal, Rafael Sánchez·Aug 5, 2025
A quantum mechanical Maxwell demon is proposed in a quantum dot setting. The demon avoids continuous-measurement induced decoherence by exploiting an undetailed charge detector. The control of coherent tunneling via Landau-Zener-Stückelberg-Majorana ...
Characterizing and Mitigating Flux Crosstalk in Superconducting Qubits-Couplers System
Myrron Albert Callera Aguila, Nien-Yu Li, Chen-Hsun Ma +12 more·Aug 5, 2025
Superconducting qubits have achieved exceptional gate fidelities, exceeding the error-correction threshold in recent years. One key ingredient of such improvement is the introduction of tunable couplers to control the qubit-to-qubit coupling through ...
Theoretical Study of the Squeezed-Light-Enhanced Sensitivity to Gravity-Induced Entanglement via Finite-Time Analysis
Kosei Hatakeyama, Daisuke Miki, Kazuhiro Yamamoto·Aug 2, 2025
We investigate the advantage of using squeezed input light for generating gravity-induced entanglement (GIE) through Fourier-domain analysis. Based on the findings of Ref.~\cite{Miki2024}, which demonstrated the feasibility of detecting GIE in optome...
Enhancement of non-Markovianity due to environment-induced indirect interaction
Asif Zaman, Muhammad Faryad, Adam Zaman Chaudhry·Aug 1, 2025
Non-Markovian effects are often significant when the system-environment coupling is not weak. Indeed, we find that the non-Markovianity is negligible for a single two-level system undergoing pure dephasing via a weak interaction with a harmonic-oscil...
Nonclassical microwave radiation from the parametric dynamical Casimir effect in the reversed-dissipation regime of circuit optomechanics
H. Solki, A. Motazedifard, M. Naderi +2 more·Aug 1, 2025
We propose an experimentally feasible optomechanical system (OMS) that is dispersively driven and operates in the reversed dissipation regime (RDR), where the mechanical damping rate far exceeds the cavity decay rate. We demonstrate that coherent, fa...
Field digitization scaling in a $\mathbb{Z}_N \subset U(1)$ symmetric model
Gabriele Calliari, Robert Ott, Hannes Pichler +1 more·Jul 30, 2025
The simulation of quantum field theories, both classical and quantum, requires regularization of infinitely many degrees of freedom. However, in the context of field digitization (FD) -- a truncation of the local fields to $N$ discrete values -- a co...