Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Super-Heisenberg-limited Sensing via Collective Subradiance in Waveguide QED
Xin Wang, Zeyang Liao·Dec 16, 2025
We explore the quantum-metrological potential of subwavelength-spaced emitter arrays coupled to a one-dimensional nanophotonic waveguide. In this system, strong dipole--dipole interactions profoundly modify the collective optical response, leading to...
Adiabatic-Inspired Hybrid Quantum-Classical Methods for Molecular Ground State Preparation
Sean Thrasher, Ioannis Kolotouros, Julien Michel +1 more·Dec 16, 2025
Quantum computing promises to efficiently and accurately solve many important problems in quantum chemistry which elude classical solvers, such as the electronic structure problem of highly correlated materials. Two leading methods in solving the gro...
Ground State Energy via Adiabatic Evolution and Phase Measurement for a Molecular Hamiltonian on an Ion-Trap Quantum Computer
Ludwig Nützel, Michael J. Hartmann, Henrik Dreyer +1 more·Dec 16, 2025
Estimating molecular ground-state energies is a central application of quantum computing, requiring both the preparation of accurate quantum states and efficient energy readout. Understanding the effect of hardware noise on these experiments is cruci...
Capacity and SKR tradeoff in coexisting classical and CV-QKD metropolitan-reach optical links
Cagla Ozkan, Lucas Alves Zischler, Kadir Gumus +3 more·Dec 16, 2025
We demonstrate power-regime-dependent guardband optimization for quantum-classical coexistence in metropolitan DWDM. Quantum channel at band-edge with 100-150 GHz guardbands achieves 108% SKR improvement at -1.5 dBm/ch, incurring 3.4% capacity loss v...
Hybrid acousto-optical spin control in quantum dots
Mateusz Kuniej, Paweł Machnikowski, Michał Gawełczyk·Dec 16, 2025
Mechanical degrees of freedom very weakly couple to spins in semiconductors. The inefficient coupling between phonons and single electron spins in semiconductor quantum dots (QDs) hinders their integration into on-chip acoustically coupled quantum hy...
Geometric quantum thermodynamics: A fibre bundle approach
T. Pernambuco, L. C. Céleri·Dec 16, 2025
Classical thermodynamics is a theory based on coarse-graining, meaning that the thermodynamic variables arise from discarding information related to the microscopic features of the system at hand. In quantum mechanics, however, where one has a high d...
Steering Alternative Realities through Local Quantum Memory Operations
Xiongfeng Ma·Dec 16, 2025
Quantum measurement resolves a superposition into a definite outcome by correlating it with an observer's memory -- a reality register. While the global quantum state remains coherent, the observer's local reality becomes singular and definite. This ...
Self-referenced nonlinear interferometry for chromatic dispersion sensing across multiple length scales
Romain Dalidet, Sébastien Tanzilli, Gregory Sauder +2 more·Dec 16, 2025
Chromatic dispersion critically impacts the performance of numerous applications ranging from telecommunication links to ultrafast optics and nonlinear devices, yet fast and precise measurements are challenging, especially for short length-dispersion...
Another 100 Years of Quantum Interpretation?
Karen Crowther·Dec 16, 2025
Interpretation is not the only way to explain a theory's success, form and features, and nor is it the only way to solve problems we see with a theory. This can also be done by giving a reductive explanation of the theory, by reference to a newer, mo...
Intrinsic Mirror Symmetry and Robustness of Optimal Nonlocal Operators in One-Dimensional Quantum Spin Chains
Jia Bao, Bin Guo, Shu Qu +3 more·Dec 16, 2025
Multipartite nonlocality has been extensively investigated within one-dimensional quantum lattices. Previous research has primarily focused on the nonlocality measure $S$, which quantifies the violation of Bell-type inequalities. However, the optimal...
General Quantum Instruction for Communication via Maximally Entangled $n$-Qubit States
Saba Arife Bozpolat·Dec 16, 2025
This study presents a generalized $n$-bit superdense coding protocol that enables the transmission of n classical bits of information using an entangled n--qubit quantum system and the transmission of $n-1$ qubits. The protocol involves creating a ma...
Engineering Anisotropic Rabi Model in Circuit QED
S. Mojtaba Tabatabaei, Babak Zare Rameshti, Mohsen Akbari·Dec 16, 2025
The anisotropic Rabi model (ARM), which features tunable Jaynes-Cummings (JC) and anti-Jaynes-Cummings (AJC) interactions, has remained challenging to realize fully. We present a circuit QED implementation that provides static control over the ARM pa...
Dipolar quantum gases: from 3D to Low dimensions
Yifei He, Haoting Zhen, Gyu-Boong Jo·Dec 16, 2025
Dipolar quantum gases, encompassing atoms and molecules with significant dipole moments, exhibit unique long-range and anisotropic dipole-dipole interactions (DDI), distinguishing them from systems dominated by short-range contact interactions. This ...
Information-efficient decoding of surface codes
Long D. H. My, Shao-Hen Chiew, Jing Hao Chai +1 more·Dec 16, 2025
Surface codes are a popular error-correction route to fault-tolerant quantum computation. The so-called exponential backlog problem that can arise when one has to do logical $T$-gates within the surface code demands real-time decoding of the syndrome...
Analogue gravity with Bose-Einstein condensates
Adrià Delhom, Luca Giacomelli·Dec 16, 2025
Analogue gravity explores how collective excitations in condensed matter systems can reproduce the behavior of fields in curved spacetimes. An important example is the acoustic black holes that can occur for sound in a moving fluid. In these lecture ...
Quantum Machine Learning for Climate Modelling
Mierk Schwabe, Lorenzo Pastori, Valentina Sarandrea +1 more·Dec 16, 2025
Quantum machine learning (QML) is making rapid progress, and QML-based models hold the promise of quantum advantages such as potentially higher expressivity and generalizability than their classical counterparts. Here, we present work on using a quan...
Cosmic Lockdown: When Decoherence Saves the Universe from Tunneling
Robson Christie, Jaewoo Joo, Greg Kaplanek +2 more·Dec 16, 2025
We investigate how quantum decoherence influences the tunneling dynamics of quantum fields in cosmological spacetimes. Specifically, we study a scalar field in an asymmetric double-well potential during inflation, coupled to environmental degrees of ...
Acoustic horizons and the Hawking effect in polariton fluids of light
Elisabeth Giacobino, Maxime J. Jacquet·Dec 16, 2025
These lecture notes develop polariton fluids of light as programmable simulators of quantum fields on tailored curved spacetimes, with emphasis on acoustic horizons and the Hawking effect. After introducing exciton-polariton physics in semiconductor ...
Discrete time crystals enabled by Floquet strong Hilbert space fragmentation
Ling-Zhi Tang, Xiao Li, Z. D. Wang +1 more·Dec 16, 2025
Discrete time crystals (DTCs) are non-equilibrium phases of matter that break the discrete time-translation symmetry and is characterized by a robust subharmonic response in periodically driven quantum systems. Here, we explore the DTC in a disorder-...
Towards Explainable Quantum AI: Informing the Encoder Selection of Quantum Neural Networks via Visualization
Shaolun Ruan, Feng Liang, Rohan Ramakrishna +5 more·Dec 16, 2025
Quantum Neural Networks (QNNs) represent a promising fusion of quantum computing and neural network architectures, offering speed-ups and efficient processing of high-dimensional, entangled data. A crucial component of QNNs is the encoder, which maps...