Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Experimental implementation of a discrete-time quantum walk on biological networks
Viacheslav Dubovitskii, Filippo Utro, Aritra Bose +3 more·Feb 27, 2026
Quantum walks provide a versatile framework for probing the structural and dynamical properties of complex systems ranging from biological networks to synthetic materials. However, their realization on current noisy pre-fault-tolerant quantum compute...
Saturable nonlinearities in a driven-dissipative bosonic quantum battery
João P. R. Leonel, Paulo A. Brandão·Feb 27, 2026
We investigate the charging of a nonlinear quantum battery consisting of a single bosonic mode subject to a saturable nonlinearity, coherent driving, and dissipation. In contrast to Kerr-type anharmonicities, the saturable interaction induces a bound...
Exact Anomalous Current Fluctuations in Quantum Many-Body Dynamics
Kazuya Fujimoto, Taiki Ishiyama, Taiga Kurose +2 more·Feb 27, 2026
Fluctuations of integrated currents have attracted considerable interest over the past decades in the context of statistical mechanics. Recently, anomalous current fluctuations, characterized by the M-Wright function, were obtained exactly in a class...
Fulde-Ferrell superfluids in an asymmetric three-component Fermi Gas
Yuhan Lu, Lihong Zhou, Yongping Zhang·Feb 27, 2026
An asymmetric three-component Fermi gas, featuring Raman-induced spin-orbit coupling between the first and second components and contact interaction only between the first and third components, introduces both spin-orbit coupling and population imbal...
3D Integrated Embedded Filters for Superconducting Quantum Circuits
Waqas Ahmad, Gioele Consani, Mohammad Tasnimul Haque +2 more·Feb 27, 2026
Microwave filtering for superconducting qubits is a key element of quantum computing technology, enabling high coherence and fast state detection. This work presents the design and implementation of novel microwave Purcell filters for superconducting...
Large-scale portfolio optimization on a trapped-ion quantum computer
Alejandro Gomez Cadavid, Ananth Kaushik, Pranav Chandarana +10 more·Feb 27, 2026
We present an end-to-end pipeline for large-scale portfolio selection with cardinality constraints and experimentally demonstrate it on trapped-ion quantum processors using hardware-aware decomposition. Building on RMT-based correlation-matrix denois...
Coherent Control of Population and Quantum Coherence in Superconducting Circuits
Madan Mohan Mahana, Gunjan Yadav, Tarak Nath Dey·Feb 27, 2026
Quantum mechanics, with its counterintuitive principles and probabilistic nature, has long been confined to the microscopic realm of atoms and photons. Yet, recent breakthroughs have pushed the boundaries of quantum behavior into the macroscopic worl...
Effect of electron-electron interactions on the propagation of ultrashort voltage pulses in a Mach-Zehnder interferometer
Prasoon Kumar, Thomas Kloss, Xavier Waintal·Feb 27, 2026
Electronic interferometers have been identified as possible candidates for building electronic flying qubits. Such a regime requires ultrafast voltage pulses whose duration is shorter than the time of flight through the device. Understanding the corr...
Continuous-Time Quantum Walk on Locally Infinite Graph
Ce Wang·Feb 27, 2026
Time-reversal symmetry is of fundamental importance to physics. In the classical theory of time-reversal symmetry, the time-reversal symmetry of a quantum system is described by an anti-unitary operator, which is known as the time-reversal operator o...
The temporal picture for Bloch electron dynamics in homogeneous electric fields
G. J. Iafrate, V. N. Sokolov·Feb 27, 2026
The transient picture for a Bloch electron accelerating in an arbitrarily time-dependent homogeneous electric field is developed. The temporal sequence for the analysis includes the instant after electron injection, followed by the time required for ...
Orbitally resolved single-photon emission from an individual atomic vacancy center in a semiconductor
Gagandeep Singh, Xiaodan Lyu, Bi Qi Chong +11 more·Feb 27, 2026
Atomically confined spins are emerging as active components in quantum optoelectronic devices such as quantum bits and sensors. However, interrogating single spins at atomic length-scales remains a sizeable challenge, limited by diffraction in conven...
Characterization of Josephson Junction Aging and Annealing Under Different Environments
Rangga P. Budoyo, Rasanayagam S. Kajen, Bing Wen Cheah +2 more·Feb 27, 2026
Understanding the aging behavior of Josephson junctions and the effect of annealing on junction resistances is important in building large-scale superconducting quantum processors. Here we study the effects of aging of Josephson junctions under diffe...
Four Party Absolutely Maximal Contextual Correlations
Nripendra Majumdar·Feb 27, 2026
The Kochen Specker theorem revealed contextuality as a fundamental nonclassical feature of nature. Nonlocality arises as a special case of contextuality, where entangled states shared by space like separated parties exhibit nonlocal correlations. The...
Non-commutative Index of Measurement-only Entanglement Phase Transition
Zhichen Huang, Chunxiao Du, Yang Zhou +1 more·Feb 27, 2026
Measurement-only models offer an ideal platform for exploring entanglement dynamics in the absence of unitary evolution. Despite extensive numerical evidence for entanglement phase transitions in measurement-only dynamics, the underlying mechanism at...
Supermaps on generalised theories
Matt Wilson, James Hefford, Timothée Hoffreumon·Feb 27, 2026
Categorical supermaps generalise higher-order quantum operations from finite-dimensional quantum theory to arbitrary circuit theories. In this paper, we establish the Yoneda lemma for categorical supermaps, which states that whenever a physical theor...
MAFFT-inspired Quantum Shift-based Sequence Alignment and its Efficient Simulation on Decision Diagrams
Yusuke Kimura, Yutaka Takita·Feb 27, 2026
Multiple sequence alignment (MSA) is a core operation for comparing genome sequences and is widely used in bio-informatics. MAFFT, a practical MSA tool, repeatedly shifts a pair of sequences and computes a distance. Because the number of sequence pai...
Local Equivalence Classes of Distance-Hereditary Graphs using Split Decompositions
Nicholas Connolly, Shin Nishio, Kae Nemoto·Feb 27, 2026
Local complement is a graph operation formalized by Bouchet which replaces the neighborhood of a chosen vertex with its edge-complement. This operation induces an equivalence relation on graphs; determining the size of the resulting equivalence class...
Entanglement dynamics for atoms near a reflecting boundary: enhancement and suppression by environment-induced interactions
Ying Chen, Hongwei Yu, Jiawei Hu·Feb 27, 2026
We investigate how environment-induced interactions influence the entanglement dynamics of two static atoms placed near a perfectly reflecting boundary. In this setting, the environment-induced interactions include both atom-boundary contributions (p...
A new class of coherent states involving Fox-Wright functions and their generalization in the bicomplex framework
Snehasis Bera, Sourav Das, Abhijit Banerjee·Feb 27, 2026
In this work, an extensive class of coherent states is introduced by taking the Fox Wright function as the normalization function. It is demonstrated that these states satisfy the key requirements of continuity, normalizability and resolution of unit...
Spin stiffness and resilience phase transition in a noisy toric-rotor code
Morteza Zarei, Mohammad Hossein Zarei·Feb 27, 2026
We use a quantum formalism for the partition function of the classical $XY$ model to identify a resilience phase transition in a noisy toric-rotor code. Specifically, we consider the toric-rotor code under phase-shift noise described by a von Mises p...