Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,881
This Month
1,306
Today
0
Research Volume
13,145 papers in 12 months (+1% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Skyrmion Quantum Diode Prototype: Bridging Micromagnetic Simulations and Quantum Models
Haowen Yang, Gerald Bissell, Han Zhong +4 more·Jan 16, 2026
Magnetic skyrmions are topologically protected spin textures known for their robustness against perturbations. Their topological stability makes them robust information carriers, ideal for tackling a key challenge in quantum computing: creating relia...
Dressed-state relaxation in coupled qubits as a source of two-qubit gate errors
Ruixia Wang, Jiayu Ding, Chenlu Wang +8 more·Jan 16, 2026
Understanding error mechanisms in two-qubit gate operations is essential for building high-fidelity quantum processors. While prior studies predominantly treat dephasing noise as either Markovian or predominantly low-frequency, realistic qubit enviro...
Controlled Parity of Cooper Pair Tunneling in a Hybrid Superconducting Qubit
David Feldstein-Bofill, Leo Uhre Jacobsen, Ksenia Shagalov +9 more·Jan 16, 2026
Superconducting quantum circuits derive their nonlinearity from the Josephson energy-phase relation. Besides the fundamental $\cosφ$ term, this relation can also contain higher Fourier harmonics $\cos(kφ)$ corresponding to correlated tunneling of $k$...
Microscopic quantum description of surface plasmon polaritons: revealing intrinsic ultrastrong light-matter coupling
Florian Maurer, Thomas F. Allard, Yanko Todorov +2 more·Jan 16, 2026
We develop a microscopic quantum theory of surface plasmon polaritons valid for arbitrary metal-dielectric geometries. Our framework is based on the Power-Zienau-Woolley representation of quantum electrodynamics, which provides an optimal separation ...
Shortcuts to adiabaticity, unexciting backgrounds, and reflectionless potentials
Fernando C. Lombardo, Francisco D. Mazzitelli·Jan 16, 2026
We analyze shortcuts to adiabaticity (STA) and their completions for the quantum harmonic oscillator (QHO) with time-dependent frequency, as well as for quantum field theory (QFT) in non-stationary backgrounds. We exploit the analogy with one-dimensi...
Concatenated continuous driving of silicon qubit by amplitude and phase modulation
Takuma Kuno, Takeru Utsugi, Andrew J. Ramsay +22 more·Jan 16, 2026
The rate of coherence loss is lower for a qubit under Rabi drive compared to a freely evolving qubit, $T_{2}^{\rm{Rabi}}>T_{2}^*$. Building on this principle, concatenated continuous driving (CCD) keeps the qubit under continuous drive to suppress no...
Experimental study of coupled quantum billiards with integrable and chaotic classical dynamics and test of a special Rosenzweig-Porter model
Xiaodong Zhang, Jiongning Che, Barbara Dietz·Jan 16, 2026
We report on the experimental study of the spectral properties of quantum systems consisting of two quantum billiards (QBs), one with chaotic, the other one with integrable classical dynamics, that are coupled to each other via an opening in a common...
From three-body resonances to bound states in a continuum: pole trajectories
Lucas Happ·Jan 16, 2026
We investigate the formation of three-body bound states in the continuum by tracing pole trajectories in the complex energy plane under variation of system parameters. Using a one-dimensional model of two identical bosons and a distinguishable partic...
UAV-Deployed OAM-BB84 QKD: Turbulence- and Misalignment-Resilient Decoy-State Finite-Key Security with AI-Assisted Calibration
Linxier Deng·Jan 16, 2026
We present a theoretical framework for quantum key distribution (QKD) using orbital angular momentum (OAM) encoded BB84 on an unmanned aerial vehicle (UAV) platform. A unified channel model captures Kolmogorov turbulence, pointing induced misalignmen...
Converting qubit relaxation into erasures with a single fluxonium
Chenlu Liu, Yulong Li, Jiahui Wang +9 more·Jan 16, 2026
Qubits that experience predominantly erasure errors offer distinct advantages for fault-tolerant operation. Indeed, dual-rail encoded erasure qubits in superconducting cavities and transmons have demonstrated high-fidelity operations by converting ph...
Certifying entanglement dimensionality by random Pauli sampling
Changhao Yi·Jan 16, 2026
We introduce a Pauli-measurement-based algorithm to certify the Schmidt number of $n$-qubit pure states. Our protocol achieves an average-case sample complexity of $\caO(\mathrm{poly}(n)χ^2)$, a substantial improvement over the $\caO(2^n χ)$ worst-ca...
Off-resonant preservation and generation of imaginarity in distributed scenarios
Si-Min Wang, Ming-Liang Hu, Heng Fan·Jan 16, 2026
We study the nonlocal advantage of quantum imaginarity (NAQI) and distillable imaginarity of assistance (DIA), which treat imaginarity as a resource in distributed scenarios. For two qubits interacting with a lossy cavity, it is shown that both the N...
Noise-Aware Quantum Architecture Search Based on NSGA-II Algorithm
Chenlu Li, Hui Zeng, Dazhi Ding·Jan 16, 2026
Quantum architecture search (QAS) has emerged to automate the design of high-performance quantum circuits under specific tasks and hardware constraints. We propose a noise-aware quantum architecture search (NA-QAS) framework based on variational quan...
Stabilizer Code-Generic Universal Fault-Tolerant Quantum Computation
Nicholas J. C. Papadopoulos, Ramin Ayanzadeh·Jan 16, 2026
Fault-tolerant quantum computation allows quantum computations to be carried out while resisting unwanted noise. Several error-correcting codes have been developed to achieve this task, but none alone are capable of universal quantum computation. Thi...
Faithful Simulation of Broadcast Measurements
Anders Høst-Madsen·Jan 16, 2026
In this paper a central server Charlie has access to a quantum system C and measures it with a POVM $\{Λ_x\}$. Alice and Bob are only interested in the partial results $g_A(x)$ respectively $g_B(x)$. Alice, Bob, and Charlie share common randomness an...
The two-time Leggett-Garg inequalities of a superconducting qubit interacting with thermal photons in a cavity
Hiroo Azuma·Jan 16, 2026
In this paper, we study the two-time Leggett-Garg (LG) inequalities of a quantum optical model that appears in the Josephson-junction quantum bit (qubit) interacting with an external magnetic flux. This model is a natural extension of an exactly solv...
The Hilbert-Schmidt norms of quantum channels and matrix integrals over the unit sphere
Yuan Li, Zhengli Chen, Zhihua Guo +1 more·Jan 16, 2026
The dynamics of quantum systems are generally described by a family of quantum channels (linear, completely positive and trace preserving maps). In this note, we mainly study the range of all possible values of $\|\mathcal{E}\|_2^2+\|\widetilde{\math...
Quantum trajectories for time-binned data and their closeness to fully conditioned quantum trajectories
Nattaphong Wonglakhon, Areeya Chantasri, Howard M. Wiseman·Jan 16, 2026
Quantum trajectories are dynamical equations for quantum states conditioned on the results of a time-continuous measurement, such as a continuous-in-time current $\vec y_t$. Recently there has been renewed interest in dynamical maps for quantum traje...
Two-tooth bosonic quantum comb for temporal-correlation sensing
Shaojiang Zhu, Xinyuan You, Alexander Romanenko +1 more·Jan 16, 2026
We introduce a two-tooth bosonic quantum comb that captures the sequential interactions between a thermal absorber and a long-lived coherent probe. The comb provides a causal, multi-time description of coherence transport, tracking how the probe reco...
An algebraic description of the Page transition
Haocheng Zhong·Jan 16, 2026
In this work, we develop an algebraic description of the Page transition, a key feature in black hole evaporation where the entropy of Hawking radiation follows a unitary Page curve instead of monotonically increasing. By applying concepts from appro...