Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,694
This Month
1,159
Today
0
Research Volume
13,008 papers in 12 months (-3% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Deterministic Generation of Arbitrary Fock States via Resonant Subspace Engineering
Shan Jin, Ming Li, Weizhou Cai +10 more·Feb 12, 2026
Deterministic preparation of high-excitation Fock states is a central challenge in bosonic quantum information, with control complexity that generically explodes as the Hilbert space dimension grows. Here we introduce resonant subspace engineering (R...
Realization of a cavity-coupled Rydberg array
Jacopo De Santis, Balázs Dura-Kovács, Mehmet Öncü +3 more·Feb 12, 2026
Scalable quantum computers and quantum networks require the combination of quantum processing nodes with efficient light-matter interfaces to distribute quantum information in local or long-distance quantum networks. Neutral-atom arrays have both bee...
Spin networks of quantum channels
Bartosz Grygielski, Jakub Mielczarek·Feb 12, 2026
Spin networks in Loop Quantum Gravity are traditionally described by unitary holonomies corresponding to noiseless transformations. In this work, we extend this framework to incorporate general quantum channels that model effects of environment, whic...
Protocols for a many-body phase microscope: From coherences and d-wave superconductivity to Green's functions
Christof Weitenberg, Luca Asteria, Ola Carlsson +2 more·Feb 12, 2026
Quantum gas microscopes probe quantum many-body lattice states via projective measurements in the occupation basis, enabling access to various density and spin correlations. Phase information, however, cannot be directly obtained in these setups. Rec...
Hierarchy of saturation conditions for multiparameter quantum metrology bounds
Satoya Imai, Jing Yang, Luca Pezzè·Feb 12, 2026
The quantum Cramér-Rao (QCR) bound sets the ultimate local precision limit for unbiased multiparameter estimation. Yet, unlike in the single-parameter case, its saturability is not generally guaranteed and is often assessed through commutativity-base...
Unconditional full vector magnetometry using spin selectivity in Nitrogen Vacancy centers in diamond
Asier Mongelos-Martinez, Jason Tarunesh Francis, Julia Bertero-DiTella +3 more·Feb 12, 2026
Quantum sensors based on nitrogen vacancy (NV) centers in diamond have been a central topic in the sensing community for more than a decade. The extraordinary properties at room temperature of the spin system in diamond have made it one of the most p...
Probing near-field EM fluctuations in superparamagnetic CoFeB with NV quantum dephasometry
Shoaib Mahmud, Wei Zhang, Pronoy Das +3 more·Feb 12, 2026
Superparamagnetism in nanoscale magnetic layers is a critical property for a wide range of spintronic-based sensor and computing applications. While conventional magnetization measurements can detect superparamagnetic signatures, they often require t...
Momentum Distribution of the Dilute Fermi Gas
Niels Benedikter, Emanuela L. Giacomelli, Asbjørn Bækgaard Lauritsen +1 more·Feb 12, 2026
We consider a dilute quantum gas of interacting spin-1/2 fermions in the thermodynamic limit. For a trial state that resolves the ground state energy up to the precision of the Huang--Yang formula, we rigorously derive its momentum distribution. Our ...
Remarks on non-invertible symmetries on a tensor product Hilbert space in 1+1 dimensions
Kansei Inamura·Feb 12, 2026
We propose an index of non-invertible symmetry operators in 1+1 dimensions and discuss its relation to the realizability of non-invertible symmetries on the tensor product of finite dimensional on-site Hilbert spaces on the lattice. Our index general...
Scalable Preparation of Matrix Product States with Sequential and Brick Wall Quantum Circuits
Tomasz Szołdra, Rick Mukherjee, Peter Schmelcher·Feb 12, 2026
Preparing arbitrary quantum states requires exponential resources. Matrix Product States (MPS) admit more efficient constructions, particularly when accuracy is traded for circuit complexity. Existing approaches to MPS preparation mostly rely on heur...
A New Angle on Quantum Subspace Diagonalization for Quantum Chemistry
Xeno De Vriendt, Jacob Bringewatt, Nik O. Gjonbalaj +5 more·Feb 12, 2026
Quantum subspace diagonalization and quantum Krylov algorithms offer a feasible, pre- or early-fault tolerant alternative to quantum phase estimation for using quantum computers to estimate the low-lying spectra of quantum systems. However, despite p...
RING: Rabi oscillations induced by nonresonant geometric drive
Baksa Kolok, András Pályi·Feb 12, 2026
Coherent control of two-level quantum systems is typically achieved using resonant driving fields, forming the basis for qubit operations. Here, we report a mechanism for inducing complete Rabi oscillations in monochromatically driven two-level quant...
Millisecond-Scale Calibration and Benchmarking of Superconducting Qubits
Malthe A. Marciniak, Rune T. Birke, Johann B. Severin +13 more·Feb 12, 2026
Superconducting qubit parameters drift on sub-second timescales, motivating calibration and benchmarking techniques that can be executed on millisecond timescales. We demonstrate an on-FPGA workflow that co-locates pulse generation, data acquisition,...
Resource-Adaptive Teleportation Under Imperfect Entanglement: A Code-Puncturing Framework
Mahmoud Saad Abouamer, Jaron Skovsted Gundersen, Søren Pilegaard Rasmussen +1 more·Feb 12, 2026
Quantum teleportation is a foundational protocol for sending quantum information through entanglement distribution and classical communication. Assuming ideal classical communication, the reliability of quantum teleportation is limited by the fidelit...
Benchmarking Classical and Quantum Optimization Approaches for Rider-Order Assignment
Tharrmashastha SAPV, Surya Prakash Palanivel, Jasjyot Singh Gulati +1 more·Feb 12, 2026
The logistics industry is widely regarded as a promising application domain for emerging optimization paradigms, including quantum computing. The Rider-Order Assignment problem is a practically motivated optimization problem arising in online food de...
Resource-Efficient Teleportation of High-Dimensional Quantum Coherence via Initial Phase Engineering
Long Huang, Cai-Hong Liao, Yan-Ling Li +1 more·Feb 12, 2026
High-dimensional quantum systems leverage an expanded Hilbert space to enhance resilience against decoherence and noise. However, standard quantum teleportation is fundamentally limited by the quadratic growth of measurement complexity and high class...
Universal Sequential Changepoint Detection of Quantum Observables via Classical Shadows
Matteo Zecchin, Osvaldo Simeone, Aaditya Ramdas·Feb 12, 2026
We study sequential quantum changepoint detection in settings where the pre- and post-change regimes are specified through constraints on the expectation values of a finite set of observables. We consider an architecture with separate measurement and...
Parity-dependent double degeneracy and spectral statistics in the projected dice lattice
Koushik Swaminathan, Anouar Moustaj, Jose L. Lado +1 more·Feb 12, 2026
We investigate the spectral statistics of an interacting fermionic system derived by projecting the Hubbard interaction onto the two lowest-energy, degenerate flat bands of the dice lattice subjected to a $π$-flux. Surprisingly, the distributions of ...
Single-shot GHZ characterization with connectivity-aware fanout constructions
Giancarlo Gatti·Feb 12, 2026
We propose a practical recipe to transform any depth-$L$ block of CNOTs that prepares $n$-qubit GHZ states into an $n$-qubit fanout gate (multitarget-CNOT) of depth $2L-1$, without the need for ancilla qubits. Considering known logarithmic-depth circ...
Operational limits to entanglement-based satellite quantum key distribution
Jasminder S. Sidhu, Sarah E. McCarthy, Cameron Paterson +1 more·Feb 12, 2026
Space-based distribution of quantum entanglement will be essential for global quantum networking and secure communications. Modelling and analysis of the performance of satellite entanglement pair distribution is important for the architecture and de...