Papers
Live trends in quantum computing research, updated daily from arXiv.
Total Papers
27,548
This Month
1,041
Today
0
Research Volume
12,896 papers in 12 months (-5% vs prior quarter)
Research Focus Areas
Papers by research theme (12 months). Hover for details.
Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Weighted graph states as a resource for quantum metrology
B. J. Alexander, Ş. K. Özdemir, M. S. Tame·Feb 13, 2026
Quantum metrology exploits quantum mechanical effects to increase the precision of measurements of physical quantities. A wide variety of applications are currently being developed for scientific and technological purposes, however, most research rel...
Quantum metrology with partially accessible chaotic sensors
Harshita Sharma, Sayan Choudhury, Jayendra N. Bandyopadhyay·Feb 13, 2026
Most quantum metrology protocols harness highly entangled probe states and globally accessible measurements to surpass the standard quantum limit. However, it is challenging to satisfy these requirements in realistic many-body sensors. We demonstrate...
Equilibrium thermometry in the multilevel quantum Rabi model
Tabitha Doicin, Luis A. Correa, Jonas Glatthard +2 more·Feb 13, 2026
The temperature sensitivity of a probe in equilibrium can be gauged by its thermal quantum Fisher information (QFI). It is known that probes exhibiting degeneracy in their energy-level structure can achieve larger sensitivities, while probes with a m...
Floquet implementation of a 3d fermionic toric code with full logical code space
Yoshito Watanabe, Bianca Bannenberg, Simon Trebst·Feb 13, 2026
Floquet quantum error-correcting codes provide an operationally economical route to fault tolerance by dynamically generating stabilizer structures using only two-body Pauli measurements. But while it is well established that stabilizer codes in high...
Boundary mutual information in double holography
Yuxuan Liu, Yi Ling, Zhuo-Yu Xian·Feb 13, 2026
We consider a composite system where AdS$_3$ gravity is coupled to a flat heat bath and investigate the mutual information between two subregions on the intersection of the AdS$_3$ and bath, referred to as the boundary mutual information (BMI). The c...
Challenge-Response Quantum Reinforcement Learning with Application to Quantum-Assisted Authentication
Jawaher Kaldari, Saif Al-Kuwari·Feb 12, 2026
Quantum reinforcement learning (QRL) has emerged as a promising research direction that integrates quantum information processing into reinforcement learning frameworks. While many existing QRL studies apply quantum agents to classical environments, ...
Temporal Framework for Causality-Preserving Scheduling of Measurements in Quantum Networks
Jakob Kaltoft Søndergaard, René Bødker Christensen, Petar Popovski·Feb 12, 2026
Distributed quantum protocols rely on classical feedforward information to process measurement outcomes, but heterogeneous hardware and uncertain local timing can make the causal order of measurements ambiguous when inferred solely from arrival times...
Information lattice approach to the metal-insulator transition
William Skoglund, Elton Giacomelli, Yiqi Yang +2 more·Feb 12, 2026
Correlation functions and correlation lengths are frequently used to describe phase transitions in quantum systems, but they require an explicit choice of observables. The recently introduced information lattice instead provides an observable-indepen...
Accelerating Feedback-based Algorithms for Quantum Optimization Using Gradient Descent
Masih Mozakka, Mohsen Heidari·Feb 12, 2026
Feedback-based methods have gained significant attention as an alternative training paradigm for the Quantum Approximate Optimization Algorithm (QAOA) in solving combinatorial optimization problems such as MAX-CUT. In particular, Quantum Lyapunov Con...
Observing dissipationless flow of an impurity in a strongly repulsive quantum fluid
Milena Horvath, Sudipta Dhar, Elisabeth Wybo +6 more·Feb 12, 2026
The frictionless motion of an object through a fluid medium is commonly viewed as a hallmark of superfluidity. According to Landau, kinematic constraints prohibit superfluid behavior in one-dimensional (1D) bosonic systems. Here, using ultracold atom...
Quantum-Coherent Thermodynamics: Leaf Typicality via Minimum-Variance Foliation
Maurizio Fagotti·Feb 12, 2026
Equilibrium statistical ensembles commute with the Hamiltonian and thus carry no coherence in the energy eigenbasis. We develop a thermodynamic framework in which energy fluctuations can retain genuinely quantum-coherent contributions. We foliate sta...
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...
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...
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...
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...
Learning functions of quantum states with distributed architectures
Marta Gili, Eliana Fiorelli, Ane Blázquez-García +2 more·Feb 12, 2026
Distributed architectures are gaining prominence in quantum machine learning as a means to overcome hardware limitations and enable scalable quantum information processing. In this context, we analyze the design and performance of distributed Quantum...
The Power of Two Bases: Robust and copy-optimal certification of nearly all quantum states with few-qubit measurements
Andrea Coladangelo, Jerry Li, Joseph Slote +1 more·Feb 12, 2026
A central task in quantum information science is state certification: testing whether an unknown state is $ε_1$-close to a fixed target state, or $ε_2$-far. Recent work has shown that surprisingly simple measurement protocols--comprising only single-...
Quantization Mapping on Dirac Dynamics via Voltage-Driven Charge Density in Monolayer Graphene: A Klein Paradox and Entropy-Ruled Wavevector Mechanics Study
Karuppuchamy Navamani·Feb 12, 2026
Thermodynamics coupled with quantum features on electron and hole dynamics in Dirac materials is quite interesting and crucial for real device applications. The correlation between the formation of electron-hole puddles in nearer to the charge neutra...
Complete freezing of initially maximal entanglement in Schwarzschild black hole
Si-Han Li, Hui-Chen Yang, Rui-Yang Xu +1 more·Feb 12, 2026
Gravitational effects associated with black holes are widely believed to universally degrade quantum entanglement, with the loss of maximal entanglement being particularly severe and even irreversible for bosonic fields. In this work, we investigate ...