Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Error-Mitigated Hamiltonian Simulation: Complexity Analysis and Optimization for Near-Term and Early-Fault-Tolerant Quantum Computers
Keisuke Murota, Synge Todo, Suguru Endo·Mar 12, 2026
Simulating real-time dynamics under a Hamiltonian is a central goal of quantum information science. While numerous Hamiltonian-simulation quantum algorithms have been proposed, the effects of physical noise have rarely been incorporated into performa...
Quantum photonic frequency processor on thin-film lithium niobate
Ran Yang, Wei Zhou, Dong-Jie Guo +11 more·Mar 12, 2026
The rapid development of photonic quantum information processing necessitates precise and programmable control over optical frequency, a capability critical not only for achieving photon indistinguishability but also for exploiting a virtually unboun...
Diving into booklet wormholes
Libo Jiang, Yan Liu·Mar 12, 2026
ArXiv:2508.17898 proposed the booklet wormhole as the holographic dual of the GHZ state. This paper extends the investigation into this geometry, particularly focusing on the junction conditions for matter fields. We show that the symmetry of the GHZ...
Generalized Reduced-Density-Matrix Quantum Monte Carlo Gives Access to More
Zhiyan Wang, Zhe Wang, Bin-Bin Mao +1 more·Mar 11, 2026
For a long time, people have been focusing on how to extract more information, such as off-diagonal observables, from the quantum Monte Carlo (QMC) simulation of the partition function, but there have been numerous difficulties, and many of them are ...
Quantum Hypergraph States: A Review
Davide Poderini, Dagmar Bruß, Chiara Macchiavello·Mar 11, 2026
Quantum hypergraph states extend the well-studied class of graph states by taking into account multi-qubit interactions through hyperedges. They provide a powerful framework to represent a family of quantum states with genuine multipartite entangleme...
Entanglement distillation based on Hamiltonian dynamics
Zitai Xu, Guoding Liu·Mar 11, 2026
Efficient entanglement distillation is a central task in quantum information science and future quantum networks. At the core of distillation protocols are the quantum error correction and detection schemes which enhance the fidelity of entangled pai...
Probing the ergodicity breaking transition via violations of random matrix theoretic predictions for local observables
Venelin P. Pavlov, Peter A. Ivanov, Diego Porras +1 more·Mar 11, 2026
Quantum many-body systems can exhibit distinct regimes where dynamics is either ergodic, dynamically exploring an extensive region of available state-space, or non-ergodic, where the dynamics may be restricted. An example is the many-body localizatio...
Self-testing with untrusted random number generators
Moisés Bermejo Morán, Ravishankar Ramanathan·Mar 11, 2026
Self-testing--the attractive possibility to infer the underlying physics of a quantum device in a black-box scenario--has gained increased traction in recent years, with applications to device-independent quantum information processing. Thus far, sel...
Fundamental Limits of Non-Hermitian Sensing from Quantum Fisher Information
Jan Wiersig, Stefan Rotter·Mar 11, 2026
Exceptional points (EPs) exhibit strongly enhanced spectral responses and are therefore promising candidates for sensing applications. Whether these non-Hermitian degeneracies provide a genuine advantage in the quantum regime has been the subject of ...
Optical quantum teleportation with known amplitude distorting factors of teleported qubits
Mikhail S. Podoshvedov, Sergey A. Podoshvedov·Mar 11, 2026
We develop a quantum teleportation protocol of an unknown optical single rail qubit using a hybrid quantum channel composed of continuous variable (CV) states of certain parity. The quantum channel is characterized by two parameters: a squeezing para...
Temporal-Mode Engineering for Multiplexed Microwave Photons and Mode-Selective Quantum State Transfer
Keika Sunada, Takeaki Miyamura, Kohei Matsuura +4 more·Mar 11, 2026
Quantum communication between distant superconducting qubits on separate chips using itinerant microwave photons has been studied to realize distributed quantum information processing. To enhance information capacity and fault tolerance in quantum ne...
Remote engineering of particle-like topologies to visualise entanglement dynamics
Fazilah Nothlawala, Bereneice Sephton, Pedro Ornelas +6 more·Mar 11, 2026
Skyrmions are a particle-like topology with a quantised skyrmion number, realised across condensed matter and photonic platforms alike. In quantum photonics, they constitute an emerging resource, promising robust quantum information encoding, so far ...
Practical Methods for Distance-Adaptive Continuous-Variable Quantum Key Distribution
Jonas Berl, Utku Akin, Erdem Eray Cil +2 more·Mar 11, 2026
Continuous-variable quantum key distribution (CV-QKD) is a promising quantum-safe alternative to classical asymmetric cryptography that enables two authenticated parties to establish a shared secret over a potentially eavesdropped quantum channel. A ...
Geo-ADAPT-VQE: Quantum Information Metric-Aware Circuit Optimization for Quantum Chemistry
Mohammad Aamir Sohail, Toshiaki Koike-Akino·Mar 11, 2026
Adaptive ansatz construction has emerged as a powerful technique for reducing circuit depth and improving optimization efficiency in variational quantum eigensolvers. However, existing adaptive methods, including ADAPT-VQE, rely solely on first-order...
Learning from Radio using Variational Quantum RF Sensing
Ivana Nikoloska·Mar 10, 2026
In modern wireless networks, radio channels serve a dual role. Whilst their primary function is to carry bits of information from a transmitter to a receiver, the intrinsic sensitivity of transmitted signals to the physical structure of the environme...
Hysteretic squashed entanglement in many-body quantum systems
Siddhartha Das, Alexander Yosifov, Jinzhao Sun·Mar 10, 2026
Entanglement in many-body quantum systems is distributed across spatial regions, where its structure often dictates the information-processing capabilities of the state. Yet, characterizing the entanglement structure, especially for mixed states, rem...
Operational bounds and diagnostics for coherence in energy transfer
Julia Liebert, Gregory D. Scholes·Mar 10, 2026
Excitation energy transfer in light-harvesting aggregates is highly efficient, yet whether quantum coherence plays an operational role in transport remains debated. A central challenge is that coherence is usually inferred from spectroscopic signatur...
Temporal limitations and digital data processing in continuous variable measurements of non-Gaussian states
Antoine Petitjean, Anthony Martin, Mohamed F. Melalkia +6 more·Mar 10, 2026
Non-Gaussian quantum states and operations are essential tools for multiple quantum information protocols exploiting light as information career. In this context, a key role is played by schemes operating with continuous wave light, in which non-Gaus...
Noise Models Impacts and Mitigation Strategies in Photonic Quantum Machine Learning
A. M. A. S. D. Alagiyawanna, Asoka Karunananda·Mar 10, 2026
Photonic Quantum Machine Learning (PQML) is an emerging method to implement scalable, energy-efficient quantum information processing by combining photonic quantum computing technologies with machine learning techniques. The features of photonic tech...
Chip-Integrated Broadband Multi-Photon Source for Wavelength-Multiplexed Quantum Networks
Xiao-Xu Fang, Ling-Xuan Kong, He Lu·Mar 10, 2026
Quantum networks based on wavelength-multiplexed entanglement enable parallel distribution of quantum correlations, increasing channel capacity for secure communication and distributed quantum information processing. However, broadband integrated sou...