Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Qubit reset beyond the Born-Markov approximation: optimal driving to overcome polaron formation
Carlos Ortega-Taberner, Eoin O'Neill, Paul Eastham·Mar 10, 2026
Qubits are typically reset into a known state by coupling them to a low-temperature environment. When treated in the Born-Markov approximation such couplings produce exponential relaxation to equilibrium, giving high reset fidelities limited only by ...
Quantum control of the environment in open quantum systems enables rapid qubit reset
Carlos Ortega-Taberner, Eoin O'Neill, Paul Eastham·Mar 10, 2026
Qubit reset is crucial in quantum technology and is typically achieved by coupling the qubit to a dissipative environment. However, the achievable speed and fidelity are limited by qubit-environment entanglement. We use exact tensor-network simulatio...
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...
Has quantum advantage been achieved?
Dominik Hangleiter·Mar 10, 2026
Quantum computational advantage was claimed for the first time in 2019 and several experiments since then have reinforced the claim. And yet, there is no consensus whether or not quantum advantage has actually been achieved. In this article, I addres...
Optimal Universal Bounds for Quantum Divergences
Gilad Gour·Mar 10, 2026
We identify a universal structural principle underlying the smoothing of classical divergences: the optimizer of the smoothing problem is a clipped probability vector, independently of the specific divergence. This yields a divergence-independent cha...
Crosstalk in Multi-Qubit Fluxonium Architectures with Transmon Couplers
Martijn F. S. Zwanenburg, Christian Kraglund Andersen·Mar 10, 2026
In recent years, several architectures have been proposed for implementing two-qubit operations on fluxonium superconducting qubits. A particularly promising approach, which was demonstrated experimentally by Refs. [1,2], employs a transmon supercond...
Velocity Verlet-based optimization for variational quantum eigensolvers
Rinka Miura·Mar 10, 2026
The Variational Quantum Eigensolver (VQE) is a key algorithm for near-term quantum computers, yet its performance is often limited by the classical optimization of circuit parameters. We propose using the velocity Verlet algorithm, inspired by classi...
Self-consistent mean-field quantum approximate optimization
Maxime Dupont, Bhuvanesh Sundar, Meenambika Gowrishankar·Mar 10, 2026
We introduce a self-consistent mean-field quantum optimization algorithm that approximates the ground state of classical Ising Hamiltonians. The algorithm decomposes the problem into independent subproblems and treats the interactions between them in...
Disorder-Assisted Adiabaticity in Correlated Many-Particle Systems
Shang-Jie Liou, Herbert F. Fotso·Mar 10, 2026
We investigate how disorder affects adiabaticity in an interacting quantum system by assessing its effect on the state of the system after an interaction modulation, or interaction ``pulse" ,whereby the interaction is changed from zero to a maximum v...
Quantum-preserving telecom conversion of atomic biphotons
Ling-Chun Chen, Chang-Wei Lin, Jiun-Shiuan Shiu +3 more·Mar 10, 2026
We experimentally demonstrate telecom frequency conversion of atomic biphotons using a diamond-type atomic ensemble. By spectrally engineering heralded photons and optimizing the atomic converter, efficient conversion is achieved while preserving the...
An Introduction to the Foundations and Interpretations of Quantum Mechanics
Theodore McKeever, Ahsan Nazir·Mar 10, 2026
This article surveys key conceptual and interpretational developments in quantum mechanics, tracing the theory from its foundational postulates to contemporary discussions of measurement, nonlocality, and the emergence of classicality. Beginning with...
A Hybrid Quantum-Classical Framework for Financial Volatility Forecasting Based on Quantum Circuit Born Machines
Yixiong Chen·Mar 10, 2026
Accurate forecasting of financial market volatility is crucial for risk management, option pricing, and portfolio optimization. Traditional econometric models and classical machine learning methods face challenges in handling the inherent non-linear ...
Capacity of Entanglement and Replica Backreaction in RST Gravity
Raúl Arias, Daniel Fondevila·Mar 10, 2026
We compute the capacity of entanglement in two dimensional dilaton gravity in a setting where Hawking radiation, backreaction, and islands can be treated analytically. Our focus is the eternal black hole of the Russo Susskind Thorlacius model coupled...
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...
Decoherence-free Behaviors of Quantum Emitters in Dissipative Photonic Graphene
Qing-Yang Qiu, Guoqing Tian, Zhi-Guang Lu +2 more·Mar 10, 2026
Achieving decoherence-free quantum state manipulation is a paramount goal in modern quantum technologies. To this end, we demonstrate its implementation in a two-dimensional dissipative photonic graphene featuring exceptional rings. Employing the res...
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...
Narrowband heralded single photons via Bragg grating inscription in germanium-doped photonic crystal fiber
Will A. M. Smith, Alex I. Flint, Rex H. S. Bannerman +4 more·Mar 10, 2026
We present a fiber-based source of narrowband heralded single photons in the telecoms C-band. Photon pairs were generated by spontaneous four-wave mixing in photonic crystal fiber (PCF) with a germanium-doped region incorporated into its core for enh...
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...
MM-tau-p$^2$: Persona-Adaptive Prompting for Robust Multi-Modal Agent Evaluation in Dual-Control Settings
Anupam Purwar, Aditya Choudhary·Mar 10, 2026
Current evaluation frameworks and benchmarks for LLM powered agents focus on text chat driven agents, these frameworks do not expose the persona of user to the agent, thus operating in a user agnostic environment. Importantly, in customer experience ...
System-bath model for quantum chemistry
Dmitry S. Golubev, Reza G. Shirazi, Vladimir V. Rybkin +3 more·Mar 10, 2026
We propose an approximate mapping of a molecular Hamiltonian to a Hamiltonian of qubits, which allows for high accuracy quantum chemistry calculations of vertical excitation energies of some molecules. The mapping is based on separating of a very sma...