Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Hybridlane: A Software Development Kit for Hybrid Continuous-Discrete Variable Quantum Computing
Jim Furches, Timothy J. Stavenger, Carlos Ortiz Marrero·Mar 11, 2026
Hybrid quantum computing systems that combine discrete-variable qubits with continuous-variable qumodes offer promising advantages for quantum simulation, error correction, and sensing applications. However, existing quantum software frameworks lack ...
Feasibility of satellite-augmented global quantum repeater networks
Manik Dawar, Clement Paillet, Nilesh Vyas +3 more·Mar 11, 2026
A large scale quantum network requires the distribution of high-fidelity end-to-end entanglement. To overcome the range limitations inherent to terrestrial fiber, a leading architecture has emerged: satellite-based sources transmitting entanglement t...
High fidelity photon-photon gates by scattering off a two-level quantum emitter
Love A. Pettersson, Victor R. Christiansen, Klaus Mølmer +1 more·Mar 11, 2026
We present a scheme for implementing a high-fidelity non-linear phase shift on a photonic state. The scheme is based on repeated scattering off a two-level quantum emitter embedded in a chiral or one-sided waveguide. The waveguide is equipped with el...
Efficient and accurate two-qubit-gate operation in a high-connectivity transmon lattice utilizing a tunable coupling to a shared mode
Tuure Orell, Hao Hsu, Joona Andersson +3 more·Mar 11, 2026
Increasing connectivity and decreasing qubit-state delocalization without compromising the speed and accuracy of elementary gate operations are topical challenges in the development of large-scale superconducting quantum computers. In this theoretica...
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...
Quantum-logic spectroscopy of forbidden vibrational transitions in single nitrogen molecular ions
Aleksandr Shlykov, Meissa L. Diouf, Richard Karl +3 more·Mar 11, 2026
Electric-dipole forbidden spectroscopic transitions in atoms form the basis of many advanced implementations of quantum computers, atomic clocks and quantum sensors. Coherently addressing such transitions in molecules which are among the most ubiquit...
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...
Regularized Warm-Started Quantum Approximate Optimization and Conditions for Surpassing Classical Solvers on the Max-Cut Problem
Zichang He, Anuj Apte, Brandon Augustino +4 more·Mar 10, 2026
Demonstrating quantum heuristics that outperform strong classical solvers on large-scale optimization remains an open challenge. Here we introduce Regularized Warm-Started QAOA (RWS-QAOA), which initializes qubits by minimizing expected energy with a...
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...
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...
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...
Mitigating Frequency Learning Bias in Quantum Models via Multi-Stage Residual Learning
Ammar Daskin·Mar 10, 2026
Quantum machine learning models based on parameterized circuits can be viewed as Fourier series approximators. However, they often struggle to learn functions with multiple frequency components, particularly high-frequency or non-dominant ones; a phe...
Multi-tasking through quantum annealing
Jargalsaikhan Artag, Koki Awaya, Takumi Kanezashi +3 more·Mar 10, 2026
Quantum annealing approximately solves combinatorial optimization problems by leveraging the principles of adiabatic quantum systems. In this approach, the system's Hamiltonian evolves from an initial general state to a problem-specific state. This s...
Efficient Qubit Simulation of Hybrid Oscillator-Qubit Quantum Computation
Xi Lu, Bojko N. Bakalov, Yuan Liu·Mar 10, 2026
We introduce a framework for simulating hybrid oscillator-qubit quantum processors on qubit-only systems through position encoding. By encoding continuous-variable position and momentum wave functions into qubit amplitudes, our method efficiently sim...
Analytic formulae for non-local magic in bipartite systems of qutrits and ququints
Giorgio Busoni, John Gargalionis, Ewan N. V. Wallace +1 more·Mar 10, 2026
We conjecture analytic expressions for the non-local magic of bipartite pure qudit states of prime local dimension. Our construction relies on the Schmidt-aligned state attaining the minimum over local unitaries, a hypothesis that we support with num...
Parallel iQCC Enables 200 Qubit Scale Quantum Chemistry on Accelerated Computing Platforms Surpassing Classical Benchmarks in Ruthenium Catalysts
Seyyed Mehdi Hosseini Jenab, Brandon Henderson, Scott N. Genin·Mar 9, 2026
We introduce a parallel, GPU-accelerated implementation of the iterative qubit coupled cluster (iQCC) method that overcomes the exponential growth of the transformed Hamiltonian -- the principal bottleneck for classical emulation of quantum chemistry...
Large Language Model-Assisted Superconducting Qubit Experiments
Shiheng Li, Jacob M. Miller, Phoebe J. Lee +14 more·Mar 9, 2026
Superconducting circuits have demonstrated significant potential in quantum information processing and quantum sensing. Implementing novel control and measurement sequences for superconducting qubits is often a complex and time-consuming process, req...
Quantum algorithm for anisotropic diffusion and convection equations with vector norm scaling
Julien Zylberman, Thibault Fredon, Nuno F. Loureiro +1 more·Mar 9, 2026
In this work, we tackle the resolution of partial differential equations (PDEs) on digital quantum computers. Two fundamental PDEs are addressed: the anisotropic diffusion equation and the anisotropic convection equation. We present a quantum numeric...
Exploring pathways towards quantum advantage in quantum chemistry: the case of a molecule with half-Möbius topology
Samuele Piccinelli, Stefano Barison, Alberto Baiardi +8 more·Mar 9, 2026
We report quantum chemistry calculations performed on superconducting quantum processors for a molecule exhibiting the half-Möbius electronic topology originally introduced by Rončević et al. Using SqDRIFT, a randomized sample-based Krylov quantum di...