Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Uncertainty equality for SU(N) observables enabling the experimentally friendly detection of k-inseparability via purity measurements
G. Tartaglione, G. Zanfardino, F. Illuminati·Mar 18, 2026
We derive an exact uncertainty relation for arbitrary quantum states of finite-dimensional Hilbert spaces. For any given $k$-partition of a $d$-dimensional multipartite system, we introduce the total uncertainty as the sum of the uncertainties associ...
Quasi-local Edge Mode in XXX Spin Chain/Circuit with Interaction Boundary Defect
Tomaž Prosen·Mar 18, 2026
We study the Heisenberg spin-1/2 model on a semi-infinite chain - or, equivalently, a trotterized unitary SU(2) symmetric six-vertex quantum circuit - with a boundary defect where the interaction between the two spins nearest the edge differs from th...
Topological states and flat bands induced by bound states in the continuum in a ladder-shaped one-dimensional photonic crystal
Sofía Pinto, P. A. Orellana, Sergio Bravo·Mar 18, 2026
One-dimensional crystals serve as a versatile platform for engineering nontrivial states, which can be easily explored in transport configurations. In this work, we analyze the properties of a periodic structure composed of an H-shaped unit cell, whi...
Hamiltonian Simulation and Linear Combination of Unitary Decomposition of Structured Matrices
Robin Ollive, Stéphane Louise·Mar 18, 2026
To treat a problem with a Quantum Processing Unit (QPU), it must be transformed into a sequence of quantum operations, or gates: this is the quantum description of the problem. These operations are either packed into a query (i.e. quantum algorithm p...
The Convergence Frontier: Integrating Machine Learning and High Performance Quantum Computing for Next-Generation Drug Discovery
Narjes Ansari, César Feniou, Nicolaï Gouraud +13 more·Mar 18, 2026
Integrating quantum mechanics into drug discovery marks a decisive shift from empirical trial-and-error toward quantitative precision. However, the prohibitive cost of ab initio molecular dynamics has historically forced a compromise between chemical...
Superactivation of genuine multipartite Bell nonlocality from two-party entanglement
Markus Miethlinger, Riccardo Castellano, Pavel Sekatski +1 more·Mar 18, 2026
Characterizing the relation between entanglement and Bell nonlocality is a long-standing open problem, notably challenging in the multipartite case. Here we investigate the effect of superactivation of genuine multipartite nonlocality. Specifically, ...
Quantum Depth Compression via Local Dynamic Circuits
Benjamin Hall, Palash Goiporia, Rich Rines·Mar 18, 2026
We present Quantum Depth Compression (QDC), a general compilation framework that utilizes dynamic circuits to reduce arbitrary quantum circuits to depth linear in the number of non-Clifford gates and to grid connectivity without the need for expensiv...
Bosonic quantum mixtures with competing interactions: quantum liquid droplets and supersolids
Sarah Hirthe, Leticia Tarruell·Mar 18, 2026
These lecture notes contain an introduction to quantum simulation of bosonic systems in the continuum, focusing on weakly interacting Bose-Bose mixtures with competing mean-field interactions. When the values of such interactions are fine-tuned to al...
Fast stabilizer state preparation via AI-optimized graph decimation
Michael Doherty, Matteo Puviani, Jasmine Brewer +4 more·Mar 18, 2026
We propose a general method for preparing stabilizer states with reduced two-qubit gate count and depth compared to the state of the art. The method starts from a graph state representation of the stabilizer state and iteratively reduces the number o...
Optimal detection of dissipation in Lindbladian dynamics
Yiyi Cai·Mar 18, 2026
Experimental implementations of Hamiltonian dynamics are often affected by dissipative noise arising from interactions with the environment. This raises the question of whether one can detect the presence or absence of such dissipation using only acc...
Improved quantum circuits for division
Priyanka Mukhopadhyay, Alexandru Gheorghiu, Hari Krovi·Mar 18, 2026
Arithmetic operations are an important component of many quantum algorithms. As such, coming up with optimized quantum circuits for these operations leads to more efficient implementations of the corresponding algorithms. In this paper, we develop ne...
Reconfigurable circuit for mode tunable topological quantum structured light
Pedro Ornelas, Tatjana Kleine, André G. de Oliveira +3 more·Mar 18, 2026
Structured light in the quantum regime has garnered considerable attention due to the opportunities it offers when mixing light's internal degrees of freedom, for high-dimensional and multi-dimensional quantum states of light. A popular example is to...
TENSO: Software Package for Numerically Exact Open Quantum Dynamics Based on Efficient Tree Tensor Network Decomposition of the Hierarchical Equations of Motion
Juan C. Rodriguez Betancourt, Michelle C. Anderson, Luchang Niu +2 more·Mar 18, 2026
TENSO is a versatile and powerful open-source software package for numerically exact simulations of the dynamics of quantum systems immersed in structured thermal environments. It is based on a tree tensor network decomposition of the hierarchical eq...
Independent Trivariate Bicycle Codes
Aygul Azatovna Galimova·Mar 18, 2026
We introduce six independent trivariate bicycle (ITB) codes, which extend the bivariate bicycle framework of Bravyi et al.\ to three cyclic dimensions. Using asymmetric polynomial pairs on three-dimensional tori, we construct four codes including a $...
Design and implementation of a modular laser system for AMO experiments
Klara Theophilo, Scott J Thomas, Georgina Croft +5 more·Mar 18, 2026
Robust laser delivery and stabilization are key components in atom-based quantum technologies, such as quantum computing. Moving these technologies towards product-like deployment requires scalable, compact, cost-effective, and upgradable modules. He...
Exactly Solvable RD Model: RG Cycles Meet Fractality
Ilya Liubimov, Alexander Gorsky·Mar 18, 2026
We consider the Bethe ansatz integrable Russian Doll (RD) model of superconductivity with time-reversal symmetry breaking, which exhibits a cyclic renormalization group. By obtaining an exact solution for the renormalization group flows, we investiga...
Implementation of non-local arbitrary two-qubit controlled gates via geometric quantum computation with Rydberg anti-blockade
Le-Jiang Yu, Jia Zheng, Kun Pu +1 more·Mar 18, 2026
In the context of Rydberg anti-blockade, this paper proposes a new scheme for a high-fidelity controlled-unitary gate based on non-adiabatic holonomic quantum computation. Under specific detuning and interaction conditions, the scheme achieves a suit...
Stability of a high-finesse optical cavity at 493 nm in vacuum for cavity QED with Barium ions
Diptaranjan Das, Ezra Kassa, Hiroki Takahashi·Mar 18, 2026
We explore the stability of a high-finesse optical cavity at 493 nm in vacuum for cavity QED with Barium ions. A high-finesse Fabry-Perot cavity is built using mirrors with high-reflectivity (HR) coatings that are implemented by stacking multiple thi...
Postselection induced localization and coherence in quantum walks on heterogeneous networks
Adithya L J, Suraj S Hegde, Chandrakala Meena·Mar 18, 2026
Postselection of quantum trajectories is known effectively introduce nonlinearity into dynamics of open quantum systems. We study the effect of such non-linearity in continuous-time quantum walks (CTQWs) on networks with homogeneous and heterogeneous...
Pretty good plus state transfer in cycles
Sarojini Mohapatra, Hiranmoy Pal·Mar 18, 2026
We investigate fractional revival in graphs with respect to the adjacency, Laplacian, and signless Laplacian matrices. We observe that, under certain conditions, fractional revival is preserved under graph complementation. Then we establish a connect...