Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Decoherence-induced self-dual criticality in topological states of matter
Qingyuan Wang, Romain Vasseur, Simon Trebst +2 more·Feb 19, 2025
Quantum measurements performed on a subsystem of a quantum many-body state can generate entanglement for its remaining constituents. The whole system including the measurement record is described by a hybrid mixed state, which can exhibit exotic phas...
Correcting and Extending Trotterized Quantum Many-Body Dynamics
G. Gentinetta, Friederike Metz, Giuseppe Carleo·Feb 19, 2025
A complex but important challenge in understanding quantum mechanical phenomena is the simulation of quantum many-body dynamics. Although quantum computers offer significant potential to accelerate these simulations, their practical application is cu...
Measurement-device-independent Schmidt number certification of all entangled states
Saheli Mukherjee, Bivas Mallick, Arun Kumar Das +2 more·Feb 18, 2025
Bipartite quantum states with higher Schmidt numbers have been shown to outperform those with lower Schmidt numbers in various quantum information processing tasks, highlighting the operational advantage of entanglement dimensionality. Certifying the...
Triangular lattice models of the Kalmeyer-Laughlin spin liquid from coupled wires
Tingyu Gao, Niklas Tausendpfund, Erik L. Weerda +3 more·Feb 18, 2025
Chiral spin liquids (CSLs) are exotic phases of interacting spins in two dimensions, characterized by long-range entanglement and fractional excitations. We construct a local Hamiltonian on the triangular lattice that stabilizes the Kalmeyer-Laughlin...
Finite cutoff JT gravity: Baby universes, Matrix dual, and (Krylov) Complexity
Arpan Bhattacharyya, Saptaswa Ghosh, Sounak Pal +1 more·Feb 18, 2025
In this paper, as an application of the `Complexity = Volume' proposal, we calculate the growth of the interior of a black hole at late times for finite cutoff JT gravity. Due to this integrable, irrelevant deformation, the spectral properties are mo...
Predictive simulations of the dynamical response of mesoscopic devices
S. Boutin, Torsten Karzig, Tareq El Dandachi +4 more·Feb 18, 2025
As the complexity of mesoscopic quantum devices increases, simulations are becoming an invaluable tool for understanding their behavior. This is especially true for the superconductor-semiconductor heterostructures used to build Majorana-based topolo...
Benchmarking MedMNIST dataset on real quantum hardware
Gurinder Singh, Hongni Jin, Kenneth M. Merz·Feb 18, 2025
Quantum machine learning (QML) has emerged as a promising domain to leverage the computational capabilities of quantum systems to solve complex classification tasks. In this work, we present the first comprehensive QML study by benchmarking the MedMN...
Observable and computable entanglement in time
Alexey Milekhin, Zofia Adamska, John Preskill·Feb 17, 2025
We propose a novel family of entanglement measures for time-separated subsystems. Our definitions are applicable to any quantum system, continuous or discrete. To illustrate their utility, we derive upper and lower bounds on time-separated correlatio...
Increasing the distance of topological codes with time vortex defects
Gilad Kishony, Erez Berg·Feb 17, 2025
We propose modifying topological quantum error correcting codes by incorporating space-time defects, termed ``time vortices,'' to reduce the number of physical qubits required to achieve a desired logical error rate. A time vortex is inserted by addi...
Large Language Models Can Help Mitigate Barren Plateaus in Quantum Neural Networks
Jun Zhuang, Chaowen Guan·Feb 17, 2025
In the era of noisy intermediate-scale quantum (NISQ) computing, Quantum Neural Networks (QNNs) have emerged as a promising approach for various applications, yet their training is often hindered by barren plateaus (BPs), where gradient variance vani...
Matrix Low-dimensional Qubit Casting Based Quantum Electromagnetic Transient Network Simulation Program
Qi Lou, Yijun Xu, W. Gu·Feb 17, 2025
In modern power systems, the integration of converter-interfaced generations requires the development of electromagnetic transient network simulation programs (EMTP) that can capture rapid fluctuations. However, as the power system scales, the EMTP's...
Unitality Conditions on Subsystems in Quantum Dynamics
Anumita Mukhopadhyay, Shibdas Roy, A. K. Pati·Feb 17, 2025
It is known that non-unital noise such as the amplitude damping can sometimes increase quantum correlations, while unital noise such as the dephasing usually decreases quantum correlations. It is, therefore, important to delineate the conditions, whe...
Circuit Partitioning and Full Circuit Execution: A Comparative Study of GPU-Based Quantum Circuit Simulation
Kartikey Sarode, Daniel Huang, E. .. Bethel·Feb 17, 2025
Executing large quantum circuits is not feasible using the currently available NISQ (noisy intermediate-scale quantum) devices. The high costs of using real quantum devices make it further challenging to research and develop quantum algorithms. As a ...
Waveguide QED Analysis of Quantum-Coherent Links for Modular Quantum Computing
Junaid Khan, Sergio Navarro Reyes, Sahar Ben Rached +4 more·Feb 17, 2025
Waveguides potentially offer an effective medium for interconnecting quantum processors within a modular framework, facilitating the coherent quantum state transfer between the qubits across separate chips. In this work, we analyze a quantum communic...
Exploring quantum control landscape and solution space complexity through optimization algorithms and dimensionality reduction
H. W. Fentaw, Steve Campbell, Simon Caton·Feb 17, 2025
Understanding the quantum control landscape (QCL) is important for designing effective quantum control strategies. In this study, we analyze the QCL for a single two-level quantum system (qubit) using various control strategies. We employ Principal C...
Programmable photonic waveguide arrays: opportunities and challenges
Yang Yang, Akram Youssry, A. Peruzzo·Feb 17, 2025
The rising complexity of photonic applications, ranging from quantum computing to neuromorphic processing, has driven the demand for highly programmable and scalable photonic integrated circuits. While mesh-based architectures built from Mach-Zehnder...
Roadmap to fault tolerant quantum computation using topological qubit arrays
D. Aasen, M. Aghaee, Zulfi Alam +179 more·Feb 17, 2025
We describe a concrete device roadmap towards a fault-tolerant quantum computing architecture based on noise-resilient, topologically protected Majorana-based qubits. Our roadmap encompasses four generations of devices: a single-qubit device that ena...
Optimized Amplitude Amplification for Quantum State Preparation
Artem Chernikov, K. Zakharova, Sergey Sysoev·Feb 17, 2025
In this paper, we present an algorithm for preparing quantum states of the form \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{u...
The Q-Spellbook: Crafting Surface Code Layouts and Magic State Protocols for Large-Scale Quantum Computing
Avimita Chatterjee, Archisman Ghosh, Swaroop Ghosh·Feb 16, 2025
Quantum error correction is a cornerstone of reliable quantum computing, with surface codes emerging as a prominent method for protecting quantum information. Surface codes are efficient for Clifford gates but require magic state distillation protoco...
Standalone FPGA-Based QAOA Emulator for Weighted-MaxCut on Embedded Devices
Seonghyun Choi, Kyeongwon Lee, Jae-Jin Lee +1 more·Feb 16, 2025
Quantum computing QC emulation is crucial for advancing QC applications, especially given the scalability constraints of current devices. FPGA-based designs offer an efficient and scalable alternative to traditional large-scale platforms, but most ar...