Papers
Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Orthogonal polynomials and perfect state transfer.
·Dec 20, 2024
The aim of this review is to discuss some applications of orthogonal polynomials in quantum information processing. The hope is to keep the paper self-contained so that someone wanting a brief introduction to the theory of orthogonal polynomials and ...
Schmidt quantum compressor
I. F. Araújo, Hyeondo Oh, Nayeli A. Rodr'iguez-Briones +1 more·Dec 20, 2024
This work introduces the Schmidt quantum compressor, an innovative approach to quantum data compression that leverages the principles of Schmidt decomposition to encode quantum information efficiently. In contrast to traditional variational quantum a...
Quantum computation over the vibrational modes of a single trapped ion
A. C. Ricardo, G. G. D. Lima, Amanda G. Val'erio +2 more·Dec 19, 2024
Continuous-variable quantum computing utilizes continuous parameters of a quantum system to encode information, promising efficient solutions to complex problems. Trapped-ion systems provide a robust platform with long coherence times and precise qub...
A correspondence between quantum error correcting codes and quantum reference frames
Sylvain Carrozza, A. Chatwin-Davies, Philipp A. Hoehn +1 more·Dec 19, 2024
In a gauge theory, a collection of kinematical degrees of freedom is used to redundantly describe a smaller amount of gauge-invariant information. In a quantum error correcting code (QECC), a collection of computational degrees of freedom that make u...
Quantum Homogenization as a Quantum Steady State Protocol on NISQ Hardware
Alexander Y. Yosifov, Aditya Iyer, Daniel Ebler +1 more·Dec 19, 2024
Quantum homogenization is a reservoir-based quantum state approximation protocol, which has been successfully implemented in state transformation on quantum hardware. In this work we move beyond that and propose the homogenization as a novel platform...
Capturing the Page Curve and Entanglement Dynamics of Black Holes in Quantum Computers
Talal Ahmed Chowdhury, Kwangmin Yu, Md Asaduzzaman +1 more·Dec 19, 2024
Quantum computers are emerging technologies expected to become important tools for exploring various aspects of fundamental physics in the future. Therefore, we pose the question of whether quantum computers can help us to study the Page curve and th...
Demonstrating dynamic surface codes
A. Eickbusch, Matthew J. McEwen, V. Sivak +204 more·Dec 18, 2024
A remarkable characteristic of quantum computing is the potential for reliable computation despite faulty qubits. This can be achieved through quantum error correction, which is typically implemented by repeatedly applying static syndrome checks, per...
Two-qubit gate protocols with microwave-dressed Rydberg ions in a linear Paul trap
Joseph W. P. Wilkinson, Katrin Bolsmann, Thiago L. M. Guedes +2 more·Dec 18, 2024
Ultracold trapped atomic ions excited into highly energetic Rydberg states constitute a promising platform for scalable quantum information processing. Elementary building blocks for such tasks are high-fidelity and sufficiently fast entangling two-q...
Quantum community detection via deterministic elimination
Chukwudubem Umeano, Stefano Scali, O. Kyriienko·Dec 17, 2024
We propose a quantum algorithm for calculating the structural properties of complex networks and graphs. The corresponding protocol——is designed to perform large-scale community and botnet detection, where a specific subgraph of a larger graph is i...
Topological Quantum Spin Glass Order and its realization in qLDPC codes
Benedikt Placke, Tibor Rakovszky, N. P. Breuckmann +1 more·Dec 17, 2024
Ordered phases of matter have close connections to computation. Two prominent examples are spin glass order, with wide-ranging applications in machine learning and optimization, and topological order, closely related to quantum error correction. Here...
Evolutionary Optimization for Designing Variational Quantum Circuits with High Model Capacity
S. Y. Chen·Dec 17, 2024
Recent advancements in quantum computing (QC) and machine learning (ML) have garnered significant attention, leading to substantial efforts toward the development of quantum machine learning (QML) algorithms to address a variety of complex challenges...
Near-Term Spin-Qubit Architecture Design via Multipartite Maximally Entangled States
Nikiforos Paraskevopoulos, M. Steinberg, B. Undseth +4 more·Dec 17, 2024
The design and benchmarking of quantum computer architectures traditionally rely on practical hardware restrictions, such as gate fidelities, control, and cooling. At the theoretical and software levels, numerous approaches have been proposed for ben...
Simulating imperfect quantum optical circuits using unsymmetrized bases
J. Steinmetz, Maike Ostmann, Alex Neville +2 more·Dec 17, 2024
Fault-tolerant photonic quantum computing requires the generation of large entangled resource states. The required size of these states makes it challenging to simulate the effects of errors such as loss and partial distinguishability. For an interfe...
Security and Fairness in Multiparty Quantum Secret Sharing Protocol
Alessio Di Santo, W. Tiberti, D. Cassioli·Dec 16, 2024
Quantum secret sharing (QSS) is a cryptographic protocol that leverages quantum mechanics to distribute a secret among multiple parties. With respect to the classical counterpart, in QSS, the secret is encoded into quantum states and shared by a deal...
Coherent information as a mixed-state topological order parameter of fermions
Ze-Min Huang, Luis Colmenarez, Markus Müller +1 more·Dec 16, 2024
Quantum error correction protects quantum information against decoherence, provided the noise strength remains below a critical threshold. This threshold marks the critical point for the decoding phase transition. Here, we connect this transition in ...
Fast single-qubit gates for continuous dynamically decoupled systems
M. Senatore, Daniel Campbell, James A. Williams +1 more·Dec 16, 2024
Environmental noise that couples longitudinally to a quantum system dephases that system and can limit its coherence lifetime. Performance using quantum superposition in clocks, information processors, communication networks, and sensors depends on c...
Density Matrix Renormalization Group Study of Domain Wall Qubits
G. Qu, Ji Zou, Daniel Loss +1 more·Dec 16, 2024
Nanoscale topological spin textures in magnetic systems are emerging as promising candidates for scalable quantum architectures. Despite their potential as qubits, previous studies have been limited to semiclassical approaches, leaving a critical gap...
Surveying optically addressable spin qubits for quantum information and sensing technology
Calysta A. Tesiman, Mark Oxborrow, Max Attwood·Dec 15, 2024
Quantum technologies offer ways to solve certain tasks more quickly, efficiently, and with greater precision than their classical counterparts. Yet substantial challenges remain in the construction of sufficiently error-free and scalable quantum plat...
Hybrid of Gradient Descent and Semidefinite Programming for Certifying Multipartite Entanglement Structure
Kai Wu, Zhihua Chen, Zhen-Peng Xu +2 more·Dec 13, 2024
Multipartite entanglement is a crucial resource for a wide range of quantum information processing tasks, including quantum metrology, quantum computing, and quantum communication. The verification of multipartite entanglement, along with an understa...
Crosstalk-induced Side Channel Threats in Multi-Tenant NISQ Computers
Navnil Choudhury, Chaithanya Naik Mude, Sanjay Das +3 more·Dec 13, 2024
As quantum computing rapidly advances, its near-term applications are becoming increasingly evident. However, the high cost and under-utilization of quantum resources are prompting a shift from single-user to multi-user access models. In a multi-tena...