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Live trends in quantum computing research, updated daily from arXiv.
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Qubit Platforms
Hardware platform mentions in abstracts — Photonic leads
Computable Entanglement Cost under Positive Partial Transpose Operations.
Ludovico Lami, Francesco Anna Mele, Bartosz Regula·May 15, 2024
Quantum information theory is plagued by the problem of regularizations, which require the evaluation of formidable asymptotic quantities. This makes it computationally intractable to gain a precise quantitative understanding of the ultimate efficien...
Exploring ground states of Fermi-Hubbard model on honeycomb lattices with counterdiabaticity
Jialiang Tang, Ruoqian Xu, Yongcheng Ding +6 more·May 15, 2024
Exploring the ground state properties of many-body quantum systems conventionally involves adiabatic processes, alongside exact diagonalization, in the context of quantum annealing or adiabatic quantum computation. Shortcuts to adiabaticity by counte...
Toward a linear-ramp QAOA protocol: evidence of a scaling advantage in solving some combinatorial optimization problems
J. A. Montañez-Barrera, K. Michielsen·May 15, 2024
The quantum approximate optimization algorithm (QAOA) is a promising algorithm for solving combinatorial optimization problems (COPs), with performance governed by variational parameters {γi,βi}i=0p−1\documentclass[12pt]{minimal} \usepackage{amsmath}...
Quantum Computing Education for Computer Science Students: Bridging the Gap with Layered Learning and Intuitive Analogies
Anila Mjeda, Hazel Murray·May 15, 2024
Quantum computing presents a transformative potential for the world of computing. However, integrating this technology into the curriculum for computer science students who lack prior exposure to quantum mechanics and advanced mathematics remains a c...
Demonstrating a universal logical gate set in error-detecting surface codes on a superconducting quantum processor
Jiaxuan Zhang, Zhao-Yun Chen, Yun-Jie Wang +6 more·May 15, 2024
Fault-tolerant quantum computing (FTQC) is essential for achieving large-scale practical quantum computation. Implementing arbitrary FTQC requires the execution of a universal gate set on logical qubits, which is highly challenging. Particularly, in ...
Augmenting Density Matrix Renormalization Group with Clifford Circuits.
Xiangjian Qian, Jiale Huang, Mingpu Qin·May 15, 2024
The density matrix renormalization group (DMRG) is widely acknowledged as a highly effective and accurate method for solving one-dimensional quantum many-body systems. However, the direct application of DMRG to the study of two-dimensional systems en...
A Quantum of QUIC: Dissecting Cryptography with Post-Quantum Insights
Marcel Kempf, Nikolas Gauder, Benedikt Jaeger +2 more·May 15, 2024
QUIC is a new network protocol standardized in 2021. It was designed to replace the TCP/TLS stack and is based on UDP. The most current web standard HTTP/3 is specifically designed to use QUIC as transport protocol. QUIC claims to provide secure and ...
Finite-size catalysis in quantum resource theories
Patryk Lipka-Bartosik, Kamil Korzekwa·May 14, 2024
Quantum catalysis, the ability to enable previously impossible transformations by using auxiliary systems without degrading them, has emerged as a powerful tool in various resource theories. Although catalytically enabled state transformations have b...
A Methodology for Comparing and Benchmarking Quantum Devices
Jessica Park, Susan Stepney, Irene D’Amico·May 14, 2024
Quantum Computing (QC) is undergoing a high rate of development, investment and research devoted to its improvement.However, there is little consensus in the industry and wider literature as to what improvement might consist of beyond ambiguous state...
Measurement-based quantum machine learning
Luis Mantilla Calder'on, R. Raussendorf, P. Feldmann +1 more·May 14, 2024
Quantum machine learning (QML) leverages quantum computing for classical inference, furnishes the processing of quantum data with machine-learning methods, and provides quantum algorithms adapted to noisy devices. Typically, QML proposals are framed ...
Calculating response functions of coupled oscillators using quantum phase estimation
S. Danz, Mario Berta, Stefan Schroder +3 more·May 14, 2024
We study the problem of estimating frequency response functions of systems of coupled, classical harmonic oscillators using a quantum computer. The functional form of these response functions can be mapped to a corresponding eigenproblem of a Hermiti...
Unveiling quantum phase transitions from traps in variational quantum algorithms
C. Cao, F. M. Gambetta, Ashley Montanaro +1 more·May 14, 2024
Understanding quantum phase transitions in physical systems is fundamental to characterize their behavior at low temperatures. Achieving this requires both accessing good approximations to the ground state and identifying order parameters to distingu...
Parameter optimization comparison in QAOA using Stochastic Hill Climbing with Random Re-starts and Local Search with entangled and non-entangled mixing operators
Brian García Sarmina, Guo-Hua Sun, Shi-Hai Dong·May 14, 2024
This study investigates the efficacy of Stochastic Hill Climbing with Random Restarts (SHC-RR) compared to Local Search (LS) strategies within the Quantum Approximate Optimization Algorithm (QAOA) framework across various problem models. Employing un...
Efficient and Scalable Architectures for Multi-level Superconducting Qubit Readout
Chaithanya Naik Mude, Satvik Maurya, Benjamin Lienhard +1 more·May 14, 2024
Realizing the full potential of quantum computing requires large-scale quantum computers capable of running quantum error correction (QEC) to mitigate hardware errors and maintain quantum data coherence. While quantum computers operate within a two-l...
Quantum unitary matrix representation of the lattice Boltzmann model for low Reynolds fluid flow simulation
E. D. Kumar, Steven H. Frankel·May 14, 2024
We propose a quantum algorithm for the lattice Boltzmann (LB) method to simulate fluid flows in the low Reynolds number regime. First, we encode the particle distribution functions (PDFs) as probability amplitudes of the quantum state and demonstrate...
Robustness of Interferometric Power to Sudden Death
D. Zhu, F. L. Zhang, J. L. Chen·May 13, 2024
We study the dissipative dynamics of interferometric power as a discordlike measure in Markovian environments, such as dephasing, depolarizing, and generalized amplitude damping. Moreover, we compare the dynamics of interferometric power and entangle...
Phase coding semi-quantum key distribution system based on the Single-state protocol
Si-Ying Huang, Qin-Cheng Hou, Tian-Ming Zhao +5 more·May 13, 2024
Semi-quantum key distribution (SQKD) allows sharing random keys between a quantum user and a classical user, which significantly saves user resources, especially when using the Single-state protocol. However, the operation of the classical user, whic...
High quality Ge layers for Ge/SiGe quantum well heterostructures using chemical vapor deposition
A. Nigro, Eric Jutzi, Nicolas Forrer +3 more·May 13, 2024
A great deal of interest is directed nowadays towards the development of innovative technologies in the field of quantum information and quantum computing, with emphasis on obtaining reliable qubits as building blocks. The realization of highly stabl...
Simulating Floquet scrambling circuits on trapped-ion quantum computers
K. Seki, Yuta Kikuchi, Tomoya Hayata +1 more·May 13, 2024
Complex quantum many-body dynamics spread initially localized quantum information across the entire system. Information scrambling refers to such a process whose simulation is one of the promising applications of quantum computing. We demonstrate the...
From Entanglement to Universality: A Multiparticle Spacetime Algebra Approach to Quantum Computational Gates Revisited
C. Cafaro, Newshaw Bahreyni, Leonardo Rossetti·May 13, 2024
Alternative mathematical explorations in quantum computing can be of great scientific interest, especially if they come with penetrating physical insights. In this paper, we present a critical revisitation of our application of geometric (Clifford) a...