Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Quantum calculation for two-stream instability and advection test of Vlasov–Maxwell equations: numerical evaluation of Hamiltonian simulation
Hayato Higuchi, J. Pedersen, Kiichiro Toyoizumi +3 more·Aug 21, 2024
The Vlasov–Maxwell equations provide kinetic simulations of collisionless plasmas, but numerically solving them on classical computers is often impractical. This is due to the computational resource constraints imposed by the time evolution in the si...
Exact spectral gaps of random one-dimensional quantum circuits
Andrew E. Deneris, Pablo Bermejo, Paolo Braccia +2 more·Aug 20, 2024
The spectral gap of local random quantum circuits is a fundamental property that determines how close the moments of the circuit's unitaries match those of a Haar random distribution. When studying spectral gaps, it is common to bound these quantitie...
SWAP-less Implementation of Quantum Algorithms
Berend Klaver, Stefan Rombouts, Michael Fellner +4 more·Aug 20, 2024
We present a formalism based on tracking the flow of parity quantum information to implement algorithms on devices with limited connectivity without qubit overhead, SWAP operations or shuttling. Instead, we leverage the fact that entangling gates not...
Optimizing Quantum Fourier Transformation (QFT) Kernels for Modern NISQ and FT Architectures
Yuwei Jin, Xiangyu Gao, Minghao Guo +4 more·Aug 20, 2024
Rapid development in quantum computing leads to the appearance of several quantum applications. Quantum Fourier Transformation (QFT) sits at the heart of many of these applications. Existing work leverages SAT solver or heuristics to generate a hardw...
Solving an industrially relevant quantum chemistry problem on quantum hardware
Ludwig Nützel, Alexander Gresch, Lukas Hehn +10 more·Aug 20, 2024
Quantum chemical calculations are among the most promising applications for quantum computing. Implementations of dedicated quantum algorithms on available quantum hardware were so far, however, mostly limited to comparatively simple systems without ...
Stabilizer codes for Heisenberg-limited many-body Hamiltonian estimation
S. Antu, Sisi Zhou·Aug 20, 2024
Estimating many-body Hamiltonians has wide applications in quantum technology. By allowing coherent evolution of quantum systems and entanglement across multiple probes, the precision of estimating a fully connected k-body interaction can scale up to...
Implementation of a continuous-time quantum walk on a sparse graph
Zhaoyang Chen, Guanzhong Li, Lvzhou Li·Aug 20, 2024
Continuous-time quantum walks (CTQWs) play a crucial role in quantum computing, especially for designing quantum algorithms. However, how to efficiently implement CTQWs is a challenging issue. In this paper, we study implementation of CTQWs on sparse...
Improved Differential Evolution based Feature Selection through Quantum, Chaos, and Lasso
Yelleti Vivek, S. Vadlamani, Vadlamani Ravi +1 more·Aug 20, 2024
Modern deep learning continues to achieve outstanding performance on an astounding variety of high-dimensional tasks. In practice, this is obtained by fitting deep neural models to all the input data with minimal feature engineering, thus sacrificing...
Enhanced Shadow Tomography of Molecular Excited States from Enforcing $N$-representability Conditions by Semidefinite Programming
Irma Avdic, D. Mazziotti·Aug 20, 2024
Excited-state properties of highly correlated systems are key to understanding photosynthesis, luminescence, and the development of novel optical materials, but accurately capturing their interactions is computationally costly. We present an algorith...
Post-Quantum Secure UE-to-UE Communications
Sanzida Hoque, Abdullah Aydeger, Engin Zeydan·Aug 20, 2024
The rapid development of quantum computing poses a significant threat to the security of current cryptographic systems, including those used in User Equipment (UE) for mobile communications. Conventional cryptographic algorithms such as Rivest–Shamir...
Bounding the Systematic Error in Quantum Error Mitigation due to Model Violation
L. Govia, S. Majumder, S.V. Barron +7 more·Aug 20, 2024
Quantum error mitigation is a promising route to achieving quantum utility, and potentially quantum advantage in the near term. Many state-of-the-art error-mitigation schemes use knowledge of the errors in the quantum processor, which opens up the qu...
Quantum machine learning algorithms for anomaly detection: A review
Sebastiano Corli, Lorenzo Moro, Daniele Dragoni +2 more·Aug 20, 2024
The advent of quantum computers has justified the development of quantum machine learning algorithms , based on the adaptation of the principles of machine learning to the formalism of qubits. Among such quantum algorithms, anomaly detection represen...
Calculating the Energy Profile of an Enzymatic Reaction on a Quantum Computer.
Patrick Ettenhuber, Mads Bøttger Hansen, Irfansha Shaik +7 more·Aug 20, 2024
Quantum computing (QC) provides a promising avenue for enabling quantum chemistry calculations, which are classically impossible due to computational complexity that increases exponentially with system size. As fully fault-tolerant algorithms and har...
Toward a Theory of Phase Transitions in Quantum Control Landscapes
Nicolo Beato, Pranay Patil, Marin Bukov·Aug 20, 2024
Control landscape phase transitions (CLPTs) occur as abrupt changes in the cost function landscape upon varying a control parameter, and can be revealed by non-analytic points in statistical order parameters. A prime example are quantum speed limits ...
Advances in quantum algorithms for the shortest path problem
Adam Wesołowski, Stephen Piddock·Aug 19, 2024
Given an undirected, weighted graph, with $n$ vertices and $m$ edges, and two special vertices $s$ and $t$, the problem is to find the shortest path between them. We give two bounded-error quantum algorithms with improved runtime in the adjacency lis...
Coprime Bivariate Bicycle Codes and Their Layouts on Cold Atoms
Ming Wang, Frank Mueller·Aug 19, 2024
Quantum computing is deemed to require error correction at scale to mitigate physical noise by reducing it to lower noise levels while operating on encoded logical qubits. Popular quantum error correction schemes include CSS code, of which surface co...
Dual Role of Squeezed-Reservoir in Quantum Phase Synchronization: Boosting and Blockade
Xing Xiao, Tian-Xiang Lu, Wo-Jun Zhong +1 more·Aug 19, 2024
This study explores the dual role of a squeezed reservoir in controlling the quantum phase synchronization of a driven two-level system. We first demonstrate, through a Liouvillian eigen-spectrum analysis, that the squeezed reservoir can induce a sta...
On the non-Markovian quantum control dynamics
Haijin Ding, Nina H. Amini, John E. Gough +1 more·Aug 19, 2024
In this paper, we study both open-loop control and closed-loop measurement feedback control of non-Markovian quantum dynamics arising from the interaction between a quantum system and its environment. We use the widely studied cavity quantum electrod...
Angstrom-scale ion-beam engineering of ultrathin buried oxides for quantum and neuro-inspired computing
N. Smirnov, E. Krivko, D. Moskaleva +18 more·Aug 19, 2024
Multilayer nanoscale systems incorporating buried ultrathin tunnel oxides, 2D materials, and solid electrolytes are crucial for next-generation logics, memory, quantum and neuro-inspired computing. Still, an ultrathin layer control at angstrom scale ...
Recognizing Beam Profiles from Silicon Photonics Gratings using Transformer Model
Y. Lim, Hong Yu Li, S. Goh +3 more·Aug 19, 2024
Over the past decade, there has been extensive work in developing integrated silicon photonics (SiPh) gratings for the optical addressing of trapped ion qubits among the ion trap quantum computing community. However, when viewing beam profiles from g...