Papers
Live trends in quantum computing research, updated daily from arXiv.
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Hardware platform mentions in abstracts — Photonic leads
Evaluation of Quantum Annealing-based algorithms for flexible job shop scheduling
Philipp Schworm, Xiangqian Wu, Matthias Klar +1 more·Aug 28, 2024
A flexible job shop scheduling problem (FJSSP) poses a complex optimization task in modeling real-world process scheduling tasks with conflicting objectives. To tackle FJSSPs, approximation methods are employed to ensure solutions are within acceptab...
CTRQNets & LQNets: Continuous Time Recurrent and Liquid Quantum Neural Networks
Alejandro Mayorga, Alexander Yuan, Andrew Yuan +2 more·Aug 28, 2024
Neural networks have continued to gain prevalence in the modern era for their ability to model complex data through pattern recognition and behavior remodeling. However, the static construction of traditional neural networks inhibits dynamic intellig...
Studies of the Fermi-Hubbard Model Using Quantum Computing
Adam Prokofiew, N. Sharma, S. Schnetzer·Aug 28, 2024
The use of quantum computers to calculate the ground state (lowest) energies of a spin lattice of electrons described by the Fermi-Hubbard model of great importance in condensed matter physics has been studied. The ability of quantum bits (qubits) to...
Flow of non-classical correlations in cluster states due to projective measurements
Chandan Mahto, Anil Shaji·Aug 28, 2024
We explore the flow of quantum correlations in cluster states defined on ladder type graphs as measurements are done on qubits located on the nodes of the cluster. We focus on three qubits at the end of the ladder and compute the non-classical correl...
Statistical modeling of quantum error propagation
Z. Ye·Aug 28, 2024
In this paper, I design a new statistical abstract model for studying quantum error propagation. For each circuit, I give the algorithm to construct the Error propagation space-time graph(\textbf{EPSTG}) graph as well as the bipartite reverse spannin...
Single-shot latched readout of a quantum dot qubit using barrier gate pulsing
Sanghyeok Park, Jared Benson, J. Corrigan +4 more·Aug 27, 2024
Latching techniques are widely used to enhance readout of qubits. These methods require precise tuning of multiple tunnel rates, which can be challenging to achieve under realistic experimental conditions, such as when a qubit is coupled to a single ...
Canonical Form and Finite Blocklength Bounds for Stabilizer Codes
Dimiter Ostrev·Aug 27, 2024
First, a canonical form for stabilizer parity check matrices of arbitrary size and rank is derived. Next, it is shown that the closely related canonical form of the Clifford group can be computed in time $O(n^3)$ for $n$ qubits, which improves upon t...
Weakly Fault-Tolerant Computation in a Quantum Error-Detecting Code
Christopher Gerhard, Todd A. Brun·Aug 27, 2024
Many current quantum error-correcting codes that achieve full fault tolerance suffer from having low ratios of logical to physical qubits and significant overhead. This makes them difficult to implement on current noisy intermediate-scale quantum (NI...
Practical Quantum Advantage on Partially Fault-Tolerant Quantum Computer
Riki Toshio, Yutaro Akahoshi, J. Fujisaki +3 more·Aug 27, 2024
Achieving quantum speedups in practical tasks remains challenging for current noisy intermediate-scale quantum (NISQ) devices. These devices always encounter significant obstacles such as inevitable physical errors and the limited scalability of curr...
Compilation of Trotter-Based Time Evolution for Partially Fault-Tolerant Quantum Computing Architecture
Yutaro Akahoshi, Riki Toshio, J. Fujisaki +3 more·Aug 27, 2024
Achieving practical quantum speedup with limited resources is a crucial challenge in both academic and industrial communities. To address this, a partially fault-tolerant quantum computing architecture called ``space-time efficient analog rotation qu...
RESCQ: Realtime Scheduling for Continuous Angle Quantum Error Correction Architectures
Sayam Sethi, J. Baker·Aug 27, 2024
In order to realize large scale quantum error correction (QEC), resource states, such as |T〉, must be prepared which is expensive in both space and time. In order to circumvent this problem, alternatives have been proposed, such as the production of ...
Probing the Page transition via approximate quantum error correction
Haocheng Zhong·Aug 27, 2024
In recent years, there is a huge progress in understanding the black hole information problem, and the key is that the black hole entropy of radiation should be calculated by the island formula, which describes the Page curve to ensure the unitarity ...
Automated Synthesis of Quantum Algorithms via Classical Numerical Techniques
Yuxin Huang, Benjamin E. Grossman‐Ponemon, David Hyde·Aug 27, 2024
We apply numerical optimization and linear algebra algorithms for classical computers to the problem of automatically synthesizing algorithms for quantum computers. Using our framework, we apply several common techniques from these classical domains ...
Quantum multi-row iteration algorithm for linear systems with non-square coefficient matrices
Weitao Lin, Guojing Tian, Xiaoming Sun·Aug 27, 2024
In the field of quantum linear system algorithms, quantum computing has realized exponential computational advantages over classical computing. However, the focus has been on square coefficient matrices, with few quantum algorithms addressing non-squ...
Artificially intelligent Maxwell’s demon for optimal control of open quantum systems
P. A. Erdman, Robert Czupryniak, Bibek Bhandari +4 more·Aug 27, 2024
Feedback control of open quantum systems is of fundamental importance for practical applications in various contexts, ranging from quantum computation to quantum error correction and quantum metrology. Its use in the context of thermodynamics further...
Small graph perturbations, QAOA, and the MaxCut problem
Leonardo Lavagna, Simone Piperno, Andrea Ceschini +1 more·Aug 27, 2024
We investigate the Maximum Cut (MaxCut) problem on different graph classes with the quantum approximate optimization algorithm (QAOA) using symmetries. In particular, heuristics on the relationship between graph symmetries and the approximation ratio...
Comprehensive explanation of ZZ coupling in superconducting qubits
Simon Pettersson Fors, Jorge Fern'andez-Pend'as, A. F. Kockum·Aug 27, 2024
A major challenge for scaling up superconducting quantum computers is unwanted couplings between qubits, which lead to always-on ZZ couplings that impact gate fidelities by shifting energy levels conditional on qubit states. To tackle this challenge,...
Toward Mixed Analog-Digital Quantum Signal Processing: Quantum AD/DA Conversion and the Fourier Transform
Yuan Liu, John M. Martyn, Jasmine Sinanan-Singh +3 more·Aug 27, 2024
Signal processing stands as a pillar of classical computation and modern information technology, applicable to both analog and digital signals. Recently, advancements in quantum information science have suggested that quantum signal processing (QSP) ...
Continuous Optimization for Decoding Errors
Shashank Srivastava·Aug 26, 2024
Error-correcting codes are one of the most fundamental objects in pseudorandomness, with applications in communication, complexity theory, and beyond. Codes are useful because of their ability to support decoding, which is the task of recovering a co...
Theoretical framework for quantum associative memories
Adrià Labay-Mora, Eliana Fiorelli, R. Zambrini +1 more·Aug 26, 2024
Associative memory (AM) refers to the ability to relate a memory with an input and targets the restoration of corrupted patterns. It has been intensively studied in classical physical systems, as in neural networks where an attractor dynamics settles...