IEEE Transactions on Quantum Engineering最新文献_第9页

Bayesian Optimization for QAOA QAOA的贝叶斯优化

IEEE Transactions on Quantum Engineering Pub Date : 2023-10-16 DOI: 10.1109/TQE.2023.3325167

Simone Tibaldi;Davide Vodola;Edoardo Tignone;Elisa Ercolessi

{"title":"Bayesian Optimization for QAOA","authors":"Simone Tibaldi;Davide Vodola;Edoardo Tignone;Elisa Ercolessi","doi":"10.1109/TQE.2023.3325167","DOIUrl":"10.1109/TQE.2023.3325167","url":null,"abstract":"The quantum approximate optimization algorithm (QAOA) adopts a hybrid quantum-classical approach to find approximate solutions to variational optimization problems. In fact, it relies on a classical subroutine to optimize the parameters of a quantum circuit. In this article, we present a Bayesian optimization procedure to fulfill this optimization task, and we investigate its performance in comparison with other global optimizers. We show that our approach allows for a significant reduction in the number of calls to the quantum circuit, which is typically the most expensive part of the QAOA. We demonstrate that our method works well also in the regime of slow circuit repetition rates and that a few measurements of the quantum ansatz would already suffice to achieve a good estimate of the energy. In addition, we study the performance of our method in the presence of noise at gate level, and we find that for low circuit depths, it is robust against noise. Our results suggest that the method proposed here is a promising framework to leverage the hybrid nature of QAOA on the noisy intermediate-scale quantum devices.","PeriodicalId":100644,"journal":{"name":"IEEE Transactions on Quantum Engineering","volume":"4 ","pages":"1-11"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10286414","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136371790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Optimal Control of the Operating Regime of a Single-Electron Double Quantum Dot 单电子双量子点工作状态的最优控制

IEEE Transactions on Quantum Engineering Pub Date : 2023-10-16 DOI: 10.1109/TQE.2023.3324841

V. Reiher;Y. Bérubé-Lauzière

引用次数: 1

Continuous-Variable Quantum Secret Sharing in Fast-Fluctuating Channels 快速波动信道中的连续变量量子秘密共享

IEEE Transactions on Quantum Engineering Pub Date : 2023-10-09 DOI: 10.1109/TQE.2023.3322171

Fangli Yang;Daowen Qiu;Paulo Mateus

引用次数: 0

Thin Film Materials for Room Temperature Quantum Applications 室温量子应用的薄膜材料

IEEE Transactions on Quantum Engineering Pub Date : 2023-10-06 DOI: 10.1109/TQE.2023.3322342

Farhana Anwar;Rafee Mahbub;Ronald A. Coutu

{"title":"Thin Film Materials for Room Temperature Quantum Applications","authors":"Farhana Anwar;Rafee Mahbub;Ronald A. Coutu","doi":"10.1109/TQE.2023.3322342","DOIUrl":"https://doi.org/10.1109/TQE.2023.3322342","url":null,"abstract":"Thin films with quantum defects are emerging as a potential platform for quantum applications. Quantum defects in some thin films arise due to structural imperfections, such as vacancies or impurities. These defects generate localized electronic states with unique optical and electronic properties. Crystal vacancies or defects that occur when atoms are missing from a crystal lattice can influence a material's quantum properties. In this study, we investigated inexpensive, complementary metal oxide semiconductor compatible materials with quantum defects suitable for room temperature applications. The experiments indicated 5, 15, and 17 ns relaxation times for aluminum nitride, aluminum oxide or alumina, and tin oxides, respectively. For all these materials, distinct resonant peaks are observed at approximately 1.1, 1.6, 2.2, and 2.7 GHz at room temperature (i.e., 21 °C). These peaks exhibit slight frequency shifts, corresponding to known defect locations and thin film material properties. This discovery may lead the way to reliable, cost-effective quantum applications in our daily lives.","PeriodicalId":100644,"journal":{"name":"IEEE Transactions on Quantum Engineering","volume":"4 ","pages":"1-10"},"PeriodicalIF":0.0,"publicationDate":"2023-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10273435","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"109157787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Learning Circular Hidden Quantum Markov Models: A Tensor Network Approach 学习循环隐量子马尔可夫模型:一种张量网络方法

IEEE Transactions on Quantum Engineering Pub Date : 2023-10-02 DOI: 10.1109/TQE.2023.3319254

Mohammad Ali Javidian;Vaneet Aggarwal;Zubin Jacob

引用次数: 3

Spatiotemporal Multiplexed Rydberg Receiver 时空复用里德堡接收机

IEEE Transactions on Quantum Engineering Pub Date : 2023-09-29 DOI: 10.1109/TQE.2023.3319270

Samuel H. Knarr;Victor G. Bucklew;Jerrod Langston;Kevin C. Cox;Joshua C. Hill;David H. Meyer;James A. Drakes

{"title":"Spatiotemporal Multiplexed Rydberg Receiver","authors":"Samuel H. Knarr;Victor G. Bucklew;Jerrod Langston;Kevin C. Cox;Joshua C. Hill;David H. Meyer;James A. Drakes","doi":"10.1109/TQE.2023.3319270","DOIUrl":"https://doi.org/10.1109/TQE.2023.3319270","url":null,"abstract":"Rydberg states of alkali atoms, where the outer valence electron is excited to high principal quantum numbers, have large electric dipole moments allowing them to be used as sensitive, wideband, electric field sensors. These sensors use electromagnetically induced transparency (EIT) to measure incident electric fields. The characteristic timescale necessary to establish EIT determines the effective speed at which the atoms respond to time-varying radio frequency (RF) radiation. Previous studies have predicted that this EIT relaxation rate causes a performance rolloff in EIT-based sensors beginning at an RF data symbol rate of less than 10 MHz. Here, we propose an architecture for increasing the response speed of Rydberg sensors to greater than 100 MHz, through spatiotemporal multiplexing (STM) of the probe laser. We present experimental results validating the architecture's temporal multiplexing component using a pulsed laser. We benchmark a numerical model of the sensor to these experimental data and use the model to predict the STM sensor's performance as an RF communications receiver. For an \u0000<sc>on</small>\u0000–\u0000<sc>off</small>\u0000 keyed waveform, we use the numerical model to predict bit error ratios as a function of RF power and data rates demonstrating the feasibility of error-free communications up to 100 Mb/s with an STM Rydberg sensor.","PeriodicalId":100644,"journal":{"name":"IEEE Transactions on Quantum Engineering","volume":"4 ","pages":"1-8"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/8924785/9998549/10268327.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49981473","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Learning Infused Quantum-Classical Distributed Optimization Technique for Power Generation Scheduling 发电调度中注入学习的量子经典分布式优化技术

IEEE Transactions on Quantum Engineering Pub Date : 2023-09-29 DOI: 10.1109/TQE.2023.3320872

Reza Mahroo;Amin Kargarian

{"title":"Learning Infused Quantum-Classical Distributed Optimization Technique for Power Generation Scheduling","authors":"Reza Mahroo;Amin Kargarian","doi":"10.1109/TQE.2023.3320872","DOIUrl":"https://doi.org/10.1109/TQE.2023.3320872","url":null,"abstract":"The advent of quantum computing can potentially revolutionize how complex problems are solved. This article proposes a two-loop quantum-classical solution algorithm for generation scheduling by infusing quantum computing, machine learning, and distributed optimization. The aim is to facilitate employing noisy near-term quantum machines with a limited number of qubits to solve practical power system optimization problems, such as generation scheduling. The outer loop is a three-block quantum alternating direction method of multipliers (QADMM) algorithm that decomposes the generation scheduling problem into three subproblems, including one quadratically unconstrained binary optimization (QUBO) and two non-QUBOs. The inner loop is a trainable quantum approximate optimization algorithm (T-QAOA) for solving QUBO on a quantum computer. The proposed T-QAOA translates interactions of quantum-classical machines as sequential information and uses a recurrent neural network to estimate variational parameters of the quantum circuit with a proper sampling technique. The T-QAOA determines the QUBO solution in a few quantum-learner iterations instead of hundreds of iterations needed for a quantum-classical solver. The outer three-block alternating direction method of multipliers coordinates QUBO and non-QUBO solutions to obtain the solution to the original problem. The conditions under which the proposed QADMM is guaranteed to converge are discussed. Two mathematical and three generation scheduling cases are studied. Analyses performed on quantum simulators and classical computers show the effectiveness of the proposed algorithm. The advantages of T-QAOA are discussed and numerically compared with QAOA, which uses a stochastic-gradient-descent-based optimizer.","PeriodicalId":100644,"journal":{"name":"IEEE Transactions on Quantum Engineering","volume":"4 ","pages":"1-14"},"PeriodicalIF":0.0,"publicationDate":"2023-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10268041","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"109157790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Architecture for Control of Entanglement Generation Switches in Quantum Networks 量子网络中纠缠产生开关控制体系

IEEE Transactions on Quantum Engineering Pub Date : 2023-09-27 DOI: 10.1109/TQE.2023.3320047

Scarlett Gauthier;Gayane Vardoyan;Stephanie Wehner

{"title":"An Architecture for Control of Entanglement Generation Switches in Quantum Networks","authors":"Scarlett Gauthier;Gayane Vardoyan;Stephanie Wehner","doi":"10.1109/TQE.2023.3320047","DOIUrl":"10.1109/TQE.2023.3320047","url":null,"abstract":"Entanglement between quantum network nodes is often produced using intermediary devices—such as heralding stations—as a resource. When scaling quantum networks to many nodes, requiring a dedicated intermediary device for every pair of nodes introduces high costs. Here, we propose a cost-effective architecture to connect many quantum network nodes via a central quantum network hub called an entanglement generation switch (EGS). The EGS allows multiple quantum nodes to be connected at a fixed resource cost, by sharing the resources needed to make entanglement. We propose an algorithm called the rate control protocol, which moderates the level of competition for access to the hub's resources between sets of users. We proceed to prove a convergence theorem for rates yielded by the algorithm. To derive the algorithm we work in the framework of network utility maximization and make use of the theory of Lagrange multipliers and Lagrangian duality. Our EGS architecture lays the groundwork for developing control architectures compatible with other types of quantum network hubs as well as system models of greater complexity.","PeriodicalId":100644,"journal":{"name":"IEEE Transactions on Quantum Engineering","volume":"4 ","pages":"1-17"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10265162","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135793985","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Emulation of Quantum Algorithms Using CMOS Analog Circuits 基于CMOS模拟电路的量子算法仿真

IEEE Transactions on Quantum Engineering Pub Date : 2023-09-27 DOI: 10.1109/TQE.2023.3319599

Sharan Mourya;Brian R. La Cour;Bibhu Datta Sahoo

{"title":"Emulation of Quantum Algorithms Using CMOS Analog Circuits","authors":"Sharan Mourya;Brian R. La Cour;Bibhu Datta Sahoo","doi":"10.1109/TQE.2023.3319599","DOIUrl":"https://doi.org/10.1109/TQE.2023.3319599","url":null,"abstract":"Quantum computers are regarded as the future of computing, as they are believed to be capable of solving extremely complex problems that are intractable on conventional digital computers. However, near-term quantum computers are prone to a plethora of noise sources that are difficult to mitigate, possibly limiting their scalability and precluding us from running any useful algorithms. Quantum emulation is an alternative approach that uses classical analog hardware to emulate the properties of superposition and entanglement, thereby mimicking quantum parallelism to attain similar speeds. By contrast, the use of classical digital hardware, such as field-programmable gate arrays (FPGAs), is less inefficient at emulating a quantum computer, as it does not take advantage of the fundamentally analog nature of quantum states. Consequently, this approach adds an inherent hardware overhead that also prevents scaling. In this work, an energy-efficient quantum emulator based on analog circuits realized in UMC 180-nm CMOS technology is proposed along with the design methodologies for a scalable computing architecture. A sixfold improvement in power consumption was observed over the FPGA-based approach for a ten-qubit emulation of Grover's search algorithm (GSA). The proposed emulator is also about 400 times faster than a Ryzen 5600x six-core processor performing a simulation of six-qubit Grover's search algorithm.","PeriodicalId":100644,"journal":{"name":"IEEE Transactions on Quantum Engineering","volume":"4 ","pages":"1-16"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/iel7/8924785/9998549/10265215.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49981475","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Initial State Encoding via Reverse Quantum Annealing and H-Gain Features 基于反向量子退火和h增益特性的初始状态编码

IEEE Transactions on Quantum Engineering Pub Date : 2023-09-27 DOI: 10.1109/TQE.2023.3319586

Elijah Pelofske;Georg Hahn;Hristo Djidjev

{"title":"Initial State Encoding via Reverse Quantum Annealing and H-Gain Features","authors":"Elijah Pelofske;Georg Hahn;Hristo Djidjev","doi":"10.1109/TQE.2023.3319586","DOIUrl":"https://doi.org/10.1109/TQE.2023.3319586","url":null,"abstract":"Quantum annealing is a specialized type of quantum computation that aims to use quantum fluctuations in order to obtain global minimum solutions of combinatorial optimization problems. Programmable D-Wave quantum annealers are available as cloud computing resources, which allow users low-level access to quantum annealing control features. In this article, we are interested in improving the quality of the solutions returned by a quantum annealer by encoding an initial state into the annealing process. We explore two D-Wave features that allow one to encode such an initial state: the reverse annealing (RA) and the h-gain (HG) features. RA aims to refine a known solution following an anneal path starting with a classical state representing a good solution, going backward to a point where a transverse field is present, and then finishing the annealing process with a forward anneal. The HG feature allows one to put a time-dependent weighting scheme on linear (\u0000<inline-formula><tex-math>$h$</tex-math></inline-formula>\u0000) biases of the Hamiltonian, and we demonstrate that this feature likewise can be used to bias the annealing to start from an initial state. We also consider a hybrid method consisting of a backward phase resembling RA and a forward phase using the HG initial state encoding. Importantly, we investigate the idea of iteratively applying RA and HG to a problem, with the goal of monotonically improving on an initial state that is not optimal. The HG encoding technique is evaluated on a variety of input problems including the edge-weighted maximum cut problem and the vertex-weighted maximum clique problem, demonstrating that the HG technique is a viable alternative to RA for some problems. We also investigate how the iterative procedures perform for both RA and HG initial state encodings on random whole-chip spin glasses with the native hardware connectivity of the D-Wave Chimera and Pegasus chips.","PeriodicalId":100644,"journal":{"name":"IEEE Transactions on Quantum Engineering","volume":"4 ","pages":"1-21"},"PeriodicalIF":0.0,"publicationDate":"2023-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10265106","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"109157791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1