Advanced quantum technologies最新文献_第4页

UltraLow Threshold Phonon Laser in a PT $mathcal {PT}$ -Symmetric Cavity Magnomechanical System

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-27 DOI: 10.1002/qute.202400350

Ming-Song Ding, Li Zheng, Ying Shi, Yu-Jie Liu

{"title":"UltraLow Threshold Phonon Laser in a \u0000 \u0000 PT\u0000 $mathcal {PT}$\u0000 -Symmetric Cavity Magnomechanical System","authors":"Ming-Song Ding, Li Zheng, Ying Shi, Yu-Jie Liu","doi":"10.1002/qute.202400350","DOIUrl":"https://doi.org/10.1002/qute.202400350","url":null,"abstract":"The magnomechanical interaction arises from the coupling between magnons and phonons, an effect that has attracted significant attention. Leveraging this foundation, an ultralow threshold phonon laser within a parity-time (<math>\u0000 <semantics>\u0000 <mi>PT</mi>\u0000 <annotation>$mathcal {PT}$</annotation>\u0000 </semantics></math>)-symmetric cavity magnomechanical (CMM) system is investigated. The <math>\u0000 <semantics>\u0000 <mi>PT</mi>\u0000 <annotation>$mathcal {PT}$</annotation>\u0000 </semantics></math>-symmetry is achieved by incorporating a gain mechanism into the cavity mode and the amplification of phonon excitation number is achieved through the pumping of magnon mode. As the gain and dissipation approach the equilibrium, the mechanical gain undergoes a notable amplification, giving rise to a phonon laser action characterized by an ultralow threshold condition. This finding not only promotes a cross-disciplinary approach in fields such as non-Hermitian physics and quantum magnomechanics but also points to a promising path for enhancing the magnomechanical effect.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143119945","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Approximating Maximum Independent Set on Rydberg Atom Arrays Using Local Detunings 利用局部调谐近似雷德贝格原子阵列上的最大独立集

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-26 DOI: 10.1002/qute.202400291

Hyeonjun Yeo, Ha Eum Kim, Kabgyun Jeong

{"title":"Approximating Maximum Independent Set on Rydberg Atom Arrays Using Local Detunings","authors":"Hyeonjun Yeo, Ha Eum Kim, Kabgyun Jeong","doi":"10.1002/qute.202400291","DOIUrl":"https://doi.org/10.1002/qute.202400291","url":null,"abstract":"Rydberg atom arrays operated by a quantum adiabatic principle are among the most promising quantum simulating platforms due to their scalability and long coherence time. From the perspective of combinatorial optimization, they offer an efficient solution for an intrinsic maximum independent set problem because of the resemblance between the Rydberg Hamiltonian and the cost function of the maximum independent set problem. In this study, a strategy is suggested to approximate maximum independent sets by adjusting local detunings on the Rydberg Hamiltonian according to each vertex's vertex support, which is a quantity that represents connectivity between vertices. By doing so, the strategy successfully reduces the error rate three times for the checkerboard graphs with defects when the adiabaticity is sufficient. In addition, the strategy decreases the error rate for random graphs even when the adiabaticity is relatively insufficient. Moreover, it is shown that the strategy helps to prepare a quantum many-body ground state by raising the fidelity between the evolved quantum state and a 2D cat state on a square lattice. Finally, the strategy is combined with the non-abelian adiabatic mixing and this approach is highly successful in finding maximum independent sets compared to the conventional adiabatic evolution with local detunings.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143119601","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Quantum Tunneling: From Theory to Error-Mitigated Quantum Simulation

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-22 DOI: 10.1002/qute.202400163

Sorana Catrina, Alexandra Băicoianu

{"title":"Quantum Tunneling: From Theory to Error-Mitigated Quantum Simulation","authors":"Sorana Catrina, Alexandra Băicoianu","doi":"10.1002/qute.202400163","DOIUrl":"https://doi.org/10.1002/qute.202400163","url":null,"abstract":"Ever since the discussions about a possible quantum computer arised, quantum simulations have been at the forefront of possible utilities, with the task of quantum simulations being one that promises quantum advantage. Recently, advancements have made it feasible to simulate complex molecules using Variational Quantum Eigensolvers or study the dynamics of many-body spin Hamiltonians. These simulations have the potential to yield valuable outcomes through the application of error mitigation techniques. Simulating smaller models carries a great amount of importance as well and currently, in the Noisy Intermediate Scale Quantum era, is more feasible since it is less prone to errors. The objective of this work is to examine the theoretical background and the circuit implementation of a quantum tunneling simulation, with an emphasis on hardware considerations. This study presents the theoretical background required for such implementation and highlights the main stages of its development. By building on classic approaches of quantum tunneling simulations, this study aims at improving the result of such simulations by employing error mitigation techniques, Zero Noise Extrapolation, and Readout Error Mitigation and uses them in conjunction with multiprogramming of the quantum chip, a technique used for solving the hardware under-utilization problem that arises in such contexts.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/qute.202400163","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143118273","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

Quantum Transfer Learning with Adversarial Robustness for Classification of High-Resolution Image Datasets

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-22 DOI: 10.1002/qute.202400268

Amena Khatun, Muhammad Usman

引用次数: 0

Influence of Pumping Laser Intensity Uniformity on Hybrid Optically Pumped Comagnetometer in the SERF Regime

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-18 DOI: 10.1002/qute.202400222

Longyan Ma, Ye Liu, Haoying Pang, Jiale Quan, Xiaohan Ge, Lihong Duan, Wei Quan

{"title":"Influence of Pumping Laser Intensity Uniformity on Hybrid Optically Pumped Comagnetometer in the SERF Regime","authors":"Longyan Ma, Ye Liu, Haoying Pang, Jiale Quan, Xiaohan Ge, Lihong Duan, Wei Quan","doi":"10.1002/qute.202400222","DOIUrl":"https://doi.org/10.1002/qute.202400222","url":null,"abstract":"The effect of pumping laser intensity uniformity (PLIU) on the operation of a hybrid optically pumped comagnetometer operating in the spin-exchange relaxation-free regime (SERF) regime is investigated in this paper. First, an analytical steady-state output model for the comagnetometer with two alkali-metal atoms and one noble-gas atom is presented. By varying the diameter of the pumping laser beam to control the PLIU, 3D distribution models of the electron spin and nuclear spin polarization under different PLIU conditions are obtained. In the experiment, the effects of PLIU on multi-parameter, low-frequency magnetic-noise suppression capability, and long-term stability of the SERF comagnetometer are studied. The results indicate that within a certain range, increasing the diameter of the pumping laser beam improves the polarization uniformity of the atomic ensemble and reduces the light shift of the comagnetometer. As a result, both the low-frequency magnetic noise suppression capability and the long-term stability of the system increase. However, further reduction of the pumping laser diameter leads to a reversal of the system performance metrics, suggesting the presence of a tipping point. The research presented in this article is critical for advancing the efficient polarization study and hyperpolarization of SERF comagnetometers.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143116267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Quantum Image Secret Sharing Scheme Based on Designated Multi-Verifier Signature

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-18 DOI: 10.1002/qute.202400267

Ye Wang, Guang-Bao Xu, Dong-Huan Jiang

{"title":"A Quantum Image Secret Sharing Scheme Based on Designated Multi-Verifier Signature","authors":"Ye Wang, Guang-Bao Xu, Dong-Huan Jiang","doi":"10.1002/qute.202400267","DOIUrl":"https://doi.org/10.1002/qute.202400267","url":null,"abstract":"This paper presents a quantum image secret sharing scheme based on designated multi-verifier signature. First, <math>\u0000 <semantics>\u0000 <mi>k</mi>\u0000 <annotation>$k$</annotation>\u0000 </semantics></math> share images are generated by a 2D hyperchaotic system incorporating sinusoidal mapping, Henon mapping, and Cubic mapping using the cascade modulation method. Quantum Arnold scrambling and diffusion are performed on the secret image. Subsequently, the concept of designated multi-verifier signature is introduced. In the secret image sharing phase, the pixel values of the share images are used to sign the secret image, and the signed secret image and <math>\u0000 <semantics>\u0000 <mi>k</mi>\u0000 <annotation>$k$</annotation>\u0000 </semantics></math> share images are sent to a trusted third party and <math>\u0000 <semantics>\u0000 <mi>k</mi>\u0000 <annotation>$k$</annotation>\u0000 </semantics></math> designated verifiers, respectively. In this scheme, no carrier images are required, and the share images held by the participants do not contain any information about the secret image. Finally, simulation experiments and security analysis are conducted on IBM Qiskit platform and Matlab software.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-09-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143116268","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Implementation of Entanglement Witnesses with Quantum Circuits 用量子电路实现纠缠见证

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-12 DOI: 10.1002/qute.202400272

Shu-Qian Shen, Xin-Qi Gao, Rui-Qi Zhang, Ming Li, Shao-Ming Fei

引用次数: 0

Enhancing the Sensitivity of Quantum Fiber-Optical Gyroscope via a Non-Gaussian-State Probe 通过非高斯状态探测器提高量子光纤陀螺仪的灵敏度

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-12 DOI: 10.1002/qute.202400270

Wen-Xun Zhang, Rui Zhang, Yunlan Zuo, Le-Man Kuang

{"title":"Enhancing the Sensitivity of Quantum Fiber-Optical Gyroscope via a Non-Gaussian-State Probe","authors":"Wen-Xun Zhang, Rui Zhang, Yunlan Zuo, Le-Man Kuang","doi":"10.1002/qute.202400270","DOIUrl":"10.1002/qute.202400270","url":null,"abstract":"A theoretical scheme to enhance the sensitivity of a quantum fiber-optical gyroscope (QFOG) via a non-Gaussian-state probe based on quadrature measurements of the optical field is proposed. The non-Gaussian-state probe utilizes the product state comprising a photon-added coherent state (PACS) with photon excitations and a coherent state (CS). The sensitivity of the QFOG is studied and it is found that it can be significantly enhanced through increasing the photon excitations in the PACS probe. The influence of photon loss on the performance of QFOG is investigated and it is demonstrated that the PACS probe exhibits robust resistance to photon loss. Furthermore, the performance of the QFOG using the PACS probe against two Gaussian-state probes: the CS probe and the squeezed state (SS) probe is compared and it is indicated that the PACS probe offers a significant advantage in terms of sensitivity, regardless of photon loss, under the constraint condition of the same total number of input photons. Particularly, it is found that the sensitivity of the PACS probe can be three orders of magnitude higher than that of two Gaussian-state probes for certain values of the measured parameter. The capabilities of the non-Gaussian state probe in enhancing the sensitivity and resisting photon loss can have a wide-ranging impact on future high-performance QFOGs.","PeriodicalId":72073,"journal":{"name":"Advanced quantum technologies","volume":"8 1","pages":""},"PeriodicalIF":4.4,"publicationDate":"2024-09-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142262889","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Front Cover: Superconducting Diode Effect in a Constricted Nanowire (Adv. Quantum Technol. 9/2024) 封面：束缚纳米线中的超导二极管效应（Adv. Quantum Technol.）

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-11 DOI: 10.1002/qute.202470023

Xiaofu Zhang, Qingchang Huan, Ruoyan Ma, Xingyu Zhang, Jia Huang, Xiaoyu Liu, Wei Peng, Hao Li, Zhen Wang, Xiaoming Xie, Lixing You

引用次数: 0

Inside Front Cover: Compact and Stable Diamond Quantum Sensors for Wide Applications (Adv. Quantum Technol. 9/2024) 封面内页：面向广泛应用的紧凑稳定的金刚石量子传感器（Adv. Quantum Technol.）

IF 4.4

Advanced quantum technologies Pub Date : 2024-09-11 DOI: 10.1002/qute.202470024

Yuta Kainuma, Yuji Hatano, Takayuki Shibata, Naota Sekiguchi, Akimichi Nakazono, Hiromitsu Kato, Shinobu Onoda, Takeshi Ohshima, Mutsuko Hatano, Takayuki Iwasaki

引用次数: 0