量子信息科学期刊(英文)最新文献

Toward Constructing a Continuous Logical Operator for Error-Corrected Quantum Sensing 构造用于纠错量子传感的连续逻辑算子

量子信息科学期刊(英文) Pub Date : 2023-04-30 DOI: 10.4236/jqis.2023.132004

Cameron Cianci

{"title":"Toward Constructing a Continuous Logical Operator for Error-Corrected Quantum Sensing","authors":"Cameron Cianci","doi":"10.4236/jqis.2023.132004","DOIUrl":"https://doi.org/10.4236/jqis.2023.132004","url":null,"abstract":"Error correction has long been suggested to extend the sensitivity of quantum sensors into the Heisenberg Limit. However, operations on logical qubits are only performed through universal gate sets consisting of finite-sized gates such as Clifford+T. Although these logical gate sets allow for universal quantum computation, the finite gate sizes present a problem for quantum sensing, since in sensing protocols, such as the Ramsey measurement protocol, the signal must act continuously. The difficulty in constructing a continuous logical operator comes from the Eastin-Knill theorem, which prevents a continuous signal from being both fault tolerant to local errors and transverse. Since error correction is needed to approach the Heisenberg Limit in a noisy environment, it is important to explore how to construct fault-tolerant continuous operators. In this paper, a protocol to design continuous logical z-rotations is proposed and applied to the Steane Code. The fault tolerance of the designed operator is investigated using the Knill-Laflamme conditions. The Knill-Laflamme conditions indicate that the diagonal unitary operator constructed cannot be fault tolerant solely due to the possibilities of X errors on the middle qubit. The approach demonstrated throughout this paper may, however, find success in codes with more qubits such as the Shor code, distance 3 surface code, [15,1,3] code, or codes with a larger distance such as the [11,1,5] code.","PeriodicalId":58996,"journal":{"name":"量子信息科学期刊(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43674759","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: 1

What in Fact Proves the Violation of the Bell-Type Inequalities? 实际上是什么证明了贝尔型不等式的违反?

量子信息科学期刊(英文) Pub Date : 2023-03-15 DOI: 10.4236/jqis.2023.131002

Sofia D. Wechsler

引用次数: 0

Bell’s Theorem and Einstein’s Worry about Quantum Mechanics 贝尔定理和爱因斯坦对量子力学的担忧

量子信息科学期刊(英文) Pub Date : 2023-01-01 DOI: 10.4236/jqis.2023.133007

H. Geurdes

引用次数: 1

On Topics in Quantum Games 关于量子游戏的主题

量子信息科学期刊(英文) Pub Date : 2023-01-01 DOI: 10.4236/jqis.2023.133006

Y. Avishai

引用次数: 2

Accelerating Quantum Readiness for Sectors: Risk Management and Strategies for Sectors 加速行业量子准备:行业风险管理和战略

量子信息科学期刊(英文) Pub Date : 2023-01-01 DOI: 10.4236/jqis.2023.132003

A. Alsalman

引用次数: 0

Quantum Algorithm for Mining Frequent Patterns for Association Rule Mining 关联规则挖掘中频繁模式挖掘的量子算法

量子信息科学期刊(英文) Pub Date : 2023-01-01 DOI: 10.4236/jqis.2023.131001

Abdirahman Alasow, M. Perkowski

引用次数: 1

Navigating the Quantum Threat Landscape: Addressing Classical Cybersecurity Challenges 导航量子威胁景观:解决经典网络安全挑战

量子信息科学期刊(英文) Pub Date : 2023-01-01 DOI: 10.4236/jqis.2023.132005

Sabina Sokol

引用次数: 0

Coherence Field Theory: Quantum Coherence as the Basis for a Model of Brain Function 相干场论:作为脑功能模型基础的量子相干性

量子信息科学期刊(英文) Pub Date : 2022-01-01 DOI: 10.4236/jqis.2022.123007

Eric Bond

{"title":"Coherence Field Theory: Quantum Coherence as the Basis for a Model of Brain Function","authors":"Eric Bond","doi":"10.4236/jqis.2022.123007","DOIUrl":"https://doi.org/10.4236/jqis.2022.123007","url":null,"abstract":"A general definition of quantum coherence is developed from analysis of superposition, entanglement, chemical bonding behavior, and basic phenomena of classical mechanics. Various properties of atoms can be better explained if these particles are matter waves that embody a spectrum ranging from relatively coherent to decoherent states. It is demonstrated that quantum coherence so defined can comprehensively explain signal transmission in neurons and dynamics of the brain’s emergent electric field, including potential support for the claim that conscious volition is to some degree real rather than an illusion. Recent research in a physiological context suggests that electromagnetic radiation interacts with molecular structure to comprise integrated energy fields. A mechanism is proposed by which quantum coherence as accelerating electric currents in neurons may result in a broadened spectrum of electromagnetic radiation capable of interacting with molecular complexes in the brain and perhaps elsewhere in an organism to influence vibrational and structural properties. Research should investigate whether a consequent energy field is the basic perceptual substrate, with at least some additive electromagnetic wavelengths of this field involved in generating image percepts insofar as they arise from the body, and electromagnetic vibrations the signature of a more diverse phenomenon by which somewhat nondimensional features of perception such as sound, touch, taste, smell, interoceptive sensations, etc. partially arise. If examination of the brain reveals this organ to be composed of a coherence field, structured at least in part by broadened spectrums of EM radiation interacting with molecular components, this has major implications for furthering our model of the matter/mind interface and possibly physical reality in total.","PeriodicalId":58996,"journal":{"name":"量子信息科学期刊(英文)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2022-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"70421789","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: 2

Making Mistakes Saves the Single Observer’s World of the Extended Wigner’s Friend Experiment 犯错拯救了扩展维格纳朋友实验的单观察者世界

量子信息科学期刊(英文) Pub Date : 2022-01-01 DOI: 10.4236/jqis.2022.121001

S. Łukaszyk

引用次数: 0

The Self-Learning Gate for Quantum Computing 量子计算的自学习门

量子信息科学期刊(英文) Pub Date : 2022-01-01 DOI: 10.4236/jqis.2022.121003

Abdullah Ibrahim S. Alsalman

引用次数: 0