{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"对一维格点中不同电子自旋交换如何构成及所构成的能量矩阵进行讨论,为纠缠度和量子计算提供重要依据.研究方法是:一维格点被电子填充分为单、双占据及二者共存三种情况.相邻格点中电子自旋交换分两类,第Ⅰ类:相邻格点最相邻电子自旋交换;第Ⅱ类:\"间隔\"交换,分为\"左间隔\"与\"右间隔\"两种交换(即格点左(右)侧电子与相邻格点左(右)侧电子自旋之间的交换).将一维体系的哈密顿算符作用于完备基矢(用置换群所构建)形成能量矩阵.计算结果: (1)位型[4,2]的第Ⅰ类自旋交换在格点单、双占据及格点单、双占据共存三种情况时所得矩阵只在对称填充时相同,别况均不同. (2)位型[4,2]在格点双占据的第Ⅱ类与第Ⅰ类自旋交换所形成的矩阵只在格点被对称填充时相同,别况均不同;自旋\"左间隔\"交换与\"右间隔\"交换时,同样哈密顿算符作用于同样完备基矢所得矩阵有些相同,有些不同.最后说明所计算的不同位型矩阵的规律及研究意义.","authors":[{"authorName":"韩文娟","id":"a1bd5f73-aac5-4fa6-9b08-0965c500d3e9","originalAuthorName":"韩文娟"},{"authorName":"周勋","id":"15fb0b79-7217-4380-bc1c-e2215b06a52d","originalAuthorName":"周勋"},{"authorName":"张太荣","id":"2f9a0266-81c4-40ca-b191-ecf5bc247949","originalAuthorName":"张太荣"}],"doi":"10.3969/j.issn.1007-5461.2009.03.010","fpage":"306","id":"9835eaec-609f-49be-8a6f-f183cd0b259d","issue":"3","journal":{"abbrevTitle":"LZDZXB","coverImgSrc":"journal/img/cover/LZDZXB.jpg","id":"53","issnPpub":"1007-5461","publisherId":"LZDZXB","title":"量子电子学报 "},"keywords":[{"id":"2d862807-788b-4aae-ab75-f4407c26ab15","keyword":"量子光学","originalKeyword":"量子光学"},{"id":"695160f4-dc80-4909-8a07-43883edacae8","keyword":"","originalKeyword":"海森堡链"},{"id":"5afddca3-1bad-4c6d-936c-ede0ca30d760","keyword":"矩阵","originalKeyword":"矩阵"},{"id":"7ce2ec59-ebe9-4441-987a-bb6b1b5c8b94","keyword":"哈密顿算符","originalKeyword":"哈密顿算符"},{"id":"6f7acb66-1634-4ce7-ac35-b8257a97ceba","keyword":"电子自旋","originalKeyword":"电子自旋"},{"id":"db8fa029-27da-4b60-a44a-cb74d1200790","keyword":"基矢","originalKeyword":"基矢"}],"language":"zh","publisherId":"lzdzxb200903010","title":"一维格点中不同电子自旋交换构成能量矩阵的方法","volume":"26","year":"2009"},{"abstractinfo":"研究了各向同性XY在非均匀磁场中纠缠的含时演化以及热纠缠的问题.纠缠在量子信息领域是十分重要的资源,关于纠缠的度量和含时演化的研究非常必要.对共生纠缠度进行了理论计算,通过数值模拟进行了分析.如果外磁场很小,最近邻耦合系数很大,共生纠缠度就在0和1之间振荡.如果外磁场很大,最近邻耦合系数很小,共生纠缠度的最大值会变小,甚至会消失.同时,随着自旋中自旋数目的增加,纠缠会减小.随着温度的升高,热纠缠会快速下降.随着外磁场的增加,热纠缠也会下降.只有系统的非均匀度增加时,热纠缠才会增加.","authors":[{"authorName":"程明","id":"e1b76e39-5c2f-415b-b1aa-05ff1b0bc64b","originalAuthorName":"程明"},{"authorName":"朱士群","id":"6706424e-8967-4304-805f-cfae6f7b1bcd","originalAuthorName":"朱士群"}],"doi":"10.3969/j.issn.1007-5461.2012.04.011","fpage":"448","id":"617f3743-8241-4651-b8e0-67d8061d2947","issue":"4","journal":{"abbrevTitle":"LZDZXB","coverImgSrc":"journal/img/cover/LZDZXB.jpg","id":"53","issnPpub":"1007-5461","publisherId":"LZDZXB","title":"量子电子学报 "},"keywords":[{"id":"3e39ab08-f948-4f02-8531-cf9b784fae79","keyword":"量子光学","originalKeyword":"量子光学"},{"id":"339629e1-25fe-4188-aa93-bae815aa473e","keyword":"非均匀","originalKeyword":"非均匀海森堡链"},{"id":"bad55b2e-9c1f-432f-9d7d-37e487474b5c","keyword":"共生纠缠度","originalKeyword":"共生纠缠度"},{"id":"41c337ac-5c9b-4727-8b6b-bc7b78b0affa","keyword":"纠缠演化","originalKeyword":"纠缠演化"},{"id":"36f6cbc2-0834-4be8-bef3-c027d5103bec","keyword":"热纠缠","originalKeyword":"热纠缠"},{"id":"101ad205-9e47-485a-9fb5-fdbfdceb1136","keyword":"外磁场","originalKeyword":"外磁场"}],"language":"zh","publisherId":"lzdzxb201204011","title":"非均匀XY周期性的纠缠","volume":"29","year":"2012"},{"abstractinfo":"采用Negativity理论研究了匀强磁场下自旋为1的XXZ的纠缠特性,结果发现,两粒子情形下磁场的存在能明显的降低纠缠,但磁场并不改变纠缠为零时的临界温度,临界温度随着各向异性参数的增加而增加.而且纠缠伴随各向异性参量的变化是一个先增加后减小的过程.研究表明多粒子情况下,不同粒子数的纠缠都伴随△有较大的起伏:并且起初临界温度随着粒子数目的增加而降低,但是随着粒子数的进一步增加,纠缠的临界温度趋于相同.","authors":[{"authorName":"秦猛","id":"12375e9f-b20a-423b-9899-09f17c574d13","originalAuthorName":"秦猛"},{"authorName":"陶应娟","id":"7ef98d5a-0be3-4147-94fb-528079dfcb08","originalAuthorName":"陶应娟"},{"authorName":"胡明亮","id":"46d258a0-160c-47a0-8728-810a91512be9","originalAuthorName":"胡明亮"},{"authorName":"田东平","id":"fb5b748a-94d3-4314-8ba5-df70bbaf63be","originalAuthorName":"田东平"}],"doi":"10.3969/j.issn.1007-5461.2008.03.010","fpage":"302","id":"c2260dff-b511-4c9a-bca0-99c1cbc65820","issue":"3","journal":{"abbrevTitle":"LZDZXB","coverImgSrc":"journal/img/cover/LZDZXB.jpg","id":"53","issnPpub":"1007-5461","publisherId":"LZDZXB","title":"量子电子学报 "},"keywords":[{"id":"67146593-15d9-4e8e-b1af-e2ca33ad30b4","keyword":"量子信息","originalKeyword":"量子信息"},{"id":"187b5bae-a4a3-4390-9e5b-7a14b757b093","keyword":"两体热纠缠","originalKeyword":"两体热纠缠"},{"id":"b7a49078-5dc9-4c6a-ae89-370d90bb1104","keyword":"Negativity理论","originalKeyword":"Negativity理论"},{"id":"b5b7293f-939f-4be0-a4d8-c4241cf82dd0","keyword":"XXZ","originalKeyword":"海森堡XXZ链"}],"language":"zh","publisherId":"lzdzxb200803010","title":"自旋为1的XXZ两体纠缠","volume":"25","year":"2008"},{"abstractinfo":"介绍了模型的不同位型[N,n](N为总格点数,n为格点中自旋向下的电子数)中的体现本征值获取难易程度的本征值获取概率及其相应信息熵(香农所定义的)和体现模型体系关联程度的自旋向下电子发现概率、每一粒子的von Neumann及体系的平均von Neumann熵,可为量子计算与信息传递提供启示性信息.研究结果表明:1)事件发生概率大于(小于)50%时,信息熵随概率增加而减小(增加).2)不同位型[N,n],当n(N)同,N(n)增加时:本征值获取概率减小,其相应的信息熵正确反映本征值获取的难易程度;模型参数一定时,格点中自旋向下电子发现概率与每一粒子的von Neumann熵及体系的平均von Neumann熵都分别减小(增加).3)位型[N,n]相同时,每一粒子的von Neumann熵及体系的平均von Neumann熵随参数变化时出现拐点,显示体系发生量子相变的信息.4)同位型[N,n]且同参数时处于对称位置粒子的von Neumann熵相同.","authors":[{"authorName":"韩文娟","id":"e625db4f-79f7-4647-9fd2-4af64ccfaf13","originalAuthorName":"韩文娟"},{"authorName":"周勋","id":"b9b2b3c3-26af-4033-9645-85002b2524ec","originalAuthorName":"周勋"},{"authorName":"张太荣","id":"69989a26-da8a-4e12-88c9-c2915d00296a","originalAuthorName":"张太荣"}],"doi":"10.3969/j.issn.1007-5461.2012.04.008","fpage":"427","id":"c29192e1-30c1-4f7b-9c08-30272d19f44c","issue":"4","journal":{"abbrevTitle":"LZDZXB","coverImgSrc":"journal/img/cover/LZDZXB.jpg","id":"53","issnPpub":"1007-5461","publisherId":"LZDZXB","title":"量子电子学报 "},"keywords":[{"id":"f1be1b24-1212-420f-add0-a5aa91660690","keyword":"量子光学","originalKeyword":"量子光学"},{"id":"e9ccd467-ef61-43c2-887f-4ac38ddd3cb9","keyword":"概率","originalKeyword":"概率"},{"id":"f2852a18-0d0b-463d-b245-145ddfd23684","keyword":"信息熵","originalKeyword":"信息熵"},{"id":"5a2258f1-d44e-4c9b-be1f-c8024ba14ac4","keyword":"von Neumann熵","originalKeyword":"von Neumann熵"},{"id":"226f84dc-861f-43db-9baf-b8aee327946d","keyword":"模型","originalKeyword":"海森堡模型"},{"id":"3680053f-ad55-447a-b587-9fefe817870a","keyword":"电子自旋","originalKeyword":"电子自旋"}],"language":"zh","publisherId":"lzdzxb201204008","title":"模型中概率及相应熵的计算分析","volume":"29","year":"2012"},{"abstractinfo":"使用并行算法(简称Z分法)Fortran编程计算获取模型位型[N,k](N为总格点数,k为格点中自旋向上的电子数)最小本征值的最短时间.使用置换群方法产生模型的能量矩阵,将能量矩阵对角化所得到的本征值构成数据群,采用Z(Z=1,2…)分法Fortran编程计算获得群中最小数据的最短(或最长)时间.结果表明:同一位型[N,k],使用2分法获取模型位型[N,k]最小本征值的时间最长,而不等分或满等分(此时Z=1或位型[N,k]的矩阵维数)时的时间最短且二者相等;对于不同位型[N,k],当N(k)同,k(N)增大且Z相同时,获取模型最小本征值的最短时间增加.","authors":[{"authorName":"黄敏","id":"c62c950f-395d-45b9-abad-25f13cb8f2a3","originalAuthorName":"黄敏"},{"authorName":"韩文娟","id":"44573fc0-e3c0-4c46-a348-47e5a5c22896","originalAuthorName":"韩文娟"},{"authorName":"刘海","id":"643318e4-08dd-4ea0-ad8b-b5cc1a635c82","originalAuthorName":"刘海"}],"doi":"10.3969/j.issn.1007-5461.2014.01.012","fpage":"80","id":"877ac5ed-d421-4a15-81e0-0a54610ffd0a","issue":"1","journal":{"abbrevTitle":"LZDZXB","coverImgSrc":"journal/img/cover/LZDZXB.jpg","id":"53","issnPpub":"1007-5461","publisherId":"LZDZXB","title":"量子电子学报 "},"keywords":[{"id":"b18e7a9e-596a-419c-b736-013107727950","keyword":"量子光学","originalKeyword":"量子光学"},{"id":"9e3a0f7c-7016-4918-b4d0-1b97d16297f8","keyword":"并行算法","originalKeyword":"并行算法"},{"id":"c2bd80ea-8688-4619-a80a-bea22d40ed68","keyword":"本征值","originalKeyword":"本征值"},{"id":"ac492ec3-7386-4e21-8810-a0e1dbc06e70","keyword":"模型","originalKeyword":"海森堡模型"},{"id":"6de8f8f6-0122-4029-be5c-73118f17fea5","keyword":"时间","originalKeyword":"时间"}],"language":"zh","publisherId":"lzdzxb201401012","title":"关于模型中一种并行算法实现的讨论","volume":"31","year":"2014"},{"abstractinfo":"计算了一维XY模型的基态纠缠度并作相关分析,为量子通信和量子计算提供启示性信息.将von Neumann熵定义的纠缠度与模型的基态本征矢建立联系计算出该模型体系的基态纠缠度.计算结果表明,(1)总格点数N相同,自旋向上电子数k增加时,基态纠缠度η增加;k相同,N增加时,η减小,真实反映了此模型的关联性.(2)N为偶数,位型[N,N/2]时,η=1,体现了自旋格点中自旋向上和向下的电子数呈严格的对称性.(3)模型参数不同, η有別.(4)η在整个参数变化区间内的导率一致,体系为有纠缠的连续长程相,属于从有序到有序的相变.","authors":[{"authorName":"韩文娟","id":"993f8d48-b2b3-4081-bd32-6ea2379f6356","originalAuthorName":"韩文娟"},{"authorName":"周勋","id":"8645cede-4218-4902-b9cd-ff0c9a49905b","originalAuthorName":"周勋"}],"doi":"10.3969/j.issn.1007-5461.2009.01.013","fpage":"76","id":"bfe19f80-6499-4404-b79d-26d7c498b298","issue":"1","journal":{"abbrevTitle":"LZDZXB","coverImgSrc":"journal/img/cover/LZDZXB.jpg","id":"53","issnPpub":"1007-5461","publisherId":"LZDZXB","title":"量子电子学报 "},"keywords":[{"id":"cdab95aa-2cbd-4e42-ad25-37bf62f06bfc","keyword":"量子光学","originalKeyword":"量子光学"},{"id":"366d64f7-e81f-47f4-b1ac-bc9451c8c9ff","keyword":"量子纠缠","originalKeyword":"量子纠缠"},{"id":"db0ca767-7642-45d3-b7ba-64a635bee4e4","keyword":"纠缠度","originalKeyword":"纠缠度"},{"id":"e6a135c5-2280-450b-b95d-f6e54d5d40dd","keyword":"von Neumann熵","originalKeyword":"von Neumann熵"},{"id":"725da477-d097-4b5e-89d8-54a5dd27215e","keyword":"关联","originalKeyword":"关联"}],"language":"zh","publisherId":"lzdzxb200901013","title":"一维XY模型纠缠度的计算与相关分析","volume":"26","year":"2009"},{"abstractinfo":"对于一般形式的含时电容和电感耦合电路,利用Heisenberg对应原理研究了体系的量子经典对应关系以及量子涨落.通过海绘景中的波函数和运动方程的精确解,在大量子数极限下由量子解得到了经典解.对矩阵元中初始相位求平均得到了体系中电荷和磁通量的量子涨落.当电路中的电感随时间指数增加,而电容指数减小时,电路中的电荷和电流的量子涨落也随时间指数减小;当两个分回路中的电容和电感不随时间变化且相等时,发现耦合电容趋于减小电流的量子涨落,而耦合电感趋于减小电荷的量子涨落.","authors":[{"authorName":"李凤敏","id":"224d8682-5043-46d5-bb4c-30e0772ad384","originalAuthorName":"李凤敏"},{"authorName":"盛朝霞","id":"2302ba9d-881f-4ed7-b2de-def59b938b5a","originalAuthorName":"盛朝霞"}],"doi":"10.3969/j.issn.1007-5461.2006.03.027","fpage":"408","id":"777d4f8b-b620-4561-8225-34d31f7bddc5","issue":"3","journal":{"abbrevTitle":"LZDZXB","coverImgSrc":"journal/img/cover/LZDZXB.jpg","id":"53","issnPpub":"1007-5461","publisherId":"LZDZXB","title":"量子电子学报 "},"keywords":[{"id":"c0f784b9-eca9-4a7b-837d-9f76a5846bc7","keyword":"量子光学","originalKeyword":"量子光学"},{"id":"12da3624-9643-47aa-974b-14217d57f503","keyword":"量子涨落","originalKeyword":"量子涨落"},{"id":"b18b58cf-1dab-418b-b37a-ad4c434406c4","keyword":"对应原理","originalKeyword":"对应原理"},{"id":"ed2f92d4-c9ad-4e84-8c48-e2ccf400b526","keyword":"介观电路","originalKeyword":"介观电路"},{"id":"d21641f4-7eb3-4152-80de-e21f52ce67d4","keyword":"谐振子","originalKeyword":"谐振子"}],"language":"zh","publisherId":"lzdzxb200603027","title":"对应原理在含时介观耦合电路中的应用","volume":"23","year":"2006"},{"abstractinfo":"本文利用Jordan-Wigner变换和不变本征算符法计算了低温下自旋为1/2的伯亚铁磁棱型系统的元激发谱,得到了三支没有简并的元激发谱.利用不变本征算符法对系统的哈密顿量进行了对角化,并导出有限温度和外磁场下的系统的配分函数及磁化强度.在绝对零度与有限温度下,通过分析诸交换积分(J1,J2,J3,Jm)对系统的磁化强度随外磁场的变化规律,得到了系统的三个临界磁场强度(HCB,HCE,HCS),并从三支元激发的性质说明了三个临界磁场强度起源及系统的磁化强度随外磁场变化出现1/3磁化平台的起因.","authors":[{"authorName":"王金刚","id":"29e32303-442b-4a42-83a3-c524d44f1931","originalAuthorName":"王金刚"},{"authorName":"成泰民","id":"ad5302bf-6ec5-447a-a8b5-4c4b540cb386","originalAuthorName":"成泰民"}],"doi":"","fpage":"298","id":"aba96aa9-a37e-4b12-912e-8062255d2d48","issue":"4","journal":{"abbrevTitle":"DWWLXB","coverImgSrc":"journal/img/cover/DWWLXB.jpg","id":"19","issnPpub":"1000-3258","publisherId":"DWWLXB","title":"低温物理学报 "},"keywords":[{"id":"aed7ee1a-0c5c-4543-ab13-d9ef4e2ba6b8","keyword":"不变本征算符法","originalKeyword":"不变本征算符法"},{"id":"3d73ff86-9b6f-4bd6-9ed8-7797ccea41e4","keyword":"Jordan-Wigner变换","originalKeyword":"Jordan-Wigner变换"},{"id":"9d2dd877-192e-4f38-9d73-a5a49caa3159","keyword":"临界磁场强度","originalKeyword":"临界磁场强度"},{"id":"4586a71f-6b3b-4f35-a7b2-0aa0949db415","keyword":"磁化强度","originalKeyword":"磁化强度"}],"language":"zh","publisherId":"dwwlxb201404010","title":"低温下自旋为1/2的伯亚铁磁棱型的1/3磁化平台","volume":"36","year":"2014"},{"abstractinfo":"通过在两量子位上分别施加独立可控的外磁场(B+b)和(B -b),以及改变耦合参数Jz、磁场强度B、磁场不均匀度b和系统的温度kT,探讨了两量子比特XXZ模型中量子关联的变化行为,并在相同参数下与热纠缠做了比较.结果表明:量子关联存在的参数范围比热纠缠更广;而且在一定的参数范围内,量子关联和热纠缠的变化展示出不同的行为.","authors":[{"authorName":"许琳","id":"9ce2dc2b-9d02-49bc-af25-d9919018cf10","originalAuthorName":"许琳"},{"authorName":"夏云杰","id":"1c70bdc0-d9c9-4d69-99a3-173bb371a925","originalAuthorName":"夏云杰"}],"doi":"10.3969/j.issn.1007-5461.2012.02.009","fpage":"185","id":"5d3693ec-6cf7-40d1-ad8c-6926331170e3","issue":"2","journal":{"abbrevTitle":"LZDZXB","coverImgSrc":"journal/img/cover/LZDZXB.jpg","id":"53","issnPpub":"1007-5461","publisherId":"LZDZXB","title":"量子电子学报 "},"keywords":[{"id":"a4d6c074-67d9-46a7-ae80-0ea30c8398d5","keyword":"量子光学","originalKeyword":"量子光学"},{"id":"bb749afc-5625-429a-8063-54718cbcf04d","keyword":"量子关联","originalKeyword":"量子关联"},{"id":"d327d405-0fb2-4683-8496-2321de992edb","keyword":"热纠缠","originalKeyword":"热纠缠"},{"id":"e13efd83-4678-4389-8fb8-bc2cac536516","keyword":"quantum discord","originalKeyword":"quantum discord"},{"id":"718d6c1c-575d-4ccb-a6ed-1e6f5eeae2f3","keyword":"XXZ模型","originalKeyword":"海森堡XXZ模型"}],"language":"zh","publisherId":"lzdzxb201202009","title":"外磁场下两量子比特XXZ模型中量子关联和热纠缠的研究","volume":"29","year":"2012"},{"abstractinfo":"抗氧剂2,2’-亚甲基双(6-壬基对甲酚)合成研究中的关键中间体2-壬基对甲酚通过羰基还原制备,羰基还原可以通过黄鸣龙反应或克莱门反应实现,本研究对比了这两种反应在2-壬基对甲酚制备中的应用.","authors":[{"authorName":"李世昌","id":"db74a038-371e-42e7-bf85-321625088118","originalAuthorName":"李世昌"},{"authorName":"敖晓娟","id":"cbd4a9c9-ece7-4b8e-ab19-52da5aae4411","originalAuthorName":"敖晓娟"},{"authorName":"王庆","id":"db739249-4ce8-454f-96cc-bc3826fd5a80","originalAuthorName":"王庆"},{"authorName":"王浩江","id":"af600823-da5f-403b-a2e0-58117f49523d","originalAuthorName":"王浩江"},{"authorName":"谭卓华","id":"6c59909e-895b-46f4-846a-68afd16abf85","originalAuthorName":"谭卓华"},{"authorName":"王飞","id":"905c6179-a821-4ea6-8a47-92a3af520bd9","originalAuthorName":"王飞"},{"authorName":"杨育农","id":"43bf9cea-7e94-44c9-9d1b-1fee636da7f5","originalAuthorName":"杨育农"}],"doi":"","fpage":"57","id":"278ee987-864c-4dee-a9e9-e19cd3f3813d","issue":"4","journal":{"abbrevTitle":"HCCLLHYYY","coverImgSrc":"journal/img/cover/HCCLLHYYY.jpg","id":"42","issnPpub":"1671-5381","publisherId":"HCCLLHYYY","title":"合成材料老化与应用"},"keywords":[{"id":"6b9c3ec2-39eb-45a4-84d6-eaf5d81d0c4e","keyword":"羰基还原","originalKeyword":"羰基还原"},{"id":"da7607f9-8600-46af-bcec-b3f9ad9f0969","keyword":"亚甲基","originalKeyword":"亚甲基"},{"id":"eb70729d-0841-4a0d-a535-6aee0cf18168","keyword":"黄鸣龙反应","originalKeyword":"黄鸣龙反应"},{"id":"b3ed2ff4-f9ad-41df-967c-6e4db65bbc10","keyword":"克莱门反应","originalKeyword":"克莱门森反应"}],"language":"zh","publisherId":"hccllhyyy201604013","title":"黄鸣龙反应和克莱门反应在制备长烷基酚中的应用","volume":"45","year":"2016"}],"totalpage":371,"totalrecord":3705}