Quantum bio-informatics V : proceedings of the quantum bio-informatics 2011, Tokyo University of Science, Japan, 7-12 March 2011. Quantum Bio-Informatics (Conference) (5th : 2011 : Tokyo, Japan)最新文献_第5页

Scaling, entanglement, and quantum phase transitions 缩放，纠缠和量子相变

Quantum bio-informatics V : proceedings of the quantum bio-informatics 2011, Tokyo University of Science, Japan, 7-12 March 2011. Quantum Bio-Informatics (Conference) (5th : 2011 : Tokyo, Japan) Pub Date : 2003-07-23 DOI: 10.1117/12.517861

A. Osterloh, L. Amico, G. Falci, R. Fazio

引用次数: 1

Resonant-tunneling solid state NMR quantum computer 共振隧穿固态核磁共振量子计算机

Quantum bio-informatics V : proceedings of the quantum bio-informatics 2011, Tokyo University of Science, Japan, 7-12 March 2011. Quantum Bio-Informatics (Conference) (5th : 2011 : Tokyo, Japan) Pub Date : 2003-07-23 DOI: 10.1117/12.517897

A. V. Tsukanov, A. A. Larionov, K. Valiev

引用次数: 1

Insight into fundamental problems of quantum information in physics 洞察物理学中量子信息的基本问题

Quantum bio-informatics V : proceedings of the quantum bio-informatics 2011, Tokyo University of Science, Japan, 7-12 March 2011. Quantum Bio-Informatics (Conference) (5th : 2011 : Tokyo, Japan) Pub Date : 2003-07-23 DOI: 10.1117/12.517865

B. Grishanin, V. Zadkov

引用次数: 0

Conditional density matrix: subsystems in quantum communication 条件密度矩阵:量子通信中的子系统

Quantum bio-informatics V : proceedings of the quantum bio-informatics 2011, Tokyo University of Science, Japan, 7-12 March 2011. Quantum Bio-Informatics (Conference) (5th : 2011 : Tokyo, Japan) Pub Date : 2003-07-23 DOI: 10.1117/12.517875

V. Belokurov, O. Khrustalev, V. Sadovnichy, O. D. Timofeevskaya

引用次数: 1

Modification of error reconciliation scheme for quantum cryptography 量子密码学错误和解方案的改进

Quantum bio-informatics V : proceedings of the quantum bio-informatics 2011, Tokyo University of Science, Japan, 7-12 March 2011. Quantum Bio-Informatics (Conference) (5th : 2011 : Tokyo, Japan) Pub Date : 2003-07-23 DOI: 10.1117/12.517879

Konstantin Kuritsyn

{"title":"Modification of error reconciliation scheme for quantum cryptography","authors":"Konstantin Kuritsyn","doi":"10.1117/12.517879","DOIUrl":"https://doi.org/10.1117/12.517879","url":null,"abstract":"Quantum cryptography is essentially the quantum key distribution (QKD). In the context of QKD, one from two partners (Alice) generates and sends a sequence of qubits through a private quantum channel to another partner (Bob) and Bob receives the sequence and measures the state of each qubit. After the quantum transmission stage, Alice and Bob have almost identical qubit sequences. The erros are due to physical imperfections in the channel and presence of an eavesdropper. The next stage in QKD is key reconciliation (i.e. finding and correcting discrepancies between Alice's string and that of Bob). This reconciliation can be done by public discussion. Let us suppose there is a secret quantum channel between Alice and Bob through which Alice transmits a n-bit string A=(A1, A2,...,An)ε{0,1}n. Then Bob receives a n-bit string B=(B1, B2,...,Bn)ε{0,1)n. The string B differs from A due to the presence of noise and eavesdropper in the channel. One can estimate the bit error probability in the channel. For example, Bob can choose a random subset from his string and send it to Alice in public. Then Alice compares the received string with her corresponding subset and calculates the total number of protocol steps. The cascade scheme uses the interaction over the public channel to correct the secret strings by dividing them into the blocks of a fixed length. The length is determined from the bit error probability. A simple interactive routine is applied in each of these blocks. An error found in some block results in some action with other blocks. It is important to optimize the error-finding routines in standalone blocks as well as to organize the effective constrution of blocks with the object of protocol benchmark, information leakage and number of interactions between partners.","PeriodicalId":90714,"journal":{"name":"Quantum bio-informatics V : proceedings of the quantum bio-informatics 2011, Tokyo University of Science, Japan, 7-12 March 2011. Quantum Bio-Informatics (Conference) (5th : 2011 : Tokyo, Japan)","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2003-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72696023","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: 8

Quantum computations in nonlinear tunnelly coupled distributed feedback systems 非线性隧道耦合分布反馈系统中的量子计算

Quantum bio-informatics V : proceedings of the quantum bio-informatics 2011, Tokyo University of Science, Japan, 7-12 March 2011. Quantum Bio-Informatics (Conference) (5th : 2011 : Tokyo, Japan) Pub Date : 2003-07-23 DOI: 10.1117/12.517899

A. Prokhorov, A. Y. Leksin, A. Alodjants, S. Arakelian

引用次数: 0

Minimal sets of conditions for distinguishing among separable and entangled states of multiqubit systems 区分多量子位系统的可分态和纠缠态的最小条件集

Quantum bio-informatics V : proceedings of the quantum bio-informatics 2011, Tokyo University of Science, Japan, 7-12 March 2011. Quantum Bio-Informatics (Conference) (5th : 2011 : Tokyo, Japan) Pub Date : 2003-07-23 DOI: 10.1117/12.517906

P. Jorrand, M. Mhalla

引用次数: 0

Computational complexity of classical and quantum dynamics 经典和量子动力学的计算复杂性

Quantum bio-informatics V : proceedings of the quantum bio-informatics 2011, Tokyo University of Science, Japan, 7-12 March 2011. Quantum Bio-Informatics (Conference) (5th : 2011 : Tokyo, Japan) Pub Date : 2003-07-23 DOI: 10.1117/12.517854

I. B. Ivanov

引用次数: 0

Quantum computer on InAs/GaSb heterostructures InAs/GaSb异质结构上的量子计算机

Quantum bio-informatics V : proceedings of the quantum bio-informatics 2011, Tokyo University of Science, Japan, 7-12 March 2011. Quantum Bio-Informatics (Conference) (5th : 2011 : Tokyo, Japan) Pub Date : 2003-07-23 DOI: 10.1117/12.517922

A. Zakharova, S. Yen, K. Chao

{"title":"Quantum computer on InAs/GaSb heterostructures","authors":"A. Zakharova, S. Yen, K. Chao","doi":"10.1117/12.517922","DOIUrl":"https://doi.org/10.1117/12.517922","url":null,"abstract":"The InAs/AlGaSb heterostructures are promising candidates for fabricating the quantum computer due to the large electron g-factor in the bulk InAs and hence large spin splitting of electron-like Landau levels in a quantizing magnetic field. The two lowest electron-like spin levesl can be used as a qubit of a quantum computer. Then the one-qubit operations can be performed by the circulary polarized light of photon energy approximately equal to the spin splitting of levels. These transitions rae possible because of the mixing of the states of different spin orientations caused by the spin-orbit interaction. Previously it has been found that the additional AlGaSb layer can essentially enhance the spin splitting of electron-like levels when the magnetic field is normal to the InAs/AlGaSb interface due to the hybridization of electron and hole levels. Here we investigate the Landau-level structures in strained InAs/GaSb heterostructures using the scattering matrix method and Burt's envelope function theory. We obtain somewhat different results. The spin splitting of electron-like Landau levels considerably enlarges when the hybridization of electron and hole levels becomes negligibly small with the magnetic field increasing. We find that this splitting depends essentially on the lattice-mismatched strain and can be as large as 15 meV at magnetic field B ≥ 15 T for the structure grown on InAs.","PeriodicalId":90714,"journal":{"name":"Quantum bio-informatics V : proceedings of the quantum bio-informatics 2011, Tokyo University of Science, Japan, 7-12 March 2011. Quantum Bio-Informatics (Conference) (5th : 2011 : Tokyo, Japan)","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2003-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74577589","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

Perspectives of particle-optical systems in quantum computing 量子计算中粒子光学系统的展望

Quantum bio-informatics V : proceedings of the quantum bio-informatics 2011, Tokyo University of Science, Japan, 7-12 March 2011. Quantum Bio-Informatics (Conference) (5th : 2011 : Tokyo, Japan) Pub Date : 2003-07-23 DOI: 10.1117/12.517867

V. A. Zhukov, M. M. Nesterov

{"title":"Perspectives of particle-optical systems in quantum computing","authors":"V. A. Zhukov, M. M. Nesterov","doi":"10.1117/12.517867","DOIUrl":"https://doi.org/10.1117/12.517867","url":null,"abstract":"There is investigated theoretical possibility to make quantum computer elements by means of Ion Lithography with resolution of details about 2 nm. The axisymmetrical combined immersion lenses of three types are investigated for this aim in a whole range of working regimes from the edge of pure electrostatic regime to the edge of combined mirror regime. Simple analytical approximations are derived for four main ion-optical parameters of combined lenses: focal length f, coefficient of chromatic aberration Cd, coefficient of spherical aberration of the third order Cs, and Amper-turns in the magnetic coil of combined lens NI. These parameters are expressed in form of functions of dimensionless quantity (formula available in paper) is the energy of ions at the lithographic target and W0 is the initial energy of ions. It is shown that axial aberrations of combined lenses (Cc and Cs) and focal length f have a maximum under absence of magnetic field (when lenses are pure electrostatic). It is shown that under ττ yeilds 0 parameters Cc, Cs, f and NI, as functions of quantity τ, take forms: Cc~τ1/6, Cs~τ1/4, f~τ1/3, NI~τ(-1/2). It is shown also that the Ion Lithographic image (by using heavy ions in non-resist regime) could have 2*1012 pixels under resoltuion 2nm in the frame 3×3mm2.","PeriodicalId":90714,"journal":{"name":"Quantum bio-informatics V : proceedings of the quantum bio-informatics 2011, Tokyo University of Science, Japan, 7-12 March 2011. Quantum Bio-Informatics (Conference) (5th : 2011 : Tokyo, Japan)","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2003-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84321966","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