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

IMPORTANCE OF EXCLUDED VOLUME AND HYDRODYNAMIC INTERACTIONS ON MACROMOLECULAR DIFFUSION IN VIVO. 排除体积和水动力相互作用对体内大分子扩散的重要性。

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 : 2013-03-01 DOI: 10.1142/9789814460026_0032

Tadashi Ando, Jeffrey Skolnick

{"title":"IMPORTANCE OF EXCLUDED VOLUME AND HYDRODYNAMIC INTERACTIONS ON MACROMOLECULAR DIFFUSION IN VIVO.","authors":"Tadashi Ando, Jeffrey Skolnick","doi":"10.1142/9789814460026_0032","DOIUrl":"https://doi.org/10.1142/9789814460026_0032","url":null,"abstract":"The interiors of all living cells are highly crowded with macromolecules, which results in a considerable difference between the thermodynamics and kinetics of biological reactions in vivo from that in vitro. To begin to elucidate the principles of intermolecular dynamics in the crowded environment of cells, employing Brownian dynamics (BD) simulations, we examined possible mechanism(s) responsible for the great reduction in diffusion constants of macromolecules in vivo from that at infinite dilution. In an E. coli cytoplasm modelcomprised of 15 different macromolecule types at physiological concentrations, where macromolecules were represented by spheres with their Stokes radii, BD simulations were performed with and without hydrodynamic interactions (HI). Without HI, the calculated diffusion constant of green fluorescent protein (GFP) is much larger than experiment. On the other hand, when HI were considered, the in vivo experimental GFP diffusion constant is almost reproduced without adjustable parameters. In addition, HI give rise to significant, size independent intermolecular dynamic correlations. These results suggest that HI play an important role on macromolecular dynamics in vivo.","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":"30 ","pages":"375-387"},"PeriodicalIF":0.0,"publicationDate":"2013-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1142/9789814460026_0032","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"32984671","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: 4

Influence of surrounding spin environment on two-spin system ESR spectra 周围自旋环境对双自旋体系ESR谱的影响

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 : 2008-03-03 DOI: 10.1117/12.801912

S. Dobryakov, V. Privezentsev

引用次数: 0

Quantum computation and hidden variables 量子计算和隐变量

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 : 2008-03-03 DOI: 10.1117/12.801893

V. Aristov, A. Nikulov

{"title":"Quantum computation and hidden variables","authors":"V. Aristov, A. Nikulov","doi":"10.1117/12.801893","DOIUrl":"https://doi.org/10.1117/12.801893","url":null,"abstract":"Many physicists limit oneself to an instrumentalist description of quantum phenomena and ignore the problems of foundation and interpretation of quantum mechanics. This instrumentalist approach results to \"specialization barbarism\" and mass delusion concerning the problem, how a quantum computer can be made. The idea of quantum computation can be described within the limits of quantum formalism. But in order to understand how this idea can be put into practice one should realize the question: \"What could the quantum formalism describe?\", in spite of the absence of an universally recognized answer. Only a realization of this question and the undecided problem of quantum foundations allows to see in which quantum systems the superposition and EPR correlation could be expected. Because of the \"specialization barbarism\" many authors are sure that Bell proved full impossibility of any hidden-variables interpretation. Therefore it is important to emphasize that in reality Bell has restricted to validity limits of the no-hidden-variables proof and has shown that two-state quantum system can be described by hidden variables. The later means that no experimental result obtained on two-state quantum system can prove the existence of superposition and violation of the realism. One should not assume before unambiguous experimental evidence that any two-state quantum system is quantum bit. No experimental evidence of superposition of macroscopically distinct quantum states and of a quantum bit on base of superconductor structure was obtained for the present. Moreover same experimental results can not be described in the limits of the quantum formalism.","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":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2008-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75938529","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: 9

Problem of detection of Rydberg atoms and quantum information processing 里德伯原子探测问题与量子信息处理

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 : 2008-03-03 DOI: 10.1117/12.801914

D. Tretyakov, I. Ryabtsev, I. Beterov, V. Entin

{"title":"Problem of detection of Rydberg atoms and quantum information processing","authors":"D. Tretyakov, I. Ryabtsev, I. Beterov, V. Entin","doi":"10.1117/12.801914","DOIUrl":"https://doi.org/10.1117/12.801914","url":null,"abstract":"We have developed a simple theoretical model describing multi-atom signals that could be measured in experiments on resonant energy transfers in an ensemble of a few Rydberg atoms. We have shown that an efficiency of the selective field-ionization detector, which is less than 1, leads to the mixing up of the spectra of the resonant energy transfer registered for various numbers of detected Rydberg atoms. This may impede the possible observations of dipole blockade or coherent two-atom interaction required to perform basic quantum gates. The formulae are presented, which help to estimate an actual mean Rydberg atom number in an excitation volume per one exciting laser pulse at a given detection efficiency. We have also found that a measurement of relationship of the amplitudes of resonances observed in the one- and two-atom signals provides a straightforward determination of the absolute detection efficiency and actual mean Rydberg atom number. This novel method is advantageous as it is independent of the specific experimental conditions. We also performed a testing experiment on the resonant energy transfers in a small excitation volume of the velocity selected Na atomic beam. The observed one- and two-atom resonances were analyzed and compared with the theoretical predictions. A good agreement between experiment and theory in the width and amplitudes of the resonances has confirmed the validity of simple approximations used in the developed theoretical model.","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":"24 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2008-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76075347","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

Non-multiple non-equidimensional bases and unsharp measurements 非多重非等维基底和不锋利的测量

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 : 2008-03-03 DOI: 10.1117/12.801897

Dmitry V. Dodin, I. Kovalenko

引用次数: 0

Macroscopic wavefunction for ensemble of ultracold atoms trapped in optical labyrinth 光学迷宫中超冷原子系综的宏观波函数

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 : 2008-03-03 DOI: 10.1117/12.801910

A. Okulov

引用次数: 0

Selective control of states of a three-level quadrupolar nucleus using non-selective radio-frequency pulses 用非选择性射频脉冲对三能级四极核状态的选择性控制

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 : 2008-03-03 DOI: 10.1117/12.801921

V. Zobov, V. Shauro

引用次数: 0

Application of superconducting quantum interferometer in quantum computer development 超导量子干涉仪在量子计算机开发中的应用

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 : 2008-03-03 DOI: 10.1117/12.801918

A. I. Golovashkin, A. L. Karuzskiy, A. A. Orlikovskiy, V. Privezentsev, A. M. Tshovrebov

{"title":"Application of superconducting quantum interferometer in quantum computer development","authors":"A. I. Golovashkin, A. L. Karuzskiy, A. A. Orlikovskiy, V. Privezentsev, A. M. Tshovrebov","doi":"10.1117/12.801918","DOIUrl":"https://doi.org/10.1117/12.801918","url":null,"abstract":"Various variants of use high-sensitivity superconducting quantum interferometers (SQUID) in problems closely connected with development of a quantum computer are considered. 1.Hardware realization of a method of definition of midget concentration of the paramagnetic centers, based on measurement of their magnetization SQUID in a mode of modulation microwave saturation of magnetic sublevels is offered. The method will allow make testing of semi-conductor materials necessary for creation of a spin solid-state quantum computer. 2.The opportunity of application SQUID for reading a condition of the quantum register, based on the quantum-statistical mechanism, allowing registered a state of single spin, is considered. 3.The circuit super low noise the quantum electrometer, based on use SQUID is offered as a measuring instrument of magnetization of spin system in which exchange interaction is adjusted by potential on in parallel connected managing electrodes (on type a spin ensemble computer).","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":"89 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2008-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79934890","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

Relative coordinates of coherent electron pair 相干电子对的相对坐标

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 : 2008-03-03 DOI: 10.1117/12.801896

C. V. Usenko, N. Cherkashyna

引用次数: 1

Optically driven nanostructures as the basis for large-scale quantum computing 光学驱动纳米结构作为大规模量子计算的基础

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 : 2008-03-03 DOI: 10.1117/12.801920

A. V. Tsukanov

引用次数: 0