大脑中的量子信息过程(英文)
作者:
高峰;张登玉;唐世清
期刊:
衡阳师范学院学报 ,2012年33(03):36-39 ISSN:1673-0313
作者机构:
衡阳师范学院物理与电子信息科学系,湖南衡阳,421008;[高峰; 唐世清; 张登玉] 衡阳师范学院
关键词:
量子信息;大脑;微管;哈密顿量
摘要:
A In this paper, according to the a-monomer and β-monorner in the cytoskeletal microtubules and Lloyd's schemes for loading and processing of information in the wall of microtubules, quantum information process in the cerebral nervous system is discussed. We conclude that there is a quantum information process in the tubulin. Fur- ther, the quantum information process in cytoskeletal mierotuboles is described based on the pseudo-spin atoms model, and system's Hamiltonian is discussed.
语种:
英文
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γ射线损伤脑神经系统的物理机理(英文)
作者:
高峰;肖德涛;张登玉
期刊:
衡阳师范学院学报 ,2012年(06):14-19+1 ISSN:1673-0313
作者机构:
[高峰] 衡阳师范学院物理与电子信息科学系,湖南衡阳 421008;[高峰] 南华大学科学技术学院,湖南衡阳 421001;[肖德涛] 南华大学科学技术学院,湖南衡阳,421001;衡阳师范学院物理与电子信息科学系,湖南衡阳,421008;[张登玉] 衡阳师范学院
关键词:
γ射线;脑信息位;损伤;物理机理
摘要:
研究了γ射线与脑神经系统相互作用的特点和机理.对脑细胞微管骨架(MT)中的两点物理系统进行了量子化,利用密度矩阵描写神经系统信息位的状态,并建立和求解了系统的动力学方程.结果表明:无论是高剂量还是低剂量γ射线,都将损伤脑的功能和精神.
语种:
英文
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准确把握教育硕士专业学位类别的办学定位
作者:
张登玉;游开明;高峰;陈列尊
期刊:
教育教学论坛 ,2012年(19):50-51 ISSN:1674-9324
作者机构:
衡阳师范学院 物理与电子信息科学系,湖南 衡阳 421008
关键词:
学术硕士;专业硕士;教育硕士;办学定位
摘要:
学术型硕士和专业硕士是两种不同培养方向的研究生,一种强调学术研究,另一种强调实践技能。本文针对教育硕士,从招生办法、培养方式、课程设置、导师遴选和论文要求等方面提出一些建设性意见。
语种:
中文
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Feasible schemes for quantum swap gates of optical qubits via cavity QED
作者:
Tang Shi-Qing;Zhang Deng-Yu* ;Wang Xin-Wen;Xie Li-Jun;Gao Feng
期刊:
中国物理B ,2011年20(4): 040308-1-040308-6 ISSN:1674-1056
通讯作者:
Zhang Deng-Yu
作者机构:
[Zhang Deng-Yu] Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.;Hengyang Normal Univ, Res Inst Photoelect, Hengyang 421008, Peoples R China.
通讯机构:
[Zhang Deng-Yu] H;Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.
关键词:
swap gate;coherent-state qubits;photonic qubits;fidelity
摘要:
Feasible schemes for implementing quantum swap gates of both coherent-state qubits and photonic qubits are proposed using a Λ-type atomic ensemble trapped in a bimodal optical cavity. In both protocols, the decoherence from atomic spontaneous emission is negligible due to the fact that the excited states of the atoms are adiabatically eliminated under large detuning condition and the swap gates can be created in a single step. In our schemes, the required atoms - cavity interaction time decreases with the increase of the number of atoms, which is very important in view of decoherence. The experimental feasibilities of the schemes are also discussed. © 2011 Chinese Physical Society and IOP Publishing Ltd.
语种:
英文
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Tripartite states Bell-nonlocality sudden death in a spin environment with multisite interaction
作者:
Xie Li-Jun* ;Zhang Deng-Yu;Wang Xin-Wen;Zhan Xiao-Gui;Tang Shi-Qing;...
期刊:
中国物理B ,2011年20(8): 080301-1-080301-7 ISSN:1674-1056
通讯作者:
Xie Li-Jun
作者机构:
[Tang Shi-Qing; Xie Li-Jun; Zhang Deng-Yu; Wang Xin-Wen; Gao Feng; Zhan Xiao-Gui] Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.
通讯机构:
[Xie Li-Jun] H;Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.
关键词:
Bell-type inequality;Bell-nonlocality sudden death;three-site interaction
摘要:
This paper demonstrates that multipartite Bell-inequality violations can be fully destroyed in a finite time in three-qubit states coupled to a general XY spin-chain with a three-site interaction environment. The Mermin - Ardehali - Belinksii - Klyshko inequality is used to detect the degree of nonlocality, as measured by the extent of their violations. The effects of system-environment couplings, the size of degrees of freedom of the environment and the strength of the three-site interaction on the Bell-inequality violations are given. The results indicate that the Bell-inequality violations of the tripartite states will be completely destroyed by decoherence under certain conditions for the GHZ state. The decoherence-free subspaces of our model are identified and the entanglement of quantum states is also discussed. © 2011 Chinese Physical Society and IOP Publishing Ltd.
语种:
英文
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Disentanglement of Three-qubit States Coupled to an XY Spin Chain with Multisite Interaction
作者:
Xie, Li-Jun;Zhang, Deng-Yu;Wang, Xin-Wen* ;Tang, Shi-Qing;Zhan, Xiao-Gui;...
期刊:
INTERNATIONAL JOURNAL OF THEORETICAL PHYSICS ,2011年50(10):3096-3104 ISSN:0020-7748
通讯作者:
Wang, Xin-Wen
作者机构:
[Zhang, Deng-Yu; Gao, Feng; Wang, Xin-Wen; Tang, Shi-Qing; Xie, Li-Jun; Zhan, Xiao-Gui] Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.;[Zhang, Deng-Yu; Gao, Feng; Wang, Xin-Wen; Tang, Shi-Qing; Xie, Li-Jun; Zhan, Xiao-Gui] Hengyang Normal Univ, Res Inst Photoelect, Hengyang 421008, Peoples R China.
通讯机构:
[Wang, Xin-Wen] H;Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.
关键词:
Disentanglement;Three-qubit states;Three-site interaction
摘要:
The entanglement dynamics of three-qubit states coupled to a general XY spin-chain with a three-site interaction environment is investigated. By using negativity as entanglement measure, we find that the entanglement evolution depends on not only the system-environment couplings but also the strength of three-site interaction. In the strong-coupling region, the three-site interaction can remarkably enhance the decay of the entanglement of three-qubit states. However, in the weak-coupling region, the process of disentanglement depends on the strength of the three-site interaction.
语种:
英文
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电子测量实验教学改革探索
作者:
谭延亮;游开明;高峰
期刊:
衡阳师范学院学报 ,2011年32(03):144-146 ISSN:1673-0313
作者机构:
衡阳师范学院物理与电子信息科学系,湖南衡阳,421008;[高峰; 游开明; 谭延亮] 衡阳师范学院
关键词:
电子测量;实验教学;探索
摘要:
从电子测量的发展趋势和衡阳师范学院电子测量实验教学的现状出发,针对原有实验教学存在的问题,提出了<电子测量>实验教学改革的具体思路:重应用-以实际应用为目的;强基础-牢固掌握仪器的原理;拓思路-灵活运用测量原理和方法;新内容-现代化内容贯穿全部实验内容;多手段-新的实验手段.
语种:
中文
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高师物理学专业量子物理综合课程研究
作者:
高峰;张登玉;游开明;唐世清
期刊:
衡阳师范学院学报 ,2011年32(03):133-136 ISSN:1673-0313
作者机构:
衡阳师范学院南岳学院,湖南衡阳421008;衡阳师范学院物理与电子信息科学系,湖南衡阳421008;衡阳师范学院南岳学院,湖南衡阳,421008;[高峰; 唐世清; 游开明; 张登玉] 衡阳师范学院南岳学院
关键词:
原子物理学;量子力学;体系结构;教学研究
摘要:
探讨高等师范院校物理学专业原子物理学与量子力学课程整合的必要性和可行性,提出改革现行课程教学体系和教学内容的一些具体设想,以便促进量子物理综合课程教学研究与改革.
语种:
中文
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土壤氡测量方法
作者:
申超;肖德涛;陈凌;高峰
期刊:
衡阳师范学院学报 ,2011年32(03):45-48 ISSN:1673-0313
作者机构:
南华大学核科学技术学院,湖南衡阳,421001;中国原子能科学研究院,北京,102413;衡阳师范学院物理与电子信息科学系,湖南衡阳,421008;[高峰] 衡阳师范学院;[肖德涛; 申超] 南华大学
关键词:
土壤氡;测量方法
摘要:
通过对土壤氡测量方法的研究,针对RAD7氡气检测仪在土壤氡测量中的应用,推荐:至少5 min的测量周期,采用grab(抓取)泵体运转模式,在充分保证仪器湿度下降到10%后,适时地插入土壤探杆,最后应结合相应泵体运转模式来解释数据。另外,在土壤氡测量过程中,应该明确目的,规范方法,保证质量。
语种:
中文
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SECURITY OF MULTIPARTY QUANTUM SECRET SHARING WITH MULTIQUBIT GHZ STATES
作者:
Wang, Xin-Wen* ;Zhang, Deng-Yu;Tang, Shi-Qing;Gao, Feng
期刊:
International Journal of Quantum Information ,2010年8(8):1301-1314 ISSN:0219-7499
通讯作者:
Wang, Xin-Wen
作者机构:
[Zhang, Deng-Yu; Gao, Feng; Wang, Xin-Wen; Tang, Shi-Qing] Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.;[Wang, Xin-Wen] Beijing Normal Univ, Dept Phys, Beijing 100875, Peoples R China.
通讯机构:
[Wang, Xin-Wen] H;Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.
关键词:
Quantum secret sharing;GHZ states;security
摘要:
We study the security of multiparty quantum secret sharing (QSS) with multiqubit Greenberger-Horne-Zeilinger states. We give a detailed proof that the original scheme of Xiao et al. [Phys. Rev. A 69 (2004) 052307] is insecure against the interior attack (i.e. the participants' attack) which is the most serious threat for QSS protocols. Thereafter, an improvement of this QSS protocol is proposed.
语种:
英文
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Simple schemes for generation of W-type multipartite entangled states and realization of quantuminformation concentration
作者:
Zhang Deng-Yu* ;Tang Shi-Qing;Xie Li-Jun;Zhan Xiao-Gui;Chen Yin-Hua;...
期刊:
中国物理B ,2010年19(10):100313-1-100313-6 ISSN:1674-1056
通讯作者:
Zhang Deng-Yu
作者机构:
[Zhang Deng-Yu] Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.;Hengyang Normal Univ, Res Inst Photoelect, Hengyang 421008, Peoples R China.
通讯机构:
[Zhang Deng-Yu] H;Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.
关键词:
Cavity quantum electrodynamics;Quantum-information concentration;W-state generation
摘要:
We propose simple schemes for generating W-type multipartite entangled states in cavity quantum electrodynamics (CQED). Our schemes involve a largely detuned interaction of λ-type three-level atoms with a single-mode cavity field and a classical laser, and both the symmetric and asymmetric W states can be created in a single step. Our schemes are insensitive to both the cavity decay and atomic spontaneous emission. With the above system, we also propose a scheme for realizing quantum-information concentration which is the reverse process of quantum cloning. In this scheme, quantum-information originally coming from a single qubit, but now distributed into many qubits, is concentrated back to a single qubit in only one step. © 2010 Chinese Physical Society and IOP Publishing Ltd.
语种:
英文
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项目教学法在电子技术实验课程中的应用
作者:
杨利容;高峰;周芸
期刊:
科技资讯 ,2010年(9):172 ISSN:1672-3791
作者机构:
衡阳师范学院物理与电子信息科学系,湖南衡阳,421008;辽宁师范大学物理与电子技术学院,辽宁大连,116029
关键词:
电子技术;项目教学法;实践;实验教学
摘要:
随着电子信息产业的飞速发展,对电子信息专业的人才提出了更高的要求。为了适应新形势下的需求,在电子技术实验课程的教学中采用了一种新的教学模式—项目教学法。并以"直流稳压电源的设计与制作"为例,通过确定项目任务、项目实施和项目评估三个过程,阐述了项目教学法在模拟电子技术课程中的具体应用。
语种:
中文
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利用超导量子干涉仪制备N比特团簇态(英文)
作者:
唐世清;张登玉;汪新文;刘韵丹;高峰
期刊:
衡阳师范学院学报 ,2010年31(06):40-45 ISSN:1673-0313
作者机构:
衡阳师范学院,物理与电子信息科学系,湖南,衡阳,421008;[高峰; 唐世清; 刘韵丹; 张登玉; 汪新文] 衡阳师范学院
关键词:
团簇态;标准量子相位门;超导量子干涉仪;腔QED
摘要:
利用两个超导量子干涉仪与腔场的相互作用,提出一种实现标准两比特量子相位门的方案.利用构造的两比特相位门,还提出了一种制备N比特团簇态的方案.在此方案中,量子信息被编码在两个超导量子干涉仪的相对稳定的基态上.在两个超导量子干涉仪与单模腔场的相互作用过程中,由于超导量子干涉比特的激发态被绝热地消去,激发态所引起的消相干得到了有效的抑制.此外,还讨论方案的实验可行性.
语种:
中文
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恒力作用下物体的运动
作者:
高峰;梁月娟
期刊:
衡阳师范学院学报 ,2010年31(03):33-35 ISSN:1673-0313
作者机构:
衡阳师范学院,物理与电子信息科学系,湖南,衡阳,421008;[高峰; 梁月娟] 衡阳师范学院
关键词:
经典力学;狭义相对论;恒力;运动
摘要:
研究分析了经典力学、相对论力学中物体在恒力作用下的运动特征。结果表明,在经典力学中,恒力作用下物体的运动速度将不断增大,而按照相对论力学,物体的运动速度则存在一个上限。
语种:
中文
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Tripartite states Bell-nonlocality sudden death in a quantum-critical environment
作者:
Zhang Deng-Yu* ;Xie Li-Jun;Tang Shi-Qing;Zhan Xiao-Gui;Chen Yin-Hua;...
期刊:
中国物理B ,2010年19(10):100305-1-100305-5 ISSN:1674-1056
通讯作者:
Zhang Deng-Yu
作者机构:
[Tang Shi-Qing; Xie Li-Jun; Zhang Deng-Yu; Chen Yin-Hua; Gao Feng; Zhan Xiao-Gui] Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.
通讯机构:
[Zhang Deng-Yu] H;Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.
关键词:
Bell-type inequality;Bell-nonlocality sudden death;quantum-critical environment
摘要:
We demonstrate that multipartite Bell-inequalities violations can be fully destroyed in finite time in three-qubit states under a quantum-critical environment, which is an Ising model in a transverse field. We use the Mermin-Ardehali-Belinksii-Klyshko (MABK) inequality to detect the degree of nonlocality as measured by the extent of their violations. The effects of system-environment couplings, the size of degrees of freedom of environment and the strength of transverse field on the Bell-inequality violations are given for two different initial states, namely, the W class and GHZ class states. The results indicate that the Bell-inequality violations of the tripartite states will be completely destroyed by the decoherence under certain conditions. © 2010 Chinese Physical Society and IOP Publishing Ltd.
语种:
英文
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光的干涉中光程差的教学
作者:
陈银花;张登玉;游开明;高峰;王友文
期刊:
衡阳师范学院学报 ,2010年31(03):162-164 ISSN:1673-0313
作者机构:
衡阳师范学院,物理与电子信息科学系,湖南,衡阳,421008;[高峰; 游开明; 张登玉; 王友文; 陈银花] 衡阳师范学院
关键词:
光程差;杨氏双缝干涉;劈尖等厚干涉
摘要:
分析杨氏双缝干涉实验和劈尖等厚干涉中光程差精确值的推导方法以及近似处理的结果,从而加深对光的干涉的理解。
语种:
中文
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高师物理专业电磁综合课程研究
作者:
张登玉;王友文;游开明;高峰
期刊:
衡阳师范学院学报 ,2010年31(06):127-131 ISSN:1673-0313
作者机构:
衡阳师范学院,物理与电子信息科学系,湖南,衡阳,421008;[高峰; 游开明; 张登玉; 王友文] 衡阳师范学院
关键词:
电磁学;电动力学;电磁综合课程;体系结构;教学研究
摘要:
探讨高师物理专业电磁学与电动力学课程整合的必要性和可行性,提出改革现行课程体系和教学内容的一些具体设想,以便促进电磁综合课程教学研究与改革。
语种:
中文
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A Simple Scheme for Realizing a Multiqubit Controlled-Phase Gate Through a Resonant Interaction of Three-Level Atoms with a Single-Mode Cavity
作者:
Zhang Deng-Yu* ;Tang Shi-Qing;Xie Li-Jun;Zhan Xiao-Gui;You Kai-Ming;...
期刊:
理论物理 ,2010年53(3):481-485 ISSN:0253-6102
通讯作者:
Zhang Deng-Yu
作者机构:
[Tang Shi-Qing; Xie Li-Jun; Zhang Deng-Yu; You Kai-Ming; Gao Feng; Zhan Xiao-Gui] Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.;[Tang Shi-Qing; Xie Li-Jun] Xiangtan Univ, Fac Mat & Photoelect Phys, Xiangtan 411005, Peoples R China.
通讯机构:
[Zhang Deng-Yu] H;Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.
关键词:
controlled-phase gate;three-level atom;QED;fidelity
摘要:
A very simple theoretical scheme is proposed to implement two- and three-qubit controlled-phase gates firstly only using a single resonant interaction between ladder-type three-level atoms and the single-mode cavity. In the presented protocol, the quantum information is encoded on the stable ground states of the atoms (as the controlling qubits) and the zero- and one-photon Fock states of cavity-field (as the target qubit). Under the influence of the atomic spontaneous emission, the decay of the cavity-mode, and deviation of the coupling strength, the three-qubit controlled-phase gate may have a comparatively high fidelity. The experimental feasibility of controlled-phase gate and the case that is extended to realize N-qubit controlled-phase gate are also discussed. © 2010 Chinese Physical Society and IOP Publishing Ltd.
语种:
英文
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A Simple Scheme for the Preparation of Four-Photon GHZ States Based on Cavity QED
作者:
Zhang Deng-Yu* ;Tang Shi-Qing;Wang Xin-Wen;Xie Li-Jun;Zhan Xiao-Gui;...
期刊:
中国物理快报:英文版 ,2010年27(7):070301-1-070301-3 ISSN:0256-307X
通讯作者:
Zhang Deng-Yu
作者机构:
[Zhang Deng-Yu] Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.;Hengyang Normal Univ, Res Inst Photoelect, Hengyang 421008, Peoples R China.
通讯机构:
[Zhang Deng-Yu] H;Hengyang Normal Univ, Dept Phys & Elect Informat Sci, Hengyang 421008, Peoples R China.
关键词:
Preparation;Four-Photon GHZ;Cavity QED
摘要:
A simple scheme is presented for generating four-photon Greenberger-Horne-Zeilinger states with a large detuned interaction between a three-level atom and two bimodal cavities. In the proposed protocol, the quantum information is encoded on Fock states of the cavity-fields, and the atomic spontaneous emission can be effectively suppressed due to the fact that the excited state of the atom is adiabatically eliminated under the large detuning condition. The detection of the atom can collapse the cavity to the desired state. The experimental feasibility of our proposal is also discussed. © 2010 Chinese Physical Society.
语种:
英文
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关于氢原子体系Schrodinger方程的讨论
作者:
高峰;周娟娟;张登玉;张军民
期刊:
衡阳师范学院学报 ,2010年31(06):27-30 ISSN:1673-0313
作者机构:
衡阳师范学院,物理与电子信息科学系,湖南,衡阳,421008;[高峰; 张登玉; 周娟娟; 张军民] 衡阳师范学院
关键词:
氢原子体系;定态Schrodinger方程;折合质量
摘要:
通过讨论氢原子体系的特点,将氢原子当作两体问题进行化简,推导出氢原子体系的定态Schrodinger方程。得到:方程中的质量不是电子的质量,也不是原子核的质量,而是系统的折合质量。
语种:
中文
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