期刊文献+
共找到7篇文章
< 1 >
每页显示 20 50 100
Bose-Einstein Condensation Yb2Si2O7 Retaining Si Applied in UV-Etching 1 nm Quantum Wires
1
作者 Hung Te Henry Su Po-Han Lee 《Open Journal of Physical Chemistry》 2025年第1期1-19,共19页
A Bose-Einstein condensate (BEC) is a topic of significant interest within the scientific community. It is well understood that Rb-87 and Yb2Si2O7 have been utilized in experiments to explore this phenomenon. These st... A Bose-Einstein condensate (BEC) is a topic of significant interest within the scientific community. It is well understood that Rb-87 and Yb2Si2O7 have been utilized in experiments to explore this phenomenon. These studies have demonstrated that these materials can achieve the BEC phase, a state that has been experimentally validated. In this paper, we further establish, from the perspective of theoretical physics, that silicon is also capable of exhibiting BEC properties. Our approach differs from prior studies in that it uses innovatively certain boundary conditions. Specifically, we employed Yb-70 as a gamma-ray radiation source and a 1 nm linewidth (as the half-width of a 2 nm line). Additionally, we utilized the concept of half-value thickness from nuclear physics absorption models to optimize the semiconductor process. This method effectively removes ytterbium (Yb) during the process, leaving only silicon, silicon-based materials, or silicon topological superconductors on the wafer. This technical procedure results in the creation of “BEC silicon” at absolute zero temperature (0 K), introducing a novel material for BEC realization. 展开更多
关键词 Rb-87 bec phase Yb-70 bec Silicon Absolute Zero Temperature
在线阅读 下载PDF
Time Phase Transition and Higgs Formation
2
作者 Yougang Feng 《Journal of Modern Physics》 2016年第6期536-542,共7页
Time-lattice model is proposed. Using the correspondence of the model and the Ising model for simple cubic lattice system, we study the time phase transition, the electroweak phase transition, and the BEC transition f... Time-lattice model is proposed. Using the correspondence of the model and the Ising model for simple cubic lattice system, we study the time phase transition, the electroweak phase transition, and the BEC transition for time. The time field is the Higgs field. Four types of the fields are found before the electroweak phase transition, after which there is only one type of Higgs field coming from the infinite correlation of the lattice time states, going with electromagnetic field and gravitowagnetic field. The symmetry breaking and the hierarchical structures, the relation between the change in energy and the Higgs formation, the reason why there are a few antiparticles and no negative mass are explored. For the Higgs field, its energy density and time condensation are discussed. A possible mechanism of the formation of black hole is assumed. 展开更多
关键词 TIME HIGGS ISING phase Transition ELECTROWEAK bec
在线阅读 下载PDF
Definite Answer for Riemann Hypothesis Zeta 3/2 Function Provided by New Material Yb2Si2O7 in Quantum Mechanics
3
作者 Hung-Te Henry Su Po-Han Lee 《Journal of Modern Physics》 2024年第9期1409-1429,共21页
This paper indicates the problem of the famous Riemann hypothesis (RH), which has been well-verified by a definite answering method using a Bose-Einstein Condensate (BEC) phase. We adopt mathematical induction, mappin... This paper indicates the problem of the famous Riemann hypothesis (RH), which has been well-verified by a definite answering method using a Bose-Einstein Condensate (BEC) phase. We adopt mathematical induction, mappings, and laser photons governed by electromagnetically induced transparency (EIT) to examine the existence of the RH. In considering the well-developed as Riemann zeta function, we find that the existence of RH has a corrected and self-consistent solution. Specifically, there is the only one pole at s = 1 on the complex plane for Riemann’s functions, which generalizes to all non-trivial zeros while s > 1. The essential solution is based on the BEC phases and on the nature of the laser photon(s). This work also incorporates Heisenberg commutators [ x^,p^]=1/2in the field of quantum mechanics. We found that a satisfactory solution for the RH would be incomplete without the formalism of Heisenberg commutators, BEC phases, and EIT effects. Ultimately, we propose the application of qubits in connection with the RH. 展开更多
关键词 bec phases EIT Heisenberg Commutators Laser Photons QUBITS Riemann Hypothesis
在线阅读 下载PDF
交叉线性极化光学腔中超冷玻色气体的量子相变
4
作者 吴兆迪 覃威 +1 位作者 郑东琛 廖任远 《福建师范大学学报(自然科学版)》 CAS 北大核心 2024年第6期55-62,共8页
构造两个高品质线性极化光学腔同自旋玻色-爱因斯坦凝聚体(Bose-Einstein condensate,BEC)耦合的理论模型,原子通过原子极化率的矢量部分和标量部分分别同两腔进行耦合。在低能极限下,基于朗道相变理论,对该模型潜在的量子相变进行了预... 构造两个高品质线性极化光学腔同自旋玻色-爱因斯坦凝聚体(Bose-Einstein condensate,BEC)耦合的理论模型,原子通过原子极化率的矢量部分和标量部分分别同两腔进行耦合。在低能极限下,基于朗道相变理论,对该模型潜在的量子相变进行了预测。随着泵浦光场强度以及单原子自旋同腔1电场夹角的改变,系统将在正常相、单腔超辐射相和双腔混合超辐射相之间转变。 展开更多
关键词 bec 光学腔 平均场理论 超辐射 量子相变
在线阅读 下载PDF
纳米结构中激子研究进展 被引量:1
5
作者 闫占彪 郭震宁 《半导体技术》 CAS CSCD 北大核心 2005年第12期44-48,共5页
回顾了近年来耦合量子阱中激子玻色-爱因斯坦凝聚的研究进展和主要实验成果,提供了耦合量子阱中间接激子凝聚的实验证据和高度简并冷激子系统形成的实验条件以及形成机理。介绍了量子点中激子在量子信息中的最新发展,在纳米结构中的准... 回顾了近年来耦合量子阱中激子玻色-爱因斯坦凝聚的研究进展和主要实验成果,提供了耦合量子阱中间接激子凝聚的实验证据和高度简并冷激子系统形成的实验条件以及形成机理。介绍了量子点中激子在量子信息中的最新发展,在纳米结构中的准粒子激子已经成为极有应用前景的发展目标。 展开更多
关键词 激子 耦合量子阱 相图 玻色-爱因斯坦凝聚 自组织量子点
在线阅读 下载PDF
Condensate fraction of asymmetric three-component Fermi gas
6
作者 杜佳佳 梁军军 梁九卿 《Chinese Physics B》 SCIE EI CAS CSCD 2014年第2期106-111,共6页
In this paper, we investigate the condensate fraction (CF) of fermionic pairs in the BCS-BEC crossover for three- component Fermi gas with both asymmetric interactions and unequal chemical potentials in two-dimensio... In this paper, we investigate the condensate fraction (CF) of fermionic pairs in the BCS-BEC crossover for three- component Fermi gas with both asymmetric interactions and unequal chemical potentials in two-dimensional free space. By using the functional-path-integral method, we have analytically derived the number densities and bound-state energy, from which the off-diagonal long-range order is analyzed in terms of the asymptotic behavior of the two-body density matrix. The explicit formula of CF is obtained as a function of the bound-state energy and population imbalance. It is demonstrated that the CF spectrum with respect to the bound-state energy can be used to characterize the quantum phase transition between the two kinds of Sarma phases as well as the transition from three-component to two-component superfluid. Moreover we obtain the same analytic formula of CF in the BCS superfluid phase as that of homogeneous Fermi gas with equal chemical potentials. 展开更多
关键词 condensate fraction BCS-bec crossover Sarma phases
原文传递
上一页 1 下一页 到第
使用帮助 返回顶部