- Trang chủ >
- Khoa Học Tự Nhiên >
- Vật lý >
the quantum physics of black holes and string theory
the quantum physics of black holes and string theory
... understanding of the physics of black holes. In particular, we discuss the ideas from string theory that explain the entropy of black holes froma counting of microstates of the hole, and the related ... FUN-DAMENTAL STRING String theory is a quantum theory of gravity. Thus, black holes should appearin this theory as excited quantum states. An idea of Susskind [24] has provedvery useful in the study of ... that relate Type IIA theory to heterotic string theory, and those that relate these theories to the theory of unorientedstrings. In this article, we do not use the idea of dualities directly,...
- 49
- 523
- 0
physics - black holes in supergravity and string theory
... Solutions of the exercis es 551 Introduction String theory has been the leading candidate for a unified quantum theory of allinteractions during the last 15 years. The develope ments of the last ... introduction to black holes in supergravity and string the- ory.2 The fo c us is on the role of BPS solutions in four- and higher-dimensionalsupe rgravity and in string theory. Basic ideas and techniques ... the string theories with the high-est possible amount of supersymmetry, ca lled type IIA and IIB. We start byreviewing the relevant elements of string theo ry.4.1 Some elements of string theory The...
- 65
- 403
- 0
Physics of particles matter and the universe blin stoyle
... force and the specification of the nature of the force of gravity between two massive bodies, in this case the sun and the planet. Such a ‘basic idea’ is called a theory and, in physics, a theory ... ‘orbit’. The heavier the weight, the faster it moves or the further it is away from the centre of rotation the greater the force needed and the greater the angular momentum of the weight. In the ... Physics of Particles, Matter and the Universe There is another type of momentum which is extremely important in many aspects of physics, not least the quantum understanding of atoms and...
- 234
- 336
- 0
scientific american - 1993 03 - black holes and the centrifugal force paradox
... the axis of the tube and the path of the ray coincide. The astronauts know that the axis of the tube is circular becauseBob has measured the curvature of the walls along the length of the tube usingstraight ... block of problem states is not in the Òrust beltÓ of the North, nor in the high-traÛc re-gions of the Northeast and Southwest,but rather in the southeastern U.S. [seeillustrations above and ... on the sense of inward and out-ward are also reversed. This realizationis important for understanding someaspects of the physics of black holes, which are believed to be a crucial part of the...
- 87
- 544
- 0
Infelicities of the Intended Meaning of Canonical Texts and Norms Constraining Interpretation
... form reflect the rule -of- lawvalue of the accessibility of law. The norms that handle cases of failed lawreflect both the rule -of- law value of accessibility and the more substantivevalue of consistent ... infelicities. And it is always possible that24 Of course, if there were no fact of the matter regarding the level of generality of the authorities’intentions, there might well not be a fact of the matter ... supermajor-ity)–willallintendthesamemeaningfortheruletheyenact.Inotherwords, over the range of real or hypothetical applications of the rule,felicitous and infelicitous, if asked how the rule was intended to apply,each member of the...
- 24
- 441
- 0
Between fathers and fetuses - the social construction of male reproduction and the politics of fetal harm
... nullius – as if they had no biological fathers. With no linkbetween fathers and fetuses, no inheritance of harm could be attributed to the father’s use of drugs. The absence of fathers in debates ... the symbols of the ‘crackbaby’, ‘pregnant addict’ and ‘absent father’ emerged at the center of debateover fetal hazards. (A more detailed analysis of the social and politicalconstruction of ... asmorphine and methadone) administered to fathers, but not to mothers, haveproduced birth defects and behavioural abnormalities in the Wrst and secondgenerations of the father’s oVspring (Friedler and...
- 18
- 862
- 0
Tài liệu The Investing Secrets of Warren Buffett—and how to profit from them pptx
... features of the growth in sales and earnings: the rate of growth and the stability of the growth. Conscious Investor provides proprietary tools to measure both of these for thousands of companies. ... of let’s sit back and hope for the best. F Then there are others who deliberately do not want to know anything about the activities of the company. They want to study the “pure” movement of ... is to hold shares for the rest of his life, when the profit is there, and the share price has outpaced the value of the underlying business, then he sometimes takes it. The exciting thing about...
- 27
- 618
- 1
Tài liệu SWIMMING IN SEWAGE: The Growing Problem of Sewage Pollution and How the Bush Administration Is Putting Our Health and Environment at Risk ppt
... be increasing, and there is evidence that the rate of infection is proportional to both the amount of time swimmers are exposed and the levels of pollution in the waters where they swim.60 ... percent over land areas of the Northern Hemisphere during the 20th century,155 and global warming is predicted to further increase the intensity of rainfall events for parts of the United States.156 ... plenty of dissolved oxygen to meet the demand of these living, breathing battalions so that the final effluent is largely free of its “food” content and, therefore, its “oxygen demand.” When...
- 83
- 543
- 0
Tài liệu Báo cáo khoa học: Ionic strength and magnesium affect the specificity of Escherichia coli and human 8-oxoguanine-DNA glycosylases pdf
... determination The reaction mixtures were as in the standard assay, exceptthat the components specified in the Results were added, and the concentrations of the substrate and enzyme varied asrequired for the ... independently evaluate the effects of ionicstrength and Mg2+on the activity and specificity of OGG1, we measured the apparent values of k2 and k3under conditions of low salt (KPionly) and no Mg2+,low ... [19,20]. The results of the fluorescence titration experiments aresummarized in Fig. 2. In the absence of MgCl2, the affinity of Fpg for the THF:C ligand was 1.6-fold higherthan for the THF:A ligand....
- 14
- 567
- 0
Từ khóa: Nghiên cứu sự hình thành lớp bảo vệ và khả năng chống ăn mòn của thép bền thời tiết trong điều kiện khí hậu nhiệt đới việt namđề thi thử THPTQG 2019 toán THPT chuyên thái bình lần 2 có lời giảiBiện pháp quản lý hoạt động dạy hát xoan trong trường trung học cơ sở huyện lâm thao, phú thọGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitGiáo án Sinh học 11 bài 13: Thực hành phát hiện diệp lục và carôtenôitPhối hợp giữa phòng văn hóa và thông tin với phòng giáo dục và đào tạo trong việc tuyên truyền, giáo dục, vận động xây dựng nông thôn mới huyện thanh thủy, tỉnh phú thọPhát hiện xâm nhập dựa trên thuật toán k meansNghiên cứu về mô hình thống kê học sâu và ứng dụng trong nhận dạng chữ viết tay hạn chếĐịnh tội danh từ thực tiễn huyện Cần Giuộc, tỉnh Long An (Luận văn thạc sĩ)Thiết kế và chế tạo mô hình biến tần (inverter) cho máy điều hòa không khíTăng trưởng tín dụng hộ sản xuất nông nghiệp tại Ngân hàng Nông nghiệp và Phát triển nông thôn Việt Nam chi nhánh tỉnh Bắc Giang (Luận văn thạc sĩ)Giáo án Sinh học 11 bài 15: Tiêu hóa ở động vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtGiáo án Sinh học 11 bài 14: Thực hành phát hiện hô hấp ở thực vậtChiến lược marketing tại ngân hàng Agribank chi nhánh Sài Gòn từ 2013-2015HIỆU QUẢ CỦA MÔ HÌNH XỬ LÝ BÙN HOẠT TÍNH BẰNG KIỀMMÔN TRUYỀN THÔNG MARKETING TÍCH HỢPQUẢN LÝ VÀ TÁI CHẾ NHỰA Ở HOA KỲ