... energy of electron- photon interaction T he averaging of operators in eqs (3) and (4) is implemented with non-interaction Hamiltonian H o of the electron-photon systems The structure of quantum ... role of the well-known mass operator of electron in Born approximation in the case of the absence of a magnetic field 2.2 In the case o f the presence o f a m a g n etic field We consider a quantum ... 55 Fig 4 I he dependence of and r+ _ (i7 ) on the rỉ-cyclotron frequency for the case of ỈICO O.OõOểV^ and thcr width of quantum well L=125 A Fig 5 The dependence of r _ + Q) and r+_(fì) on...
Ngày tải lên: 11/12/2017, 22:40
... Trang 1QUANTUM THEORY OF ABSORPTION QUANTUM THEORY OF ABSORPTION OF ELECTROMAGNETIC WAVE OF ELECTROMAGNETIC WAVE IN TWO IN TWO DIMENSIONAL ... University of Science Abstract: Quantum theory of absorption of electromagnetic wave (EMW) by confined electrons in two - dimensional (2D) graphene has been studied by using the quantum kinetic ... the problem of absorption of the electromagnetic wave in the case of the presence of an external magnetic field in 2D Graphene has not been studied, so, in this work, we used the quantum kinetic...
Ngày tải lên: 13/01/2020, 09:12
(Springer tracts in modern physics 222) michael i eides, howard grotch, valery a shelyuto (auth ) theory of light hydrogenic bound states springer verlag berlin heidelberg (2007)
... extraction of higher order corrections increasingly challenging.Nonrelativistic quantum electrodynamics (NRQED) aims to merge the straightforwardness of quantum mechanics with the rigor of field theory ... the Effective Dirac Equation Quantum field theory offers a clear method for determining the energy levels of composite systems, which are identified by the positions of the poles in the corresponding ... solutions of the Schrödinger equation, which describes the behavior of an electron in the electric field of an infinitely heavy Coulomb center with a charge of Z, equivalent to the proton charge.In quantum...
Ngày tải lên: 01/06/2022, 08:28
Lecture physics a2 quantum nature of light (quantum optics) phd pham tan thi
... 1Quantum Nature of Light (Quantum Optics) Ho Chi Minh University of Technology Courtesy of N Brunner and J Simmonds Trang 2Light behave like a wave or a particle(This is called the duality of ... fundamental sources of all electromagnetic radiation (EMR) are electric charges in accelerated motion • All bodies emit electromagnetic radiation as a result of thermal motion of their molecules ... position of a charged particle creates “waves” called electromagnetic waves • The electromagnetic waves travel through empty space eventually interacting with a distant charged • Visible light is...
Ngày tải lên: 27/02/2023, 08:12
out of my later years albert einstein
... travelswith the same velocity c independent of its color and the state of motion of the source of light(principle of the constancy of the velocity of light—in the following referred to as “L-principle”) ... (deflection of light by thegravitational field of a star, influence of the gravitational potential on the frequency of emitted light,slow rotation of the elliptic circuits of planets—perihelion motion of ... special theory of relativity removes this lack of precision by defining simultaneity physicallywith the use of light signals The time t of the event in P is the reading of the clock C at the time ofarrival...
Ngày tải lên: 22/07/2014, 21:16
Báo cáo toán học: "Combinatorial Identities from the Spectral Theory of Quantum Graph" potx
... of this paper is to present a newly discovered link between three seemingly unrelated subjects—quantum graphs, the theory of random matrix en-sembles and combinatorics We discuss the nature of ... coefficients of the oscillatory part s n = trS n will play an important rˆole in the following s n = trS n is a sum over products of n matrix elements of S, and because of (12) the bond indices of each ... operator as sums of periodic orbits of the graph The two-point correlations in the spectrum of S (16) can be expressed in terms of the average excess probability density R2(r; β) of finding two...
Ngày tải lên: 07/08/2014, 06:23
Theory of Brain Function quantum mechanics and superstrings - part 3 ppt
... anymore a possible artifact of our treatment of quantum gravity, this is the effective quantum mechanics [51, 5, 6] that emerges from a consistent quantum theory of gravity An intuitive way to ... be expected from a respectable quantum theory of gravity, BH dynamics is not in conflict with quantum mechanics There are several intuitive arguments that shed light on the above, rather drastic ... elaborate program of BH studies, and eventually, we succeeded in developing a new dynamical theory of string black holes [45] One first observes that in ST there is an infinity of particles of different...
Ngày tải lên: 10/08/2014, 00:21
Theory of Brain Function quantum mechanics and superstrings - part 4 ppt
... The characteristics of such “closed” systems include, of course, conservation of energy and no definite arrow of time or no flow of time, which is reflected in the forms of (9), (18), which are ... basically of two cylinders of nine triplets of MTs each, forming a kind of separated T At some point, each of the two cylinders in the centriole grows another, each apparently dragging a bundle of MTs ... for quantum decoherence, or equivalently the quantum coherence lifetime τc, as defined by the off-diagonal elements damping factor [43]: exp[−Nt(m6/M3)(∆X)2], for a system of N constituents of...
Ngày tải lên: 10/08/2014, 00:21
Theory of Brain Function quantum mechanics and superstrings - part 5 potx
... supportive of the onset of long-range quantum coherence, but they are also very protective of quantum coherence, shielding it from standard physical environmental effects, modulo, of course, ... that this quantum coherence is capable of superposition of states among MT spatially distributed over hundreds of microns! These in turn are in superposition with other MTs hundreds of microns ... physical picture of what is going on More specifically, in the case of the MT system the conformational, quantum transitions of the dimers (|αi ↔ |βi) create abrupt distortions of spacetime, thus...
Ngày tải lên: 10/08/2014, 00:21
Theory of Brain Function quantum mechanics and superstrings - part 6 pot
... actions of the brain. This kind of microphysical expla- nation is, o f course, supportive of an evolutionary natural selection, where in this case survival of the fittest reads survival of the ... probabilistic (∼ 0.3 −0.4) way. Thus, the probability of quantum (vesicular) emission is a holistic property of the presynaptic vesicular grid of the bouton! Actually, they further noticed [9, 97] ... points of MTs! There are about 10,000 vesicles per synaptic unit or bouton, of which only (30–80) belong to the “firing zone” of the paracrystalline presynaptic vesicular grid [98] and of which,...
Ngày tải lên: 10/08/2014, 00:21
Báo cáo y học: "Albert Einstein College of Medicine, Morris Park Avenue" pps
... population genetics Inference is often limited by the slow nature of the accumulation of genetic diversity, particularly in vertebrate populations, often resulting in a lack of statistical power [1] ... ancestral origin of the PV types of this genus is provided by the presence of an unusual second noncoding region (NCR2) A multiple nucleotide sequence alignment of the NCR2 of the feline PVs ... regions When we aligned the NCR2 regions of all λ-PVs using the T-coffee software [17], a moderate degree of similarity was still visible above the background of numerous insertions and deletions...
Ngày tải lên: 14/08/2014, 20:22
Quantum field theory of interacting plasmon–photon–phonon system
... construction of the quantumfield theory of the interacting system of plasmons, photons and phonons on the basis of general fundamental principles of electrodynamics and quantumfield theory of many-body ... of electrodynamics and quantum the-ory of many-body system For the application of mathematical tools of functional integral technique, the physical content of the theory of phonons in solids must ... Hermitian quantumx t field, whose quantum is plasmon: the quantum plasmonfield The expression of σ( , ) in terms of the destruction and creationx t operators of plasmon was known Thus the quantum...
Ngày tải lên: 16/12/2017, 01:04
DSpace at VNU: Basics of quantum field theory of electromagnetic interaction processes in single-layer graphene
... 2Basics of quantum field theory ofelectromagnetic interaction processes in single-layer graphene Van Hieu Nguyen Advanced Center of Physics and Institute of Materials Science, Vietnam Academy of Science ... first example of the application of perturbation theory, the second order terms in the perturbative expansions of boundary 2-point Green functions of electromagneticfield as well as of 2-point Green ... corners of the first Brillouin zone in the reciprocal lattice of the hexagonal crystalline structure of a graphene monolayer They are called Dirac points In the framework of the quantum field theory...
Ngày tải lên: 16/12/2017, 05:34
Basic concepts of the quantum theory
... is often referred to as lack of causality in quantum measurements squeezing The most profound and fundamental postulate of the quantum theory probably a com-mutation relation A certain pair of ... only the influence of the un-known force on the quantum system but also the influence of the coupling of the quantum probe and the measurement of the probe observable on the quantum system We ... property of a “measuring” quantum probe The goal of this section is to demon-strate that there are two types of uncertainty relations, one for the quantum system and the other for the quantum...
Ngày tải lên: 01/10/2018, 05:58
Basic concepts of the quantum theory
... is often referred to as lack of causality in quantum measurements squeezing The most profound and fundamental postulate of the quantum theory probably a com-mutation relation A certain pair of ... only the influence of the un-known force on the quantum system but also the influence of the coupling of the quantum probe and the measurement of the probe observable on the quantum system We ... property of a “measuring” quantum probe The goal of this section is to demon-strate that there are two types of uncertainty relations, one for the quantum system and the other for the quantum...
Ngày tải lên: 02/08/2019, 20:22
Research researchof quantum theory on the kinetic effects in quantum wires under the influence of an external field
... Trang 1RESEARCH OF QUANTUM THEORY ON OF QUANTUM THEORY ON OF QUANTUM THEORY ON THE KINETIC EFFECTS IN QUANTUM WIRES UNDER THE KINETIC EFFECTS IN QUANTUM WIRES UNDER THE INFLUENCE OF AN EXTERNAL ... basis of quantum kinetic equations in two main directions: The theory of nonlinear absorption of electromagnetic waves by confined electrons in quantum wires (first problem) and quantum theory ... recent years 2 CONTENTS 2.1 Theory of absorbing weak electromagnetic waves in quantum wires in the presence of strong electromagnetic waves The study of physical problems of the weak electromagnetic...
Ngày tải lên: 13/01/2020, 12:01
slide 1 famous scientists isaac newton louis pasteur albert einstein marie curie louis pasteur developed the vaccine for preventing rabies bệnh dại isaac newton is famous for his discovery of gravity
... discovery of gravity trọng lực Trang 6Albert Einstein is famous for his special and general theories of relativity.thuyết tương đối Trang 7Marie Curie determined the atomic weight of radium Nguyên ... married Pierre Curie in 5 She was the first woman professor at the Sorbonne. F T 1894. Trang 111 When and where was Marie Curie born?2 What kind of student was she? 3 Why did she work as a private ... at tests and exams She is brilliant. He is not a teacher He teaches in a university He is a professor. I’m watching an interesting program on TV An advertisement interrupts me I hate this....
Ngày tải lên: 20/04/2021, 00:40
the electromagnetic origin of quantum theory and light
... interpretation of quantum theory developed here preserves the full applicability of electromagnetic field theory within atoms and, in turn, permits the construction of a new understanding of quantum theory ... THE ELECTROMAGNETIC oRIGIN OF QUANTUM THEORY AND LIGHT Second Edition This page intentionally left blank THE ELECTROMAGNETIC ORIGIN OF QUANTUM THEORY AND LIGHT Second Edition Dale M Grimes ... solution of quantum mechanical exchanges of electromagnetic energy without the separate axioms of the historic interpretation xv xvi The Electromagnetic Origin of Quantum Theory and Light Stable...
Ngày tải lên: 06/07/2014, 15:31
groen o., hervik s. einstein''s general theory of relativity
... relativity, and deduce some of the consequences of the theory The special theory of relativity was presented by Albert Einstein in 1905 It was founded on two postulates: The laws of physics are the same ... in this book The book offers a rigorous introduction to Einsteins general theory of relativity We start out from the rst principles of relativity and present to Einsteins theory in a self-contained ... special theory of relativity was included through the tacit assumption that the velocity of the reected light is c This is a consequence of the second postulate of special relativity; the velocity of...
Ngày tải lên: 24/04/2014, 17:06