PC 4421 Lecture 1: Nuclei and Nuclear Forces
... If we assume that a nucleon interacts with ALL the other nucleons in the nucleus then there should be A(A-1)/2 pairs of nuclei. Since the binding energy increases with the number of interactions BE ~ A(A-1)/2. Then BE/A would be linear, which it is but only roughly up to around A~10. The binding ene ...
... If we assume that a nucleon interacts with ALL the other nucleons in the nucleus then there should be A(A-1)/2 pairs of nuclei. Since the binding energy increases with the number of interactions BE ~ A(A-1)/2. Then BE/A would be linear, which it is but only roughly up to around A~10. The binding ene ...
Fulltext
... attention. The magnetic translation operators were discussed by Zak [3] and Brown [4] in the context of discussing translational symmetry in the presence of a magnetic field. The magnetic translational operators do not commute and are oscillator-like. They do commute with the velocitys operators in ...
... attention. The magnetic translation operators were discussed by Zak [3] and Brown [4] in the context of discussing translational symmetry in the presence of a magnetic field. The magnetic translational operators do not commute and are oscillator-like. They do commute with the velocitys operators in ...
this essay - u.arizona.edu
... magnetic field. But if many silver atoms are similarly prepared by some source, the relative frequencies with which they are detected at various locations do provide information about the source, and thereby permit reliable statistical inferences about the measured behavior of such silver atoms in o ...
... magnetic field. But if many silver atoms are similarly prepared by some source, the relative frequencies with which they are detected at various locations do provide information about the source, and thereby permit reliable statistical inferences about the measured behavior of such silver atoms in o ...
1. Structure of Matter
... electron does not radiate its kinetic energy away as it revolves around the nucleus? The Schrödinger equation completely discards any concept of a definite path or trajectory of a particle; what was formerly known as an "orbit" is now an "orbital", defined as the locations in space at which the prob ...
... electron does not radiate its kinetic energy away as it revolves around the nucleus? The Schrödinger equation completely discards any concept of a definite path or trajectory of a particle; what was formerly known as an "orbit" is now an "orbital", defined as the locations in space at which the prob ...
Aspects of quantum work - Physik Uni-Augsburg
... [2,3] to name just a few, there is an urgent need of a theoretical foundation of what work means in quantum mechanics and how it can be defined in an operational way. One reason why work does not simply fall into the category of observables like position, linear and angular momentum, and energy come ...
... [2,3] to name just a few, there is an urgent need of a theoretical foundation of what work means in quantum mechanics and how it can be defined in an operational way. One reason why work does not simply fall into the category of observables like position, linear and angular momentum, and energy come ...
Quantum effects in energy and charge transfer in an
... sites. This term is given in Appendix A. The fourth term of Eq. (1) describes excitonic couplings between the chromophores k and l. The matrix element Vkl is a measure of an interchromophoric coupling strength. The last term in Eq. (1) describes the electron tunneling from excited states of the porp ...
... sites. This term is given in Appendix A. The fourth term of Eq. (1) describes excitonic couplings between the chromophores k and l. The matrix element Vkl is a measure of an interchromophoric coupling strength. The last term in Eq. (1) describes the electron tunneling from excited states of the porp ...
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... quantum mechanics. The coherent state could be understood as classical particle, though it is quite a wavepacket (it is just so small that we had not enough resolution to tell it from a particle). So, if we have only classical forces and harmonic oscillators, there is no way to obtain a “real” quant ...
... quantum mechanics. The coherent state could be understood as classical particle, though it is quite a wavepacket (it is just so small that we had not enough resolution to tell it from a particle). So, if we have only classical forces and harmonic oscillators, there is no way to obtain a “real” quant ...
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... Received: 18 November 1997 / Received in final form: 24 November 1997 / Accepted: 8 January 1997 Abstract. According to the Harris-Luck criterion the relevance of a fluctuating interaction at the critical point is connected to the value of the fluctuation exponent ω. Here we consider different types ...
... Received: 18 November 1997 / Received in final form: 24 November 1997 / Accepted: 8 January 1997 Abstract. According to the Harris-Luck criterion the relevance of a fluctuating interaction at the critical point is connected to the value of the fluctuation exponent ω. Here we consider different types ...
Cotunneling in the ν Robert Zielke, Bernd Braunecker,
... fixed, Nq = n dnq dnq . The charging energy of the dot is much larger than the single-particle level spacing and particularly larger than μl − εnq . Tunneling processes through energetically distant dot levels are suppressed. The dot forms an effective two-level system that contains one particle. ...
... fixed, Nq = n dnq dnq . The charging energy of the dot is much larger than the single-particle level spacing and particularly larger than μl − εnq . Tunneling processes through energetically distant dot levels are suppressed. The dot forms an effective two-level system that contains one particle. ...
Document
... Theorem 1. Given any pair of non-orthogonal qudits, in general, there is no physical operation that can partially erase them. Linearity of quantum theory gives us even more than the above. Theorem 2. Any arbitrary qudit cannot be partially erased by an irreversible operation. Ref.:-A.K.Pati & B.C.Sa ...
... Theorem 1. Given any pair of non-orthogonal qudits, in general, there is no physical operation that can partially erase them. Linearity of quantum theory gives us even more than the above. Theorem 2. Any arbitrary qudit cannot be partially erased by an irreversible operation. Ref.:-A.K.Pati & B.C.Sa ...
Reversible work extraction in a hybrid opto
... Thermodynamics was born in the 19th century, with the practical purpose of understanding the mechanism governing the conversion of heat present in reservoirs of disorganized energy, into useful mechanical work extracted in reservoirs of organized energy, by exploiting the transformations of a calori ...
... Thermodynamics was born in the 19th century, with the practical purpose of understanding the mechanism governing the conversion of heat present in reservoirs of disorganized energy, into useful mechanical work extracted in reservoirs of organized energy, by exploiting the transformations of a calori ...
Particle in a box
In quantum mechanics, the particle in a box model (also known as the infinite potential well or the infinite square well) describes a particle free to move in a small space surrounded by impenetrable barriers. The model is mainly used as a hypothetical example to illustrate the differences between classical and quantum systems. In classical systems, for example a ball trapped inside a large box, the particle can move at any speed within the box and it is no more likely to be found at one position than another. However, when the well becomes very narrow (on the scale of a few nanometers), quantum effects become important. The particle may only occupy certain positive energy levels. Likewise, it can never have zero energy, meaning that the particle can never ""sit still"". Additionally, it is more likely to be found at certain positions than at others, depending on its energy level. The particle may never be detected at certain positions, known as spatial nodes.The particle in a box model provides one of the very few problems in quantum mechanics which can be solved analytically, without approximations. This means that the observable properties of the particle (such as its energy and position) are related to the mass of the particle and the width of the well by simple mathematical expressions. Due to its simplicity, the model allows insight into quantum effects without the need for complicated mathematics. It is one of the first quantum mechanics problems taught in undergraduate physics courses, and it is commonly used as an approximation for more complicated quantum systems.