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"Global Analytical Potential Energy Surfaces for High
... for the motion of the nuclei, mediated by the rapid motion of the electrons around the nuclei, in addition to the repulsive Coulomb repulsive potential between the nuclei. This effective potential is then used in the second step to obtain rovibrational states for the nuclei alone from a reduced Schr ...
... for the motion of the nuclei, mediated by the rapid motion of the electrons around the nuclei, in addition to the repulsive Coulomb repulsive potential between the nuclei. This effective potential is then used in the second step to obtain rovibrational states for the nuclei alone from a reduced Schr ...
Change Without Time - Publikationsserver der Universität Regensburg
... concept of quantum time in 1990. He showed in a two-oscillator model that, by using an energy constraint instead of time evolution, the algebra of constants of motion can be quantized and used to relate so-called1 partial observables. The main problem with the relational concept of time turns out to ...
... concept of quantum time in 1990. He showed in a two-oscillator model that, by using an energy constraint instead of time evolution, the algebra of constants of motion can be quantized and used to relate so-called1 partial observables. The main problem with the relational concept of time turns out to ...
New Journal of Physics Quantum interference-induced stability of repulsively Lea F Santos
... excitations are considered. The basis vectors used are states where each excitation is on a single site. They are eigenstates of the interaction part of Hamiltonians (1) and (2), such as for example, |0010i for H (1) or equivalently |↓↓↑↓i for H (2). Table 1 gives their energies E N for the cases wh ...
... excitations are considered. The basis vectors used are states where each excitation is on a single site. They are eigenstates of the interaction part of Hamiltonians (1) and (2), such as for example, |0010i for H (1) or equivalently |↓↓↑↓i for H (2). Table 1 gives their energies E N for the cases wh ...
TOPICS IN QUANTUM NANOSTRUCTURE PHYSICS: SPIN-ORBIT EFFECTS AND FAR-INFRARED RESPONSE TEMES DE F´
... the three spatial components of the density, which in addition is a simpler both conceptually and practically quantity to deal with. On the other hand, the exchange-correlation part of the electron-electron interaction, neglected or only partially taken into account in the above-mentioned approaches ...
... the three spatial components of the density, which in addition is a simpler both conceptually and practically quantity to deal with. On the other hand, the exchange-correlation part of the electron-electron interaction, neglected or only partially taken into account in the above-mentioned approaches ...
Ultracold atoms in optical lattices with long- PhD Thesis
... Since atoms are electrically neutral, they do not have the Coulomb repulsion that electrons do. Most of the atomic species being used in cold gas experiments are alkali atoms, such as 87 Rb (most frequently), 85 Rb, 40 K, 39 K, 23 Na, 7 Li, and 6 Li, and in fact only have significant short-ranged in ...
... Since atoms are electrically neutral, they do not have the Coulomb repulsion that electrons do. Most of the atomic species being used in cold gas experiments are alkali atoms, such as 87 Rb (most frequently), 85 Rb, 40 K, 39 K, 23 Na, 7 Li, and 6 Li, and in fact only have significant short-ranged in ...
Path Integrals — Elementary Properties and Simple Solutions
... yielding a product of δ-functions δ(pb − pN ) · · · δ(p1 − p0 ). As a conseqence, the integrals over the N momenta pn (n = 1, . . . , N) are all squeezed to the initial momentum pN = pN −1 = . . . = p1 = pa . A single a final δ-function 2πh̄δ(pb − pa ) ...
... yielding a product of δ-functions δ(pb − pN ) · · · δ(p1 − p0 ). As a conseqence, the integrals over the N momenta pn (n = 1, . . . , N) are all squeezed to the initial momentum pN = pN −1 = . . . = p1 = pa . A single a final δ-function 2πh̄δ(pb − pa ) ...
scattering states from time-dependent density functional theory
... could not be solved otherwise. The artist can always go back to the painting and retouch it. A good example is the research that led to the formulation of Density Functional Theory (DFT) [3]. Walter Kohn stepped aside to look at the well-established quantum theory of matter, from a different angle. ...
... could not be solved otherwise. The artist can always go back to the painting and retouch it. A good example is the research that led to the formulation of Density Functional Theory (DFT) [3]. Walter Kohn stepped aside to look at the well-established quantum theory of matter, from a different angle. ...
Quantum fluctuations in modulated nonlinear oscillators Vittorio Peano and M I Dykman
... Many nontrivial aspects of oscillator dynamics are related to the nonlinearity. Essentially all currently studied mesoscopic vibrational systems display nonlinearity. For weak damping, even small nonlinearity becomes important. It makes the frequencies of transitions between adjacent oscillator ener ...
... Many nontrivial aspects of oscillator dynamics are related to the nonlinearity. Essentially all currently studied mesoscopic vibrational systems display nonlinearity. For weak damping, even small nonlinearity becomes important. It makes the frequencies of transitions between adjacent oscillator ener ...
Schrödinger operators and their spectra
... There is a strong experimental evidence that our world is composed of atoms and that an atom looks like a microscopic planetary system (Rutherford’s experiment with α particles). There is a heavy, positively charged nucleus, made of protons and neutrons, which is surrounded by light, negatively char ...
... There is a strong experimental evidence that our world is composed of atoms and that an atom looks like a microscopic planetary system (Rutherford’s experiment with α particles). There is a heavy, positively charged nucleus, made of protons and neutrons, which is surrounded by light, negatively char ...
Synthetic Quantum Systems
... two superconductors. For the latter the barrier consists of a thin insulator. However, the similarity arises from the fact that all three systems are describable within a similar model. The modes are associated with two macroscopic wave functions with an overall phase for each. These wave functions ...
... two superconductors. For the latter the barrier consists of a thin insulator. However, the similarity arises from the fact that all three systems are describable within a similar model. The modes are associated with two macroscopic wave functions with an overall phase for each. These wave functions ...
Raman Spectroscopy
... effort has been devoted to estimation or measurement of force constants. For small molecules, and even for some extended structures such as peptides, reasonably accurate calculations of vibrational frequencies are possible with commercially available software. Vibrational Raman spectroscopy is not l ...
... effort has been devoted to estimation or measurement of force constants. For small molecules, and even for some extended structures such as peptides, reasonably accurate calculations of vibrational frequencies are possible with commercially available software. Vibrational Raman spectroscopy is not l ...
Q - PIMS
... (iii) To separate ions according to their m/e ratios, with the help of electric and magnetic fields. MASS SPECTROMETERS (a) Aston’s mass spectrograph: Aston’s mass spectrograph was first designed to identify the isotopes of an element on the basis of their atomic masses. (b) Dempster’s mass spectrom ...
... (iii) To separate ions according to their m/e ratios, with the help of electric and magnetic fields. MASS SPECTROMETERS (a) Aston’s mass spectrograph: Aston’s mass spectrograph was first designed to identify the isotopes of an element on the basis of their atomic masses. (b) Dempster’s mass spectrom ...
92, 075445 (2015)
... (2) Moreover, also in a general fashion, we demonstrate that the intrinsic behavior of excitations within and in the vicinity of the light cone would be that of the 2D exciton polaritons as determined by the full electromagnetic (rather than just electrostatic [23]) coupling of valley excitons takin ...
... (2) Moreover, also in a general fashion, we demonstrate that the intrinsic behavior of excitations within and in the vicinity of the light cone would be that of the 2D exciton polaritons as determined by the full electromagnetic (rather than just electrostatic [23]) coupling of valley excitons takin ...