Infrared Multiphoton Dissociation Spectroscopy of a Gas
... the underlying basis for these changes in frequencies. If the interpretation that the degree of red-shifting is directly related to the weakening of the uranium-oxo bonds in uranyl, then it should be possible to probe this effect by reactivity, such as oxoexchange in which the U−O bonds must be activ ...
... the underlying basis for these changes in frequencies. If the interpretation that the degree of red-shifting is directly related to the weakening of the uranium-oxo bonds in uranyl, then it should be possible to probe this effect by reactivity, such as oxoexchange in which the U−O bonds must be activ ...
Paper
... densities required [9]. When Feshbach resonances were explored in bosonic systems, strong interactions were always accompanied by strong losses, preventing the study of strongly interacting condensates [7, 10, 11]. The reason is that a Feshbach resonance couples the atomic Hilbert space to a resonan ...
... densities required [9]. When Feshbach resonances were explored in bosonic systems, strong interactions were always accompanied by strong losses, preventing the study of strongly interacting condensates [7, 10, 11]. The reason is that a Feshbach resonance couples the atomic Hilbert space to a resonan ...
Mixed-space approach for calculation of vibration
... jk unit cell, and Cαβ (P ,Q) is the real-space IFC between the j th atom within the primitive unit cell P and the kth atom within the primitive unit cell Q. Because of translational invariance ...
... jk unit cell, and Cαβ (P ,Q) is the real-space IFC between the j th atom within the primitive unit cell P and the kth atom within the primitive unit cell Q. Because of translational invariance ...
Mechanical Vibrations
... 1-1. They are idealized and called (1) the mass, (2) the spring, (3) the damper, and (4) the excitation. The first three elements describe the physical system. For example, it can be said that a given system consists of a mass, a spring, and a damper arranged as shown in the figure. Energy may be st ...
... 1-1. They are idealized and called (1) the mass, (2) the spring, (3) the damper, and (4) the excitation. The first three elements describe the physical system. For example, it can be said that a given system consists of a mass, a spring, and a damper arranged as shown in the figure. Energy may be st ...
Oscillations of Mechanical Systems
... In each case of damped harmonic motion, the amplitude dies out as t gets large. But the driving force has a constant amplitude and thus it will dominate. We therefore refer to the complementary function as the transient part of the solution and call yp the steady-state solution. ...
... In each case of damped harmonic motion, the amplitude dies out as t gets large. But the driving force has a constant amplitude and thus it will dominate. We therefore refer to the complementary function as the transient part of the solution and call yp the steady-state solution. ...
From Molecules to Cooper Pairs: Experiments in the BEC
... parameters of 6 Li. These data enable a quantitative comparison of the experimental results with the predictions of the crossover theory and are used throughout this thesis. The experiments in the BEC-BCS crossover support the expected superfluidity of the strongly interacting Fermi gas. The next gr ...
... parameters of 6 Li. These data enable a quantitative comparison of the experimental results with the predictions of the crossover theory and are used throughout this thesis. The experiments in the BEC-BCS crossover support the expected superfluidity of the strongly interacting Fermi gas. The next gr ...
Resonance
In physics, resonance is a phenomenon that occurs when a given system is driven by another vibrating system or external force to oscillate with greater amplitude at a specific preferential frequency.Frequencies at which the response amplitude is a relative maximum are known as the system's resonant frequencies, or resonance frequencies. At resonant frequencies, small periodic driving forces have the ability to produce large amplitude oscillations. This is because the system stores vibrational energy.Resonance occurs when a system is able to store and easily transfer energy between two or more different storage modes (such as kinetic energy and potential energy in the case of a pendulum). However, there are some losses from cycle to cycle, called damping. When damping is small, the resonant frequency is approximately equal to the natural frequency of the system, which is a frequency of unforced vibrations. Some systems have multiple, distinct, resonant frequencies.Resonance phenomena occur with all types of vibrations or waves: there is mechanical resonance, acoustic resonance, electromagnetic resonance, nuclear magnetic resonance (NMR), electron spin resonance (ESR) and resonance of quantum wave functions. Resonant systems can be used to generate vibrations of a specific frequency (e.g., musical instruments), or pick out specific frequencies from a complex vibration containing many frequencies (e.g., filters).The term Resonance (from Latin resonantia, 'echo', from resonare, 'resound') originates from the field of acoustics, particularly observed in musical instruments, e.g. when strings started to vibrate and to produce sound without direct excitation by the player.