Rabi oscillations, Ramsey fringes and spin echoes
... When varying the delay between the end of a resonant irradiation and the measurement pulse at the optimal working point, the switching probability decays with a time constant T1 = 1.8 µs (see Fig. 4). Supposing that the energy relaxation of the system is only due to the bias circuitry, a calculation ...
... When varying the delay between the end of a resonant irradiation and the measurement pulse at the optimal working point, the switching probability decays with a time constant T1 = 1.8 µs (see Fig. 4). Supposing that the energy relaxation of the system is only due to the bias circuitry, a calculation ...
oscillations
... Periodic motion - period, frequency, displacement as a function of time. Periodic functions. Simple harmonic motion (S.H.M) and its equation; phase; oscillations of a spring–restoring force and force constant; energy in S.H.M.-kinetic and potential energies; simple pendulum–derivation of expression ...
... Periodic motion - period, frequency, displacement as a function of time. Periodic functions. Simple harmonic motion (S.H.M) and its equation; phase; oscillations of a spring–restoring force and force constant; energy in S.H.M.-kinetic and potential energies; simple pendulum–derivation of expression ...
High Resolution Laser Spectroscopy in Rubidium
... the stimulating beam. Two laser beams of the same frequency are incident upon a gas of atoms in anti-parallel directions. These two beams are tuned to the resonant frequency. When the more intense ”pump beam”, shines of the cell it excites a large number of atoms. The pump beam saturates the atoms s ...
... the stimulating beam. Two laser beams of the same frequency are incident upon a gas of atoms in anti-parallel directions. These two beams are tuned to the resonant frequency. When the more intense ”pump beam”, shines of the cell it excites a large number of atoms. The pump beam saturates the atoms s ...
14 Mass on a spring and other systems described by linear ODE
... Eventually, all the units in the model must agree. For the metric system the units are newtons (N ) for the force, kilograms (kg) for mass, meters (m) for length and s seconds for time, therefore the speed is given by m/s, the acceleration is m/s2 , the spring constant has units N/m, and the damping ...
... Eventually, all the units in the model must agree. For the metric system the units are newtons (N ) for the force, kilograms (kg) for mass, meters (m) for length and s seconds for time, therefore the speed is given by m/s, the acceleration is m/s2 , the spring constant has units N/m, and the damping ...
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.