Results 51 to 60 of about 502,308 (345)
Dynamics of a quantum oscillator strongly and off-resonantly coupled with a two-level system
, 2009 Beyond the rotating-wave approximation, the dynamics of a quantum oscillator interacting strongly and off-resonantly with a two-level system exhibit beatings, whose period equals the revival time of the two-level system.
Armour +46 more
core +1 more source
Concepts and Key Technologies of Microelectromechanical Systems Resonators
Micromachines, 2022 In this paper, the basic concepts of the equivalent model, vibration modes, and conduction mechanisms of MEMS resonators are described. By reviewing the existing representative results, the performance parameters and key technologies, such as quality ...
Tianren Feng +4 more
doaj +1 more source
A quantum violation of the second law? [PDF]
, 2006 An apparent violation of the second law of thermodynamics occurs when an atom coupled to a zero-temperature bath, being necessarily in an excited state, is used to extract work from the bath.
G. W. Ford +3 more
core +3 more sources
A Capacitive Pressure Sensor Interface IC with Wireless Power and Data Transfer
Micromachines, 2020 This paper presents a capacitive pressure sensor interface circuit design in 180 nm XH018 CMOS technology for an implantable capacitive pressure sensor, which has a wireless power supply and wireless data transfer function.
Chaoping Zhang +3 more
doaj +1 more source
Unitary relation between a harmonic oscillator of time-dependent frequency and a simple harmonic oscillator with and without an inverse-square potential [PDF]
, 2000 The unitary operator which transforms a harmonic oscillator system of time-dependent frequency into that of a simple harmonic oscillator of different time-scale is found, with and without an inverse-square potential. It is shown that for both cases, this
A.N. Seleznyova +26 more
core +2 more sources
Antiperiodic oscillations [PDF]
Scientific Reports, 2013 The investigation of regular and irregular patterns in nonlinear oscillators is an outstanding problem in physics and in all natural sciences. In general, regularity is understood as tantamount to periodicity. However, there is now a flurry of works proving the existence of "antiperiodicity", an unfamiliar type of regularity.
Freire, Joana G. +4 more
openaire +3 more sources
Molecular bases of circadian magnesium rhythms across eukaryotes
FEBS Letters, EarlyView.Circadian rhythms in intracellular [Mg2+] exist across eukaryotic kingdoms. Central roles for Mg2+ in metabolism suggest that Mg2+ rhythms could regulate daily cellular energy and metabolism. In this Perspective paper, we propose that ancestral prokaryotic transport proteins could be responsible for mediating Mg2+ rhythms and posit a feedback model ...
Helen K. Feord, Gerben van Ooijen
wiley +1 more source
Phase transitions in a mechanical system coupled to Glauber spins
, 2010 A harmonic oscillator linearly coupled with a linear chain of Ising spins is investigated. The $N$ spins in the chain interact with their nearest neighbours with a coupling constant proportional to the oscillator position and to $N^{-1/2}$, are in ...
Bonilla, L. L., Carpio, A., Prados, A.
core +1 more source
Set-Valued and Variational Analysis, 2017 In previous work by Beer and Levi [8, 9], the authors studied the oscillation $ (f,A)$ of a function $f$ between metric spaces $\langle X,d \rangle$ and $\langle Y, \rangle$ at a nonempty subset $A$ of $X$, defined so that when $A =\{x\}$, we get $ (f,\{x\}) = (f,x)$, where $ (f,x)$ denotes the classical notion of oscillation of $f$ at the point $
Beer, Gerald, Cao, Jiling
openaire +2 more sources