搜索结果: 1-11 共查到“原子分子物理学 control”相关记录11条 . 查询时间(0.22 秒)
In principle, quantum-based devices such as computers and sensors could vastly outperform conventional digital technologies for carrying out many complex tasks. But developing such devices in practice...
Physicists Heat Freestanding Graphene to Control Curvature of Ripples（图）
Graphene. Materials Dynamics Flexible circuits Condensed matter physics Microelectromechanical system
2014/10/9
FAYETTEVILLE, Ark. – An international team of physicists, led by a research group at the University of Arkansas, has discovered that heating can be used to control the curvature of ripples in freestan...
Numerical Simulation of Nano Scanning in Intermittent-Contact Mode AFM under Q control
Numerical Simulation Nano Intermittent-Contact Mode AFM Q control Atomic Physics
2012/4/24
We investigate nano scanning in tapping mode atomic force microscopy (AFM) under quality (Q) control via numerical simulations performed in SIMULINK. We focus on the simulation of whole scan process r...
State Feedback Control for Adjusting the Dynamic Behavior of a Piezoactuated Bimorph Atomic Force Microscopy Probe
State Feedback Control Dynamic Behavior Piezoactuated Bimorph Atomic Microscopy Probe Atomic Physics
2012/4/24
We adjust the transient dynamics of a piezo-actuated bimorph Atomic Force Microscopy (AFM) probe using a state feedback controller. This approach enables us to adjust the quality factor and the resona...
Adaptive Q control for Tapping-mode Nano-scanning Using a Piezo-actuated Bimorph Probe
Adaptive Q control Tapping-mode Nano-scanning Piezo-actuated Bimorph Probe Atomic Physics
2012/4/24
A new approach, called Adaptive Q-control, for tapping-mode Atomic Force Microscopy (AFM) is introduced and implemented on a home-made AFM set-up utilizing a Laser Doppler Vibrometer (LDV) and a piezo...
Shape control of QDs studied by cross-sectional scanning tunneling microscopy
Shape control of QDs cross-sectional scanning tunneling microscopy
2010/11/23
We report on the magnetic and phononic excitation spectrum of Sr3Cr2O8 determined by THz and
infrared (IR) spectroscopy, specific heat, and electron spin resonance measurements. We identify the singl...
Chemical control of the charge state of nitrogen-vacancy centers in diamond
Chemical control of the charge state nitrogen-vacancy centers in diamond
2010/11/25
We investigate the e ect of surface termination on the charge state of nitrogen vacancy centers,which have been ion-implanted few nanometers below the surface of diamond. We nd that,when changing the...
CplexA: a Mathematica package to study macromolecular-assembly control of gene expression
macromolecular-assembly gene expression
2010/11/17
Summary: Macromolecular assembly vertebrates essential cellular processes, such as gene regulation and signal transduction. A major challenge for conventional computational methods to study these pro...
Coherent control of atomic excitation using off-resonant strong few-cycle pulses
Coherent control atomic excitation off-resonant strong few-cycle pulses
2010/11/9
We study the dynamics of a two-level system driven by an off-resonant few-cycle pulse which has a phase jump $\phi$ at $t=t_{0}$, in contrast to many cycle pulses, under non rotating-wave approximati...
Accurate control of a Bose-Einstein condensate by managing the atomic interaction
Bose-Einstein condensate atomic interaction
2010/4/2
We exploit the variation of the atomic interaction in order to move ultra-cold atoms across an AC-driven periodic lattice. By breaking relevant symmetries, a gathering of atoms is achieved. Accurate c...
Independent Control of Scattering Lengths in Multicomponent Quantum Gases
Independent Control of Scattering Lengths Multicomponent Quantum Gases
2010/4/12
We develop a method of simultaneous and independent control of different scattering lengths in ultracold multicomponent atomic gases, such as $ \mathrm{40}}$K or $^{\mathrm{40}} $K-$^{\mathrm{6}}$Li m...