Bohm Trajectory Approach to Timing Electrons

2007 ◽  
pp. 129-162 ◽  
Author(s):  
C. Richard Leavens
Keyword(s):  
Trajectory Approach

scholarly journals A novel social distancing analysis in urban public space: A new online spatio-temporal trajectory approach

2021 ◽  
Vol 68 ◽  
pp. 102765
Author(s):  
Jie Su ◽  
Xiaohai He ◽  
Linbo Qing ◽  
Tong Niu ◽  
Yongqiang Cheng ◽  
...  
Keyword(s):  
Public Space ◽  
Urban Public Space ◽  
Social Distancing ◽  
Trajectory Approach ◽  
Spatio Temporal ◽  
Temporal Trajectory

scholarly journals The quantum trajectory approach to quantum feedback control of an oscillator revisited

2012 ◽  
Vol 370 (1979) ◽  
pp. 5338-5353 ◽  
Author(s):  
Andrew C. Doherty ◽  
A. Szorkovszky ◽  
G. I. Harris ◽  
W. P. Bowen
Keyword(s):  
Master Equation ◽  
Quantum Trajectory ◽  
Measurement Sensitivity ◽  
Position Measurement ◽  
Stochastic Master Equation ◽  
Trajectory Approach ◽  
Quantum Feedback ◽  
Master Equation Approach ◽  
Rotating Wave ◽  
Parametric Driving

We revisit the stochastic master equation approach to feedback cooling of a quantum mechanical oscillator undergoing position measurement. By introducing a rotating wave approximation for the measurement and bath coupling, we can provide a more intuitive analysis of the achievable cooling in various regimes of measurement sensitivity and temperature. We also discuss explicitly the effect of backaction noise on the characteristics of the optimal feedback. The resulting rotating wave master equation has found application in our recent work on squeezing the oscillator motion using parametric driving and may have wider interest.

THE QUANTUM TRAJECTORY APPROACH TO GEOMETRIC PHASE FOR OPEN SYSTEMS

2005 ◽  
Vol 20 (22) ◽  
pp. 1635-1654 ◽  
Author(s):  
ANGELO CAROLLO
Keyword(s):  
Quantum System ◽  
Open System ◽  
Geometric Phase ◽  
Open Systems ◽  
Quantum Trajectory ◽  
Operational Method ◽  
Markovian Approximation ◽  
Physical Systems ◽  
Quantum Jump ◽  
Trajectory Approach

The quantum jump method for the calculation of geometric phase is reviewed. This is an operational method to associate a geometric phase to the evolution of a quantum system subjected to decoherence in an open system. The method is general and can be applied to many different physical systems, within the Markovian approximation. As examples, two main source of decoherence are considered: dephasing and spontaneous decay. It is shown that the geometric phase is to very large extent insensitive to the former, i.e. it is independent of the number of jumps determined by the dephasing operator.

Classifying and predicting risky driving among novice drivers: A group-based trajectory approach

2019 ◽  
Vol 68 ◽  
pp. 215-222 ◽  
Author(s):  
Celestin Missikpode ◽  
Corinne Peek-Asa ◽  
Daniel V. McGehee ◽  
Robert Wallace
Keyword(s):  
Risky Driving ◽  
Novice Drivers ◽  
Trajectory Approach

Number of Sexual Partners and Social Disorganization: A Developmental Trajectory Approach

2013 ◽  
Vol 34 (12) ◽  
pp. 1020-1034 ◽  
Author(s):  
Richard Tewksbury ◽  
George E. Higgins ◽  
David Patrick Connor
Keyword(s):  
Social Disorganization ◽  
Sexual Partners ◽  
Developmental Trajectory ◽  
Trajectory Approach ◽  
Number Of Sexual Partners
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