Tools
Sorted by:
Try your query at:
 |
 |
 |
 |
 |
 |
Results 1 - 10
of
3,937,343
Spectral properties of the spin-boson Hamiltonian
- ANN. INST. H. POINCAR'E
, 1994
"... We consider a two level atom coupled to the radiation field. Using a Mourre type estimate, we provide a complete spectral characterization of the spin-boson Hamiltonian for sufficiently small, but nonzero coupling. In particular, the singular continuous spectrum is empty and the point spectrum consi ..."
Abstract
-
Cited by 12 (2 self)
- Add to MetaCart
We consider a two level atom coupled to the radiation field. Using a Mourre type estimate, we provide a complete spectral characterization of the spin-boson Hamiltonian for sufficiently small, but nonzero coupling. In particular, the singular continuous spectrum is empty and the point spectrum
Low-temperature dynamical simulation of spin-boson systems
- Phys. Rev. B
, 1994
"... The dynamics of spin-boson systems at very low temperatures has been studied using a real-time path-integral simulation technique which combines a stochastic Monte Carlo sampling over the quantum fluctuations with an exact treatment of the quasiclassical degrees of freedoms. To a large degree, this ..."
Abstract
-
Cited by 3 (0 self)
- Add to MetaCart
The dynamics of spin-boson systems at very low temperatures has been studied using a real-time path-integral simulation technique which combines a stochastic Monte Carlo sampling over the quantum fluctuations with an exact treatment of the quasiclassical degrees of freedoms. To a large degree
Incipience of quantum chaos in the spin-boson model
, 1995
"... Incipience of quantum chaos in the spin-boson model ..."
Probing a composite spin-boson environment
, 901
"... Abstract. We consider non-interacting multi-qubit systems as controllable probes of an environment of defects/impurities modelled as a composite spinboson environment. The spin-boson environment consists of a small number of quantum-coherent two-level fluctuators (TLFs) damped by independent bosonic ..."
Abstract
-
Cited by 3 (0 self)
- Add to MetaCart
Abstract. We consider non-interacting multi-qubit systems as controllable probes of an environment of defects/impurities modelled as a composite spinboson environment. The spin-boson environment consists of a small number of quantum-coherent two-level fluctuators (TLFs) damped by independent
Multivariable Feedback Control: Analysis
- span (B∗) und Basis B∗ = { ω1
, 2005
"... multi-input, multi-output feed-back control design for linear systems using the paradigms, theory, and tools of robust con-trol that have arisen during the past two decades. The book is aimed at graduate students and practicing engineers who have a basic knowledge of classical con-trol design and st ..."
Abstract
-
Cited by 529 (24 self)
- Add to MetaCart
multi-input, multi-output feed-back control design for linear systems using the paradigms, theory, and tools of robust con-trol that have arisen during the past two decades. The book is aimed at graduate students and practicing engineers who have a basic knowledge of classical con-trol design
On optimistic methods for concurrency control
- ACM Transactions on Database Systems
, 1981
"... Most current approaches to concurrency control in database systems rely on locking of data objects as a control mechanism. In this paper, two families of nonlocking concurrency controls are presented. The methods used are “optimistic ” in the sense that they rely mainly on transaction backup as a co ..."
Abstract
-
Cited by 547 (1 self)
- Add to MetaCart
Most current approaches to concurrency control in database systems rely on locking of data objects as a control mechanism. In this paper, two families of nonlocking concurrency controls are presented. The methods used are “optimistic ” in the sense that they rely mainly on transaction backup as a
The modern industrial revolution, exit, and the failure of internal control systems
- JOURNAL OF FINANCE
, 1993
"... Since 1973 technological, political, regulatory, and economic forces have been changing the worldwide economy in a fashion comparable to the changes experienced during the nineteenth century Industrial Revolution. As in the nineteenth century, we are experiencing declining costs, increaing average ( ..."
Abstract
-
Cited by 932 (7 self)
- Add to MetaCart
(but decreasing marginal) productivity of labor, reduced growth rates of labor income, excess capacity, and the requirement for downsizing and exit. The last two decades indicate corporate internal control systems have failed to deal effectively with these changes, especially slow growth
A Framework for Uplink Power Control in Cellular Radio Systems
- IEEE Journal on Selected Areas in Communications
, 1996
"... In cellular wireless communication systems, transmitted power is regulated to provide each user an acceptable connection by limiting the interference caused by other users. Several models have been considered including: (1) fixed base station assignment where the assignment of users to base stations ..."
Abstract
-
Cited by 636 (18 self)
- Add to MetaCart
power control problem can be reduced to finding a vector p of users' transmitter powers satisfying p I(p) where the jth constraint p j I j (p) describes the interference that user j must overcome to achieve an acceptable connection. This work unifies results found for these systems
A Tutorial on Visual Servo Control
- IEEE Transactions on Robotics and Automation
, 1996
"... This paper provides a tutorial introduction to visual servo control of robotic manipulators. Since the topic spans many disciplines our goal is limited to providing a basic conceptual framework. We begin by reviewing the prerequisite topics from robotics and computer vision, including a brief review ..."
Abstract
-
Cited by 822 (25 self)
- Add to MetaCart
review of coordinate transformations, velocity representation, and a description of the geometric aspects of the image formation process. We then present a taxonomy of visual servo control systems. The two major classes of systems, position-based and image-based systems, are then discussed. Since any
Results 1 - 10
of
3,937,343
