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3,225
Large steps in cloth simulation
 SIGGRAPH 98 Conference Proceedings
, 1998
"... The bottleneck in most cloth simulation systems is that time steps must be small to avoid numerical instability. This paper describes a cloth simulation system that can stably take large time steps. The simulation system couples a new technique for enforcing constraints on individual cloth particle ..."
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Cited by 576 (5 self)
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particles with an implicit integration method. The simulator models cloth as a triangular mesh, with internal cloth forces derived using a simple continuum formulation that supports modeling operations such as local anisotropic stretch or compression; a unified treatment of damping forces is included
Exact treatment of ℓ ̸ = 0 states
, 2004
"... Using the basic ingredient of supersymmetry, a general procedure for the treatment of quantum states having nonzero angular momenta is presented. Over the years the Schrödinger equation has been studied extensively regarding its exact solvability. Many advances have been made in this area by classif ..."
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Using the basic ingredient of supersymmetry, a general procedure for the treatment of quantum states having nonzero angular momenta is presented. Over the years the Schrödinger equation has been studied extensively regarding its exact solvability. Many advances have been made in this area
New exact treatment of the perturbed Coulomb interactions
, 2003
"... A novel method for the exact solvability of quantum systems is discussed and used to obtain closed analytical expressions in arbitrary dimensions for the exact solutions of the hydrogenic atom in the external potential ∆V (r) = br + cr 2, which is based on the recently introduced supersymmetric per ..."
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A novel method for the exact solvability of quantum systems is discussed and used to obtain closed analytical expressions in arbitrary dimensions for the exact solutions of the hydrogenic atom in the external potential ∆V (r) = br + cr 2, which is based on the recently introduced supersymmetric
Exact treatment of trapped imbalanced fermions in the BEC limit
, 2006
"... In the present contribution we shall analyze the effects of imbalancing the populations of twocomponent trapped fermions in the BEC (strongcoupling) limit of the attractive interaction between fermions of different components. In particular, we shall derive a set of coupled equations which describ ..."
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Cited by 1 (0 self)
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In the present contribution we shall analyze the effects of imbalancing the populations of twocomponent trapped fermions in the BEC (strongcoupling) limit of the attractive interaction between fermions of different components. In particular, we shall derive a set of coupled equations which describe composite bosons and excess fermions in this limit,
An operatorbased exact treatment of open quantum systems
, 2005
"... Abstract. Quantum mechanics must be regarded as open systems. On one hand, this is due to the fact that, like in classical physics, any realistic system is subjected to a coupling to an uncontrollable environment which influences it in a nonnegligible way. The theory of open quantum systems thus pl ..."
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Abstract. Quantum mechanics must be regarded as open systems. On one hand, this is due to the fact that, like in classical physics, any realistic system is subjected to a coupling to an uncontrollable environment which influences it in a nonnegligible way. The theory of open quantum systems thus play a major role in many applications of quantum physics since perfect isolation of quantum system is not possible and since a complete microscopic description or control of the environment degrees of freedom is not feasible or only partially so [1]. Practical considerations therefore force one to seek for a simpler, effectively probabilistic description in terms of an open system. There is a close physical and mathematical connection between the evolution of an open system, the state changes induced by quantum measurements, and the classical notion of a stochastic process. The paper provides a bibliographic review of this interrelations, it shows the mathematical equivalence between markovian master equation and generalized piecewise deterministic processes [1] and it introduces the open system in an open observed environment model. 1.
On the exact treatment of Time Dependent SelfInteraction Correction
, 811
"... We present a new formulation of the timedependent selfinteraction correction (TDSIC). It is derived variationally obeying explicitly the constraints on orthonormality of the occupied singleparticle orbitals. The thus emerging rather involved symmetry condition amongst the orbitals is dealt with ..."
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We present a new formulation of the timedependent selfinteraction correction (TDSIC). It is derived variationally obeying explicitly the constraints on orthonormality of the occupied singleparticle orbitals. The thus emerging rather involved symmetry condition amongst the orbitals is dealt with using two separate sets of (occupied) singleparticle wavefunctions, related by a unitary transformation. The doubleset TDSIC scheme is well suited for numerical implementation. We present results for laserexcited dynamics in a 1D model for a molecule and in fully fledged 3D calculations.
Exact Treatment of the Dispersion and Beam Interaction Impedance of a Thin Tape Helix Surrounded by a Radially Stratified Dielectric
, 1998
"... Exact treatment of the dispersion and beam interaction impedance of a thin tape helix surrounded by a radially stratified dielectric ..."
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Exact treatment of the dispersion and beam interaction impedance of a thin tape helix surrounded by a radially stratified dielectric
Exact Treatment of a Charge Independent Pairing Interaction in a Degenerate Model
, 1964
"... A charge independent pairing interaction in jj coupling scheme and a chargespin independent pairing interaction in LS coupling scheme are exactly solved in a degenerate model by the aid of group theory. Groups used here are independent of the number of states concerned unlike the usual shell mode ..."
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A charge independent pairing interaction in jj coupling scheme and a chargespin independent pairing interaction in LS coupling scheme are exactly solved in a degenerate model by the aid of group theory. Groups used here are independent of the number of states concerned unlike the usual shell
Exact Treatment of the Bound State Problems In the NonRelativistic Quantum Field Theory
, 1961
"... An exact equation for the bound state of nucleons in the static neutral scalar model is obtained by using the field equation for Heisenberg operator and the method of canonical transformaticn. The formulation of the eigenvalue problem is completed by the analyticity consideration. In particular, a b ..."
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An exact equation for the bound state of nucleons in the static neutral scalar model is obtained by using the field equation for Heisenberg operator and the method of canonical transformaticn. The formulation of the eigenvalue problem is completed by the analyticity consideration. In particular, a
Results 1  10
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3,225