Systematic Inclusion of High-Order Multi-Spin Correlations for the Spin-$1\over2$ $XXZ$ Models [PDF]
, 1994 We apply the microscopic coupled-cluster method (CCM) to the spin-$1\over2$ $XXZ$ models on both the one-dimensional chain and the two-dimensional square lattice.
C. F. Lo +28 more
core +2 more sources
The coupled-cluster approach to quantum many-body problem in a three-Hilbert-space reinterpretation [PDF]
, 2013 The quantum many-body bound-state problem in its computationally successful coupled cluster method (CCM) representation is reconsidered. In conventional practice one factorizes the ground-state wave functions $|\Psi\rangle= e^S |\Phi\rangle$ which live ...
Bishop, Raymond F., Znojil, Miloslav
core +4 more sources
Community health workers and stand-alone or integrated case management of malaria: a systematic literature review. [PDF]
, 2014 A systematic literature review was conducted to assess the effectiveness of strategies to improve community case management (CCM) of malaria. Forty-three studies were included; most (38) reported indicators of community health worker (CHW) performance ...
Buj, Valentina +8 more
core +1 more source
$^4$He energies and radii by the coupled-cluster method with many-body average potential [PDF]
, 2012 The reformulated coupled-cluster method (CCM), in which average many-body potentials are introduced, provides a useful framework to organize numerous terms appearing in CCM equations, which enables us to clarify the structure of the CCM theory and ...
Kohno, M., Okamoto, R.
core +1 more source
Phase Transitions in the Spin-Half J_1--J_2 Model [PDF]
, 1998 The coupled cluster method (CCM) is a well-known method of quantum many-body theory, and here we present an application of the CCM to the spin-half J_1--J_2 quantum spin model with nearest- and next-nearest-neighbour interactions on the linear chain and ...
A. V. Chubukov +57 more
core +3 more sources
Ab Initio Simulation of the Nodal Surfaces of Heisenberg Antiferromagnets [PDF]
, 1998 The spin-half Heisenberg antiferromagnet (HAF) on the square and triangular lattices is studied using the coupled cluster method (CCM) technique of quantum many-body theory. The phase relations between different expansion coefficients of the ground-state
Bishop, R. F. +2 more
core +2 more sources
Coupled Cluster Method Calculations Of Quantum Magnets With Spins Of General Spin Quantum Number [PDF]
, 2002 We present a new high-order coupled cluster method (CCM) formalism for the ground states of lattice quantum spin systems for general spin quantum number, $s$.
Bishop, R. F. +2 more
core +2 more sources
Familial multiple cavernous malformation syndrome : MR features in this uncommon but silent threat [PDF]
, 2016 Cerebral cavernous malformations (CCM) are vascular malformations in the brain and spinal cord. The familial form of cerebral cavernous malformation (FCCM) is uncommon.
Lemmerling, Marc +2 more
core +3 more sources
Race and native speakers in ELT: parents' perspectives in Hong Kong [PDF]
, 2011 English is used as an important means of international and intercultural communication around the world more than ever. Because of its widespread use in the global context, non-native speakers of English around the world outnumber native speakers by far (
Sung, CCM
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High-Order Coupled Cluster Calculations Via Parallel Processing: An Illustration For CaV$_4$O$_9$
, 2005 The coupled cluster method (CCM) is a method of quantum many-body theory that may provide accurate results for the ground-state properties of lattice quantum spin systems even in the presence of strong frustration and for lattices of arbitrary spatial ...
D. J. J. Farnell +6 more
core +1 more source