Results 151 to 160 of about 3,384,613 (196)
Some of the next articles are maybe not open access.
Densities of meson and baryon states
Physical Review Letters, 1992In tachyon-free string theories the ratio of the densities of bosonic and fermionic states must approach unity with increasing energy. This observation of Kutasov and Seiberg is considered in the context of a potential stringy description of the hadron spectrum.
, Freund, , Rosner
openaire +2 more sources
Density matrix tomography of singlet states
Journal of Magnetic Resonance, 2010First direct and quantitative study of singlet states using density matrix tomography is reported. A robust scheme for the tomography of a general density matrix of two spin 1/2 nuclei is introduced for this purpose. The study is carried out at different spin-lock conditions and the results are compared.
Soumya Singha, Roy, T S, Mahesh
openaire +2 more sources
Ferromagnetic stability and density of states
Physical Review B, 1993We discuss a simple criterion to recognize the possible appearance of ferromagnetism within the scope of the Stoner model. This criterion is based just on the features of the paramagnetic density of states and helps to understand magnetic phase diagrams and to predict ferromagnetic behavior.
, Fabricius, , Llois, , Dreyssé
openaire +2 more sources
Foundations of Physics, 1989
Let L be a quantum logic, here an orthoalgebra, and let Δ be a convex set of states on L. Then Δ generates a base-normed space, and the dual-order unit-normed space contains a canonically constructed homomorphic copy of L, denoted by eΔ(L). A convex set Δ of states on L is said to be ample provided that every state on L is obtained by restricting an ...
openaire +1 more source
Let L be a quantum logic, here an orthoalgebra, and let Δ be a convex set of states on L. Then Δ generates a base-normed space, and the dual-order unit-normed space contains a canonically constructed homomorphic copy of L, denoted by eΔ(L). A convex set Δ of states on L is said to be ample provided that every state on L is obtained by restricting an ...
openaire +1 more source
Density of states of quasi-one-dimensional charge-density and spin-density waves
Physical Review B, 1989Making use of the quasi-two-dimensional model of charge-density waves, we analyze the electron density of states of ${\mathrm{NbSe}}_{3}$ observed by the electron tunneling technique. The model provides excellent description of both the observed density of states and the temperature dependence of the energy gap.
, Huang, , Maki
openaire +2 more sources
1985
I shall talk on hadronic density of states and its implications in elementary particle physics and nuclear physics. These lectures will have very little to do with the density functional formalism, but I hope that they would be of sufficient interest to hold your attention.
openaire +1 more source
I shall talk on hadronic density of states and its implications in elementary particle physics and nuclear physics. These lectures will have very little to do with the density functional formalism, but I hope that they would be of sufficient interest to hold your attention.
openaire +1 more source
2011
Many applications of quantum mechanics require the concept of density of states. The notion of density of states is not entirely unique. Depending on the context and the requirements of the problem at hand, it most often refers to the number of quantum states per volume and per unit of energy, or to the number of states in a volume unit \(d^{3 ...
openaire +1 more source
Many applications of quantum mechanics require the concept of density of states. The notion of density of states is not entirely unique. Depending on the context and the requirements of the problem at hand, it most often refers to the number of quantum states per volume and per unit of energy, or to the number of states in a volume unit \(d^{3 ...
openaire +1 more source
Density of states for complex molecules
Physical Review A, 1994A framework is presented to compute absolute thermodynamic properties of complex molecules which are described algebraically. Using some basic properties of the algebraic formalism, it is pointed out that one can compute not only ensemble averages, but the absolute thermal quantities such as the density of states and partition function.
openaire +2 more sources