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Spectral properties of Luttinger liquids: A comparative analysis of regular,... spiral Luttinger liquids
Spectral properties of Luttinger liquids: A comparative analysis of regular,... spiral Luttinger liquids

... On a spinoff from the LL theory, it has been shown in Refs. 37 and 38 that in the presence of a lattice of nuclear moments and of the hyperfine interaction, an exotic ordered phase emerges at low temperature in which the magnetic moments of the nuclei and the conduction electrons of a 1D conductor a ...
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... material for the investigation of lattice dynamics in out-ofequilibrium conditions. The photoexcitation of this material generates coherent phonons which have various point group symmetries.3,4 Time-resolved reflectivity and time-resolved x-ray diffraction show that the frequency of the totally symm ...
< 1 ... 53 54 55 56 57 58 59 60 61 ... 144 >

Density of states



In solid-state and condensed matter physics, the density of states (DOS) of a system describes the number of states per interval of energy at each energy level that are available to be occupied. Unlike isolated systems, like atoms or molecules in gas phase, the density distributions are not discrete like a spectral density but continuous. A high DOS at a specific energy level means that there are many states available for occupation. A DOS of zero means that no states can be occupied at that energy level. In general a DOS is an average over the space and time domains occupied by the system. Localvariations, most often due to distortions of the original system, are often called local density of states (LDOS). If the DOS of an undisturbedsystem is zero, the LDOS can locally be non-zero due to the presence of a local potential.
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