6 research outputs found
Spectral statistics, finite-size scaling and multifractal analysis of quasiperiodic chain with p-wave pairing
We study the spectral and wavefunction properties of a one-dimensional
incommensurate system with p-wave pairing and unveil that the system
demonstrates a series of particular properties in its ciritical region. By
studying the spectral statistics, we show that the bandwidth distribution and
level spacing distribution in the critical region follow inverse power laws,
which however break down in the extended and localized regions. By performing a
finite-size scaling analysis, we can obtain some critical exponents of the
system and find these exponents fulfilling a hyperscaling law in the whole
critical region. We also carry out a multifractal analysis on system's
wavefuntions by using a box-counting method and unveil the wavefuntions
displaying different behaviors in the critical, extended and localized regions.Comment: 9 pages, 8 figure
GLONASS
The Globalânaya Navigatsionnaya Sputnikova Sistema
(GLONASS) is a global navigation satellite
system developed by the Russian Federation.
Similar to its US counterpart, the NAVSTAR global
positioning system (GPS), GLONASS provides dualfrequency
L-band navigation signals for civil and
military navigation. Initiated in the 1980s, the
system first achieved its full operational capability
in 1995. Following a temporary degradation,
the nominal constellation of 24 satellites was ultimately
reestablished in 2011 and the system has
been in continued service since then. This chapter
describes the architecture and operations of
GLONASS and discusses its current performance. In
addition, the planned evolution of the space and
ground segment are outlined