Wave-energy density and wave-momentum density of each species of a collisionless plasma
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چکیده
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Many-electron Wave Function and Momentum Density
Inelastic x-ray scattering at large momentum transfer is an ideal probe of the ground state of electrons in condensed matter. The experimental determination of the electron momentum density (EMD) is based on the Impulse Approximation (IA). In general, the EMD even in simple metals cannot be well represented by the mean-field Independent Particle Model (IPM). In other words, the many-electron wa...
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چکیده ندارد.
15 صفحه اولCoexistence of charge-density-wave and pair-density-wave orders in underdoped cuprates.
We analyze incommensurate charge-density-wave (CDW) and pair-density-wave (PDW) orders with transferred momenta (±Q,0)/(0,±Q) in underdoped cuprates within the spin-fermion model. Both orders appear due to an exchange of spin fluctuations before magnetic order develops. We argue that the ordered state with the lowest energy has nonzero CDW and PDW components with the same momentum. Such a state...
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ژورنال
عنوان ژورنال: Physical Review A
سال: 1980
ISSN: 0556-2791
DOI: 10.1103/physreva.21.1660