We have exactly solved the relaxational dynamics of a model protein which possesses a kinetically perfect funnel-like energy landscape. We find that the dependence of the relaxation time, τ , on the density of states (DOS) and the energy level spacing distributions of the model displays several main types of behavior depending on the temperature T . This allows us to identify possible generic f...

We study theoretically the local density of states (DOS) in a topological Josephson junction. We show that the well-known 4π Josephson effect originates from the interference effect between two Majorana fermions (MFs) that are localized at the Josephson junction. In addition, the DOS for electrons (holes) shows the 4π interference information along each parity conserved energy spectrum. The DOS...

Thin Nb2O5 anodic films ( 20 nm thick) grown in phosphoric acid solution have been characterised by EIS and differential admittance study in a large range of potential and frequency. The overall electrical behaviour has been interpreted by means of the theory of amorphous semiconductor Schottky barrier in presence of a non-constant density of states (DOS). A comparison of DOS for films grown in...

We have measured the tunneling density of states (DOS) in a superconductor carrying a supercurrent or exposed to an external magnetic field. The pair correlations are weakened by the supercurrent, leading to a modification of the DOS and to a reduction of the gap. As predicted by the theory of superconductivity in diffusive metals, we find that this effect is similar to that of an external magn...

We introduce a simple but powerful zero temperature Stoner model to explain the unusual phase dia-gram of the ferromagnetic superconductor, UGe2. Triplet superconductivity is driven in the ferromagnetic phase by tuning the majority spin Fermi level through one of two peaks in the paramagnetic density of states (DOS). Each peak is associated with a metamagnetic jump in magnetization. The twin-pe...

Sodium cluster anions Na(n)(-) with n = 39-350 have been studied by low temperature photoelectron spectroscopy and density functional theory (DFT). The highly structured experimental spectra are in excellent agreement with the electronic density of states (DOS) of the DFT lowest energy structures. Even for the largest sizes, a pronounced sensitivity of the DOS on fine geometric details could be...

We have calculated the density of states (DOS) of a GaAs–GaAl superlattice whose ratio between the potential energy of the impurities and the potential energy of the atoms at the lattice is a nth power of the golden mean t 1⁄4 ð1 þ ffiffi 5 p Þ=2; ðn 1⁄4 1; 2; 3;...Þ: Our theory uses Dyson’s equation together with a transfer-matrix treatment, within the tight-binding Hamiltonian model. The elec...

The average density of states (DoS) of the one-dimensional Dirac Hamiltonian with a random mass on a finite interval [0, L] is derived. Our method relies on the eigenvalues distributions (extreme value statistics problem) which are obtained explicitly. The well-known Dyson singularity %( ;L) ∼ − L | | ln3 | | is recovered above the crossover energy c ∼ exp− √ L. Below c we find a log-normal sup...

We study the tunneling density of states ~DOS! of the interacting electron gas beyond the diffusive limit. A strong correction to the DOS persists even at electron energies exceeding the inverse transport relaxation time, which could not be expected from the well-known Altshuler-Aronov-Lee ~AAL! theory. This correction originates from the interference between the electron waves scattered by an ...