Zobrazeno 1 - 10
of 6 329
pro vyhledávání: '"full counting"'
The statistics of fluctuations on large regions of space encodes universal properties of many-body systems. At equilibrium, it is described by thermodynamics. However, away from equilibrium such as after quantum quenches, the fundamental principles a
Externí odkaz:
http://arxiv.org/abs/2411.14406
Noise and current measurements are key tools for studying mesoscopic systems, revealing insights beyond conductance alone. For instance, noise measurements show that transport carriers in conventional superconductors have charge 2e. The noise power a
Externí odkaz:
http://arxiv.org/abs/2411.02011
Autor:
Valli, Angelo, Moca, Cătălin Paşcu, Werner, Miklós Antal, Kormos, Márton, Krajnik, Žiga, Prosen, Tomaž, Zaránd, Gergely
We propose a numerical method to efficiently compute quantum generating functions (QGF) for a wide class of observables in one-dimensional quantum systems at high temperature. We obtain high-accuracy estimates for the cumulants and reconstruct full c
Externí odkaz:
http://arxiv.org/abs/2409.14442
Quantum transport is often characterized not just by mean observables like the particle or energy current, but by their fluctuations and higher moments, which can act as detailed probes of the physical mechanisms at play. However, relatively few theo
Externí odkaz:
http://arxiv.org/abs/2408.09477
Floquet theory and other established semiclassical approaches are widely used methods to predict the state of externally-driven quantum systems, yet, they do not allow to predict the state of the photonic driving field. To overcome this shortcoming,
Externí odkaz:
http://arxiv.org/abs/2407.17732
We consider directed polymers in 1+1 spatial dimension under action of an external repulsive potential along a line. Using the exact mapping onto imaginary time evolution of free fermions we find that for sufficiently strong potential the system of p
Externí odkaz:
http://arxiv.org/abs/2405.12651
Autor:
Gamayun, Oleksandr
For a one-dimensional system of free fermions, we derive a connection between the full counting statistics of domain-wall and alternating occupancy (N\'eel) states. This allows us to demonstrate asymptotic linear growth with time of the even cumulant
Externí odkaz:
http://arxiv.org/abs/2404.06881
Autor:
Kethepalli, Jitendra, Kulkarni, Manas, Kundu, Anupam, Majumdar, Satya N., Mukamel, David, Schehr, Grégory
Publikováno v:
J. Stat. Mech. 083206 (2024)
We investigate the full counting statistics (FCS) of a harmonically confined 1d short-range Riesz gas consisting of $N$ particles in equilibrium at finite temperature. The particles interact with each other through a repulsive power-law interaction w
Externí odkaz:
http://arxiv.org/abs/2403.18750
Publikováno v:
Phys. Rev. B 110 (2024) 115411
Electronic transport through nanostructures can be suppressed by coherent population trapping, in which quantum coherence leads to a dark state that decouples from the drain electrode. Finite transport, then, relies on decoherence of the dark state.
Externí odkaz:
http://arxiv.org/abs/2403.09840
Topological band theory has been studied for free fermions for decades, and one of the most profound physical results is the bulk-boundary correspondence. Recently a trend in topological physics is extending topological classification to mixed state.
Externí odkaz:
http://arxiv.org/abs/2402.15964