Non-hermitian physics

Y Ashida, Z Gong, M Ueda - Advances in Physics, 2020 - Taylor & Francis
A review is given on the foundations and applications of non-Hermitian classical and
quantum physics. First, key theorems and central concepts in non-Hermitian linear algebra …

Quantum thermal machines and batteries

S Bhattacharjee, A Dutta - The European Physical Journal B, 2021 - Springer
The seminal work by Sadi Carnot in the early nineteenth century provided the blueprint of a
reversible heat engine and the celebrated second law of thermodynamics eventually …

Shortcuts to adiabaticity for the quantum Rabi model: Efficient generation of giant entangled cat states via parametric amplification

YH Chen, W Qin, X Wang, A Miranowicz, F Nori - Physical Review Letters, 2021 - APS
We propose a method for the fast generation of nonclassical ground states of the Rabi
model in the ultrastrong and deep-strong coupling regimes via the shortcuts-to-adiabatic …

Geometric heat pump: Controlling thermal transport with time-dependent modulations

Z Wang, L Wang, J Chen, C Wang, J Ren - Frontiers of Physics, 2022 - Springer
The second law of thermodynamics dictates that heat simultaneously flows from the hot to
cold bath on average. To go beyond this picture, a range of works in the past decade show …

Geodesic path for the minimal energy cost in shortcuts to isothermality

G Li, JF Chen, CP Sun, H Dong - Physical Review Letters, 2022 - APS
Shortcuts to isothermality are driving strategies to steer the system to its equilibrium states
within finite time, and enable evaluating the impact of a control promptly. Finding the optimal …

Machine-learning-assisted quantum control in a random environment

T Huang, Y Ban, EY Sherman, X Chen - Physical Review Applied, 2022 - APS
Disorder in condensed matter and atomic physics is responsible for a great variety of
fascinating quantum phenomena, which are still challenging for understanding, not to …

Nonadiabatic control of geometric pum**

K Takahashi, K Fujii, Y Hino, H Hayakawa - Physical Review Letters, 2020 - APS
We study nonadiabatic effects of geometric pum**. With arbitrary choices of periodic
control parameters, we go beyond the adiabatic approximation to obtain the exact pum** …

Geometric heat pump and no-go restrictions of nonreciprocity in modulated thermal diffusion

Z Wang, J Chen, J Ren - Physical Review E, 2022 - APS
Thermodynamics strongly restricts the direction of heat flow in static macroscopic thermal
diffusive systems. To overcome this constraint, spatiotemporal modulated systems are used …

Shortcuts to adiabaticity with general two-level non-Hermitian systems

TZ Luan, HZ Shen, XX Yi - Physical Review A, 2022 - APS
Shortcuts to adiabaticity are alternative fast processes which reproduce the same final state
as the adiabatic process in a finite or even shorter time, which have been extended from …

Optimizing the relaxation route with optimal control

A Prados - Physical Review Research, 2021 - APS
We look into the minimization of the connection time between nonequilibrium steady states.
As a prototypical example of an intrinsically nonequilibrium system, a driven granular gas is …