Results 131 to 140 of about 1,699,778 (381)

Scalable Thermal Engineering via Femtosecond Laser‐Direct‐Written Phononic Nanostructures

Advanced Functional Materials, EarlyView.
This study demonstrates that femtosecond laser‐induced periodic surface structures (fs‐LIPSS) can function as phononic metasurfaces, reducing thermal conductivity below the plain thin‐film limit. Phonon Monte Carlo analysis reveals that the periodic structures restrict phonon mean free paths.
Hiroki Hamma, Roman Anufriev, Kazuyoshi Fushinobu, Masahiro Nomura, Byunggi Kim   +4 more
wiley   +1 more source

Robustness of quantum chaos and anomalous relaxation in open quantum circuits

Nature Communications
Dissipation is a ubiquitous phenomenon that affects the fate of chaotic quantum many-body dynamics. Here, we show that chaos can be robust against dissipation but can also assist and anomalously enhance relaxation. We compute exactly the dissipative form
Takato Yoshimura, Lucas Sá
doaj   +1 more source

Bio‐Inspired Molecular Events in Poly(Ionic Liquids)

Advanced Functional Materials, EarlyView.
Originating from dipolar and polar inter‐ and intra‐chain interactions of the building blocks, the topologies and morphologies of poly(ionic liquids) (PIL) govern their nano‐ and micro‐processibility. Modulating the interactions of cation‐anion pairs with aliphatic dipolar components enables the tunability of properties, facilitated by “bottom‐up ...
Jiahui Liu, Marek W. Urban
wiley   +1 more source

Ground-state Stabilization of Open Quantum Systems by Dissipation

, 2015
Control by dissipation, or environment engineering, constitutes an important methodology within quantum coherent control which was proposed to improve the robustness and scalability of quantum control systems.
James, Matthew R., Pan, Yu, Ugrinovskii, Valery   +2 more
core   +1 more source

Pixelation‐Free, Monolithic Iontronic Pressure Sensors Enabling Large‐Area Simultaneous Pressure and Position Recognition via Machine Learning

Advanced Functional Materials, EarlyView.
A pixelation‐free, monolithic iontronic pressure sensor enables simultaneous pressure and position sensing over large areas. AC‐driven ion release generates spatially varying impedance pathways depending on the pressure. Machine learning algorithms effectively decouple overlapping pressure–position signals from the multichannel outputs, achieving high ...
Juhui Kim, Junseo Lee, Kwang‐Hun Choi, Seongil Im, Jae Hong Kim, Changsoon Choi, Junghwan Byun, Changhwan Shin, Ho Won Jang, Hyunsu Ju, Jung Ah Lim   +10 more
wiley   +1 more source

Simulating open-system molecular dynamics on analog quantum computers

Physical Review Research
Interactions of molecules with their environment influence the course and outcome of almost all chemical reactions. However, classical computers struggle to accurately simulate complicated molecule-environment interactions because of the steep growth of ...
Vanessa C. Olaya-Agudelo, Ben Stewart, Christophe H. Valahu, Ryan J. MacDonell, Maverick J. Millican, Vassili G. Matsos, Frank Scuccimarra, Ting Rei Tan, Ivan Kassal   +8 more
doaj   +1 more source

Dynamics of quantum dissipation systems interacting with Fermion and Boson grand canonical bath ensembles: Hierarchical equations of motion approach

, 2007
A hierarchical equations of motion formalism for a quantum dissipation system in a grand canonical bath ensemble surrounding is constructed, on the basis of the calculus-on-path-integral algorithm, together with the parametrization of arbitrary non ...
Breuer H. P., Dittrich T., Jinshuang Jin, JunYan Luo, Mukamel S., Nitzan A., Ping Cui, Pollard W. T., Rui-Xue Xu, Sven Welack, Xin-Qi Li, YiJing Yan, Zwanzig R. W.   +12 more
core   +2 more sources

Self‐Hybridized Exciton‐Polariton Photodetectors From Layered Metal‐Organic Chalcogenolates

Advanced Functional Materials, EarlyView.
Self‐hybridized exciton‐polariton photodetectors are demonstrated using high refractive index mithrene, eliminating the need for top mirrors. This simplified architecture enables tunable sub‐bandgap photodetection via lower exciton‐polariton states and enhanced carrier transport through ultrafast polariton group velocities.
Bongjun Choi, Adam D. Alfieri, Wangleong Chen, Deep Jariwala   +3 more
wiley   +1 more source

Observation of quantum-classical transition behavior of LGI in a dissipative quantum gas

Physical Review Research
The Leggett-Garg inequality (LGI) is a powerful tool for distinguishing between quantum and classical properties in studies of macroscopic systems.
Qinxuan Peng, Bolong Jiao, Hang Yu, Liao Sun, Haoyi Zhang, Jiaming Li, Le Luo   +6 more
doaj   +1 more source

Quantum spin chains with site dissipation

, 2004
We use Monte Carlo simulations to study chains of Ising- and XY-spins with dissipation coupling to the site variables. The phase diagram and critical exponents of the dissipative Ising chain in a transverse magnetic field have been computed previously ...
Caldeira A. O., Chakravarty S., Ferrenberg A. M., Fröhlich J., Guo M., Korshunov S. E., Leggett A. J., Luijten E., Luijten E., Pankov S., Sachdev S., Sachdev S., Schmid A., Schön G., Swendsen R. H., Troyer M., Werner P., Werner P.   +17 more
core   +1 more source