Results 131 to 140 of about 1,956,567 (332)

Long-range quantum tunneling via matter waves

Communications Physics
Quantum tunneling is a quantum phenomenon in which a microscopic object crosses through a potential barrier even if its energy cannot overcome the barrier. A general belief is that tunneling occurs only when the barrier width is comparable to, or smaller
Yuan-Xing Yang, Si-Yuan Bai, Jun-Hong An
doaj   +1 more source

Many-body Tunneling and Nonequilibrium Dynamics of Doublons in Strongly Correlated Quantum Dots

Scientific Reports, 2017
Quantum tunneling dominates coherent transport at low temperatures in many systems of great interest. In this work we report a many–body tunneling (MBT), by nonperturbatively solving the Anderson multi-impurity model, and identify it a fundamental ...
WenJie Hou, YuanDong Wang, JianHua Wei, ZhenGang Zhu, YiJing Yan   +4 more
doaj   +1 more source

Macroscopic resonant tunneling of magnetic flux

, 2000
We have developed a quantitative theory of resonant tunneling of magnetic flux between discrete macroscopically distinct quantum states in SQUID systems. The theory is based on the standard density-matrix approach. Its new elements include the discussion
A. Garg, A. Peres, A.J. Leggett, A.O. Caldeira, A.V. Zhuravlev, B.Ya. Zel’dovich, D. V. Averin, D.V. Averin, D.V. Averin, D.V. Averin, J. E. Lukens, J.E. Mooij, J.M. Schmidt, J.R. Friedman, Jonathan R. Friedman, K. Blum, K.K. Likharev, L.B. Ioffe, L.D. Landau, L.E. Ballentine, P. Silvestrini, P. Silvestrini, R. Rouse, S.A. Gurvitz, T. Dittrich, T. Fujisawa, T.A. Fulton, T.H. Stoof, Yu. Makhlin, Yu.N. Ovchinnikov   +29 more
core   +1 more source

Electric Field‐Dependent Conductivity as Probe for Charge Carrier Delocalization and Morphology in Organic Semiconductors

Advanced Functional Materials, EarlyView.
Applying a high electric field to a doped organic semiconductor heats up the charge carrier distribution beyond the lattice temperature, enhancing conductivity. It is shown that the associated effective temperature can be used to extract the effective localization length, which is a characteristic length scale of charge transport and provides ...
Morteza Shokrani, Felix Maximilian Graf, Anton Kompatscher, Dennis Derewjanko, Martijn Kemerink   +4 more
wiley   +1 more source

Quantum tunneling in magnetic tunneling junctions

Revista de I + D Tecnológico, 2012
This paper reports on the study of ferromagnetic tunneling junctions produced by magnetron sputtering technique and deposited under oxidation conditions that lead to low potential barrier height, low asymmetrical barrier and quantum tunneling as the ...
Evgeni Cruz de Gracia, Lucio Strazzabosco Dorneles, Luiz Fernando Schelp, Sérgio Ribeiro Teixiera, Mario Norberto Baibich   +4 more
doaj  

Carbon Contacts to Proteins Enable Robust, Biocompatible Electronic Junctions with Near‐Activation‐less Conduction Down to 10 K

Advanced Functional Materials, EarlyView.
A robust solid‐state protein junction with a semi‐transparent eC/Au electrode allows photoexcitation of the bacterio‐rhodopsin, bR layer, to isomerize the bR retinal. The resulting photo‐response shows the protein is functional in the solid‐state junction.
Shailendra K. Saxena, Sudipta Bera, Tatyana Bendikov, Israel Pecht, Mordechai Sheves, David Cahen   +5 more
wiley   +1 more source

Geometry engineering of tunneling transistors in transition metal dichalcogenide nanoribbon heterojunctions

Communications Physics
Graphene nanoribbon heterojunctions are promising one-dimensional materials for quantum electronics due to their tunable bandgap and sizable quantum confinement.
Ye Jiang, Minjiang Dan, Shuaiwei Fan, Gongwei Hu, Fobao Huang, Wei-Yang Wang, Qiao Chen   +6 more
doaj   +1 more source

Bio‐Inspired Multimodal Hardware Front‐End Enabled by 2D Floating‐Gate Memory for UAV Perception

Advanced Functional Materials, EarlyView.
A MoS2/h‐BN /graphene floating‐gate memory underpins a bio‐inspired multimodal front end that integrates visual, inertial, and airflow cues. A 4 × 4 FG memory array encodes temporal intensity differences, while IMU‐ and airflow‐driven threshold modulation suppresses self‐motion artifacts, enabling fast, low‐power, robust autonomous UAV tracking and ...
Lianghao Guo, Yue Cheng, Cong Li, Xiaoyu Guo, Jiankai Yin, Dadong Fan, Zhenyu Xu, Chenyu Tang, Arokia Nathan, Shuo Gao, Li Tao, Luigi G. Occhipinti   +11 more
wiley   +1 more source

Pioneering the Future: Principles, Advances, and Challenges in Organic Electrodes for Aqueous Ammonium‐Ion Batteries

Advanced Materials, Volume 37, Issue 13, April 2, 2025.
Leveraging the numerous advantages of ammonium‐ion (NH₄⁺)—including cost‐effectiveness, low corrosiveness, preferential orientation, and rapid diffusion kinetics—aqueous NH₄⁺ batteries (AAIBs) have gained significant attention. This review highlights and evaluates the progress of AAIBs utilizing organic electrode materials such as small molecules ...
Mangmang Shi, Xiaoyan Zhang
wiley   +1 more source

Stabilization of Kerr-cat qubits with quantum circuit refrigerator

npj Quantum Information
A periodically driven superconducting nonlinear resonator can implement a Kerr-cat qubit, which provides a promising route to a quantum computer with a long lifetime.
Shumpei Masuda, Shunsuke Kamimura, Tsuyoshi Yamamoto, Takaaki Aoki, Akiyoshi Tomonaga   +4 more
doaj   +1 more source