Results 111 to 120 of about 163,748 (368)

Two-point phase correlations of a one-dimensional bosonic Josephson junction

open access: yes, 2011
We realize a one-dimensional Josephson junction using quantum degenerate Bose gases in a tunable double well potential on an atom chip. Matter wave interferometry gives direct access to the relative phase field, which reflects the interplay of thermally ...
A. Perrin   +13 more
core   +1 more source

Improving the Capacity Retention of Poly(vinylphenothiazine) as Battery Electrode Material by Pore Size Engineering of Porous N‐Doped Carbon Nanospheres as Conductive Additive

open access: yesAdvanced Functional Materials, EarlyView.
By using (meso)porous N‐doped carbon nanospheres with tailored intraparticle porosity and constant particle size as conductive carbon in PVMPT‐based organic battery electrodes, the complete volume of the carbon is accessible for the immobilization of PVMPT, resulting in high accessible specific capacities while maintaining a good rate capability and ...
Niklas Ortlieb   +6 more
wiley   +1 more source

Theoretical and Experimental Analysis of Optical Frequency Combs Synchronized to a Microwave Reference Achieving 10−19-Level Additional Stability

open access: yesPhotonics
This paper presents a combined theoretical and experimental method for noise suppression in the repetition frequency (fr) locking of erbium-doped fiber optical frequency combs (OFCs).
Xin Chen   +7 more
doaj   +1 more source

Chaotic Phase Synchronization in Bursting-neuron Models Driven by a Weak Periodic Force

open access: yes, 2012
We investigate the entrainment of a neuron model exhibiting a chaotic spiking-bursting behavior in response to a weak periodic force. This model exhibits two types of oscillations with different characteristic time scales, namely, long and short time ...
A. S. Pikovsky   +12 more
core   +1 more source

Scaling‐Up of Structural Superlubricity: Challenges and Opportunities

open access: yesAdvanced Functional Materials, EarlyView.
At increasing length‐scales, structural superlubricity (SSL) faces challenges from physical and chemical energy dissipation pathways. This study reviews recent experimental and theoretical progress on these challenges facing the scaling‐up of SSL, as well as perspectives on future directions for realizing and manipulating macroscale superlubricity ...
Penghua Ying   +4 more
wiley   +1 more source

Optical phase-sensitive amplification using two phase-locked light sources

open access: yesOptical Amplifiers and Their Applications, 1997
Optical phase-sensitive amplification using individual pump and signal light sources is presented for the first time. In the experiment, optical phase of pump and signal light is locked by an optical phase-locked loop (OPLL). Stable optical phase-locking is achieved and optical phase-sensitive amplification with a gain of 12 dB is successfully ...
Atsushi Takada, Wataru Imajuku
openaire   +3 more sources

Exploiting the Lock: Leveraging MiG-V's Logic Locking for Secret-Data Extraction [PDF]

open access: yes
The MiG-V was designed for high-security applications and is the first commercially available logic-locked RISC-V processor on the market. In this context logic locking was used to protect the RISC-V processor design during the untrusted manufacturing process by using key-driven logic gates to obfuscate the original design. Although this method defends
arxiv   +1 more source

Injection locking of optomechanical oscillators via acoustic waves

open access: yes, 2017
Injection locking is a powerful technique for synchronization of oscillator networks and controlling the phase and frequency of individual oscillators using similar or other types of oscillators.
Hossein-Zadeh, Mani, Huang, Ke
core   +1 more source

Multi‐Pathway Upconversion Emission in Symmetry‐Broken Nanocavities: Broadband Multiresonant Enhancement and Anti‐Correlated Interfacial Sensitivity

open access: yesAdvanced Functional Materials, EarlyView.
Symmetry‐broken plasmonic nanoantenna arrays achieve broadband multiresonant enhancement of second harmonic generation (SHG), third harmonic generation (THG), and upconversion photoluminescence (UCPL), under femtosecond laser excitation across the near‐infrared range (1000–1600 nm).
Elieser Mejia   +9 more
wiley   +1 more source

Discovery of an Intrinsic Antiferromagnetic Semiconductor EuSc2Te4 With Magnetism‐Driven Nonlinear Transport

open access: yesAdvanced Functional Materials, EarlyView.
EuSc₂Te₄, an antiferromagnetic semiconductor, exhibits a nonlinear Hall effect (NLHE) characterized by quadratic current–voltage behavior. Combined experimental and theoretical studies reveal that this NLHE is linked to its antiferromagnetism and involves contributions from the quantum metric.
Seng Huat Lee   +15 more
wiley   +1 more source

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