中文
相关论文

相关论文: Calibration-free measurement of the phonon tempera…

200 篇论文

Probes that measure the local thermal properties of systems out of equilibrium are emerging as new tools in the study of nanoscale systems. One can then measure the temperature of a probe that is weakly coupled to a bias-driven system. By…

强关联电子 · 物理学 2015-05-13 LvZhou Ye , Dong Hou , Xiao Zheng , YiJing Yan , Massimiliano Di Ventra

We propose phonon spectroscopy by electric measurements of the low-temperature conductance of coupled-quantum dots, specifically employing dephasing of the quantum electronic transport by the phonons. The setup we consider consists of a…

介观与纳米尺度物理 · 物理学 2013-05-29 A. Ueda , O. Entin-Wohlman , M. Eto , A. Aharony

We demonstrate local detection of the electron temperature in a two-dimensionalmicrodomain using a quantum dot. Our method relies on the observation that a temperature bias across the dot changes the functional form of Coulomb-blockade…

介观与纳米尺度物理 · 物理学 2012-06-04 Simone Gasparinetti , Fabio Deon , Giorgio Biasiol , Lucia Sorba , Fabio Beltram , Francesco Giazotto

We study the effect of phonons on a proposed scheme for the direct measurement of two-electron spin states in a double quantum dot by monitoring the the noise of the current flowing through a quantum point contact coupled to one of the…

量子物理 · 物理学 2015-04-01 Katarzyna Roszak , Łukasz Marcinowski , Paweł Machnikowski

Thanks to their highly coherent emission and compact form factor, single axial mode diamond Raman lasers have been identified as a valuable asset for applications including integrated quantum technology, high resolution spectroscopy or…

光学 · 物理学 2022-08-17 Georgios Stoikos , Eduardo Granados

This paper describes the setup and the results of the direct on-wafer measurements of a FET noise parameters obtained with a source-pull method at temperatures down to T=4K and in the 5-12 GHz frequency range. The setup consists of a…

仪器与探测器 · 物理学 2026-05-19 Daniil Frolov , Jean-Olivier Plouchart , Utku Soylu

The electron and phonon temperature distribution function are calculated in semiconductors. We solved the coupled one-dimensional heat-diffussion equations in the linear approximation in which the physical parameters on the sample are…

凝聚态物理 · 物理学 2009-10-28 G. Gonzalez de la Cruz , Yu. G. Gurevich

The phonon thermal contribution to the melting temperature of nano-particles is inspected. The discrete summation of phonon states and its corresponding integration form as an approximation for a nano-particle or for a bulk system have been…

介观与纳米尺度物理 · 物理学 2015-06-23 Xiao-Hong Sui , Zongguo Wang , Kai Kang , Shaojing Qin , Chuilin Wang

We investigate the distribution and temperature-dependent optical properties of sharp, zero-phonon emission from defect-based single photon sources in multilayer hexagonal boron nitride (h-BN) flakes. We observe sharp emission lines from…

Quantum emitters based on atomic defects in layered hexagonal Boron Nitride (hBN) have emerged as promising solid state 'artificial atoms' with atom-like photophysical and quantum optoelectronic properties. Similar to other atom-like…

The motional sideband asymmetry of a mechanical oscillator interacting with a laser field can be observed when approaching the quantum ground state, where the zero-point energy of the mechanical oscillator becomes a sizable contribution to…

Coherent scattering of light by a single quantum emitter is a fundamental process at the heart of many proposed quantum technologies. Unlike atomic systems, solid-state emitters couple to their host lattice by phonons. Using a quantum dot…

We predict that phonon subband quantization can be detected in the non-linear electron current through double quantum dot qubits embedded into nano-size semiconductor slabs, acting as phonon cavities. For particular values of the dot level…

介观与纳米尺度物理 · 物理学 2009-11-07 S. Debald , T. Brandes , B. Kramer

We report a comprehensive Raman study of the phonon behaviour in PdSe$_2$ in the temperature range of 5 K to 300 K. A remarkable change in the Raman spectrum is observed at 120 K: a significant enhancement of the out-of-plane phonon…

When a quantum dot is subjected to a thermal gradient, the temperature of electrons entering the dot can be determined from the dot's thermocurrent if the conductance spectrum and background temperature are known. We demonstrate this…

An optimized sideband cooling in the presence of initial system correlations is investigated for a standard optomechanical system coupled to a general mechanical non-Markovian reservoir. We study the evolution of phonon number by…

量子物理 · 物理学 2023-11-27 Wen-Zhao Zhang , Ting Tan , Jie Zhao , Wenlin Li , Jiong Cheng

We report local time-resolved thermometry in a silicon nanowire quantum dot device designed to host a linear array of spin qubits. Using two alternative measurement schemes based on rf reflectometry, we are able to probe either local…

The phonon-assisted sticking rate of slow moving atoms impinging on an elastic membrane at nonzero temperature is studied analytically using a model with linear atom-phonon interactions, valid in the weak coupling regime. A perturbative…

介观与纳米尺度物理 · 物理学 2017-12-06 Dennis P. Clougherty

We experimentally and theoretically investigate dephasing of zero dimensional microcavity polaritons in electrically tunable single dot photonic crystal nanocavities. Such devices allow us to alter the dot-cavity detuning in-situ and to…

其他凝聚态物理 · 物理学 2009-12-21 A. Laucht , N. Hauke , J. M. Villas-Bôas , F. Hofbauer , M. Kaniber , G. Böhm , J. J. Finley

In this work, robustness of controlled density of optical states in doubly driven artificial atoms is studied under phonon dissipation. By using both perturbative and polaron approaches, we investigate the influence of carrier-phonon…

量子物理 · 物理学 2020-10-07 David F. Macias-Pinilla , Hanz Y. Ramírez
‹ 上一页 1 2 3 10 下一页 ›