Zobrazeno 1 - 10
of 186
pro vyhledávání: '"Tanamoto, Tetsufumi"'
Reservoir computing (RC) is one of the hottest research topic as an application of many physical devices because the device characteristics can be used directly in computing sequences. Quantum RC is also a promising candidate for application in small
Externí odkaz:
http://arxiv.org/abs/2410.07481
Autor:
Tanamoto, Tetsufumi, Ono, Keiji
Publikováno v:
J. Appl. Phys. 134, 214402 (2023)
Spin qubit systems are one of the promising candidates for quantum computing. The quantum dot (QD) arrays are intensively investigated by many researchers. Because the energy-difference between the up-spin and down-spin states is very small, the dete
Externí odkaz:
http://arxiv.org/abs/2308.15015
Autor:
Tanamoto, Tetsufumi, Aono, Tomosuke
Publikováno v:
Phys. Rev. B106, 125401 (2022)
A quantum dot (QD) system provides various quantum physics of nanostructures. So far, many types of semiconductor QD structures have been fabricated and investigated experimentally and analyzed theoretically. Presently, QD systems have attracted cons
Externí odkaz:
http://arxiv.org/abs/2203.15953
Autor:
Tanamoto, Tetsufumi, Ono, Keiji
Single-electron transistors (SETs) have been extensively used as charge sensors in many areas such as quantum computations. In general, the signals of SETs are smaller than those of complementary metal-oxide semiconductor (CMOS) devices, and many amp
Externí odkaz:
http://arxiv.org/abs/2108.10467
Autor:
Tanamoto, Tetsufumi
Publikováno v:
J. Appl. Phys. 129, 014307 (2021)
All-to-all connections are required in general quantum annealing machines to solve various combinatorial optimization problems. The Lechner, Hauke, and Zoller (LHZ) method, which is used to realize the all-to-all connections, requires many-body inter
Externí odkaz:
http://arxiv.org/abs/2010.05443
Autor:
Tanamoto, Tetsufumi, Ono, Keiji
Publikováno v:
AIP Advances 11, 045004 (2021)
The sizes of commercial transistors are of nanometer order, and there have already been many proposals of spin qubits using conventional complementary metal oxide semiconductor (CMOS) transistors. However, the previously proposed spin qubits require
Externí odkaz:
http://arxiv.org/abs/2009.04620
Autor:
Tanamoto, Tetsufumi, Ueda, Masahito
In ideal quantum circuits, qubits are tacitly assumed to be uniformly fabricated and operated by prescribed signals. In reality, however, we must cope with different control signals to adjust individual qubits, which requires a large overhead of cont
Externí odkaz:
http://arxiv.org/abs/1910.05649
Autor:
Kanao, Taro, Suto, Hirofumi, Mizushima, Koichi, Goto, Hayato, Tanamoto, Tetsufumi, Nagasawa, Tazumi
Publikováno v:
Phys. Rev. Applied 12, 024052 (2019)
We numerically study reservoir computing on a spin-torque oscillator (STO) array, describing the magnetization dynamics of the STO array by a nonlinear oscillator model. The STOs exhibit synchronized oscillation due to coupling by magnetic dipolar fi
Externí odkaz:
http://arxiv.org/abs/1905.07937
The development of quantum annealing machines (QAMs) based on superconducting qubits has progressed greatly in recent years and these machines are now widely used in both academia and commerce. On the other hand, QAMs based on semiconductor nanostruc
Externí odkaz:
http://arxiv.org/abs/1810.06176
We numerically investigate the possibility of using Tunnel field-effect transistor (TFET) in a 32 kHz crystal oscillator circuit to reduce power consumption. A simulation using SPICE (Simulation Program with Integrated Circuit Emphasis) is carried ou
Externí odkaz:
http://arxiv.org/abs/1710.07375