154 citations · 391 across the 11 of their papers we have counts for
11 papers
Efficient heat-energy conversion from a non-thermal Tomonaga-Luttinger liquid
Hikaru Yamazaki, Masashi Uemura, Haruhi Tanaka +5
Energy harvesting is a technique that generates useful work from waste heat. Conventional energy harvesters acting on local thermal equilibrium states are constrained by thermodyna…
Coulomb oscillations of a quantum antidot formed by an airbridged pillar gate in the integer and fractional quantum Hall regime
Tokuro Hata, Hiroki Mitani, Hidetaka Uchiyama +3
Quantum antidots (QAD) are attractive for manipulating quasiparticles in quantum Hall (QH) systems. Here, we form a QAD in the integer and fractional QH regimes at nominal Landau-l…
Static quantum dot on a potential hilltop for generating and analyzing hot electrons in the quantum Hall regime
Ryo Oishi, Yuto Hongu, Tokuro Hata +4
We propose and demonstrate a static quantum dot on a potential hilltop to generate and analyze ballistic hot electrons along a quantum Hall edge channel well above the chemical pot…
Resonant plasmon-assisted tunneling in a double quantum dot coupled to a quantum-Hall plasmon resonator
Chaojing Lin, Ko Futamata, Takafumi Akiho +2
Edge magnetoplasmon is an emergent chiral bosonic mode promising for studying electronic quantum optics. While the plasmon transport has been investigated with various techniques f…
Waveform measurement of charge- and spin-density wave packets in a Tomonaga-Luttinger liquid
Masayuki Hashisaka, Naoaki Hiyama, Takafumi Akiho +2
In contrast to a free electron system, a Tomonaga-Luttinger (TL) liquid in a one dimensional (1D) electron system hosts charge and spin excitations as independent entities. When an…
Detection and control of spin-orbit interactions in a GaAs hole quantum point contact
A. Srinivasan, D. S. Miserev, K. L. Hudson +7
We investigate the relationship between the Zeeman interaction and the inversion asymmetry induced spin orbit interactions (Rashba and Dresselhaus SOIs) in GaAs hole quantum point…
Long-lived binary tunneling spectrum in a quantum-Hall Tomonaga-Luttinger liquid
K. Washio, R. Nakazawa, M. Hashisaka +3
The existence of long-lived non-equilibrium states without showing thermalization, which has previously been demonstrated in time evolution of ultracold atoms, suggests the possibi…
NMR profiling of quantum electron solids in high magnetic fields
L. Tiemann, T. D. Rhone, N. Shibata +1
When the motion of electrons is restricted to a plane under a perpendicular magnetic field B, a variety of quantum phases emerge at low temperatures whose properties are dictated b…
Nanometre-scale nuclear-spin device for quantum information processing
Y. Hirayama, A. Miranowicz, T. Ota +4
We have developed semiconductor point contact devices in which nuclear spins in a nanoscale region are coherently controlled by all-electrical methods. Different from the standard…
Electrically-Controlled Nuclear Spin Polarization and Relaxation by Quantum-Hall states
K. Hashimoto, K. Muraki, T. Saku +1
We investigate interactions between electrons and nuclear spins by using the resistance (Rxx) peak which develops near filling factor n = 2/3 as a probe. By temporarily tuning n to…
Doubly Enhanced Skyrmions in Bilayer Quantum Hall States
N. Kumada, A. Sawada, Z. F. Ezawa +5
By tilting the samples in the magnetic field, we measured and compared the Skyrmion excitations in the bilayer quantum Hall (QH) state at the Landau-level filling factor and…