Transmission and reflection of charge-density wave packets in a quantum Hall edge controlled by a metal gate

Masahiro Matsuura; Takaaki Mano; Takeshi Noda; Naokazu Shibata; Masahiro Hotta; Go Yusa

doi:10.1063/1.5009373

Transmission and reflection of charge-density wave packets in a quantum Hall edge controlled by a metal gate

Masahiro Matsuura, Takaaki Mano, Takeshi Noda, Naokazu Shibata, Masahiro Hotta, Go Yusa

SCI - Physics

Research output: Contribution to journal › Article › peer-review

2 Citations (Scopus)

Abstract

Quantum energy teleportation (QET) is a proposed protocol related to quantum vacuum. The edge channels in a quantum Hall system are well suited for the experimental verification of QET. For this purpose, we examine a charge-density wave packet excited and detected by capacitively coupled front gate electrodes. We observe the waveform of the charge packet, which is proportional to the time derivative of the applied square voltage wave. Further, we study the transmission and reflection behaviors of the charge-density wave packet by applying a voltage to another front gate electrode to control the path of the edge state. We show that the threshold voltages where the dominant direction is switched in either transmission or reflection for dense and sparse wave packets are different from the threshold voltage where the current stops flowing in an equilibrium state.

Original language	English
Article number	063104
Journal	Applied Physics Letters
Volume	112
Issue number	6
DOIs	https://doi.org/10.1063/1.5009373
Publication status	Published - 2018 Feb 5

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.5009373

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title = "Transmission and reflection of charge-density wave packets in a quantum Hall edge controlled by a metal gate",

abstract = "Quantum energy teleportation (QET) is a proposed protocol related to quantum vacuum. The edge channels in a quantum Hall system are well suited for the experimental verification of QET. For this purpose, we examine a charge-density wave packet excited and detected by capacitively coupled front gate electrodes. We observe the waveform of the charge packet, which is proportional to the time derivative of the applied square voltage wave. Further, we study the transmission and reflection behaviors of the charge-density wave packet by applying a voltage to another front gate electrode to control the path of the edge state. We show that the threshold voltages where the dominant direction is switched in either transmission or reflection for dense and sparse wave packets are different from the threshold voltage where the current stops flowing in an equilibrium state.",

author = "Masahiro Matsuura and Takaaki Mano and Takeshi Noda and Naokazu Shibata and Masahiro Hotta and Go Yusa",

note = "Funding Information: The authors are grateful for discussions with T. Fujisawa, K. Kobayashi, T. Arakawa, J. N. Moore, R. Schutzhold, and W. G. Unruh. This work was supported by the Asahi Glass Foundation; a Grant-in-Aid for Scientific Research [Nos. 17H01037 and 16K05311 (M.H.)] from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT), Japan; and the “Nanotechnology Platform” of MEXT at the Center for Integrated Nanotechnology Support, Tohoku University. Publisher Copyright: {\textcopyright} 2018 Author(s).",

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doi = "10.1063/1.5009373",

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AU - Matsuura, Masahiro

AU - Mano, Takaaki

AU - Noda, Takeshi

AU - Shibata, Naokazu

AU - Hotta, Masahiro

AU - Yusa, Go

N1 - Funding Information: The authors are grateful for discussions with T. Fujisawa, K. Kobayashi, T. Arakawa, J. N. Moore, R. Schutzhold, and W. G. Unruh. This work was supported by the Asahi Glass Foundation; a Grant-in-Aid for Scientific Research [Nos. 17H01037 and 16K05311 (M.H.)] from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT), Japan; and the “Nanotechnology Platform” of MEXT at the Center for Integrated Nanotechnology Support, Tohoku University. Publisher Copyright: © 2018 Author(s).

PY - 2018/2/5

Y1 - 2018/2/5

N2 - Quantum energy teleportation (QET) is a proposed protocol related to quantum vacuum. The edge channels in a quantum Hall system are well suited for the experimental verification of QET. For this purpose, we examine a charge-density wave packet excited and detected by capacitively coupled front gate electrodes. We observe the waveform of the charge packet, which is proportional to the time derivative of the applied square voltage wave. Further, we study the transmission and reflection behaviors of the charge-density wave packet by applying a voltage to another front gate electrode to control the path of the edge state. We show that the threshold voltages where the dominant direction is switched in either transmission or reflection for dense and sparse wave packets are different from the threshold voltage where the current stops flowing in an equilibrium state.

AB - Quantum energy teleportation (QET) is a proposed protocol related to quantum vacuum. The edge channels in a quantum Hall system are well suited for the experimental verification of QET. For this purpose, we examine a charge-density wave packet excited and detected by capacitively coupled front gate electrodes. We observe the waveform of the charge packet, which is proportional to the time derivative of the applied square voltage wave. Further, we study the transmission and reflection behaviors of the charge-density wave packet by applying a voltage to another front gate electrode to control the path of the edge state. We show that the threshold voltages where the dominant direction is switched in either transmission or reflection for dense and sparse wave packets are different from the threshold voltage where the current stops flowing in an equilibrium state.

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Transmission and reflection of charge-density wave packets in a quantum Hall edge controlled by a metal gate

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