TY - JOUR
T1 - Collective tunneling of a Wigner necklace in carbon nanotubes
AU - Szombathy, Dominik
AU - Werner, Miklós Antal
AU - Moca, Cǎtǎlin Paşcu
AU - Legeza, Örs
AU - Hamo, Assaf
AU - Ilani, Shahal
AU - Zaránd, Gergely
N1 - Publisher Copyright:
© 2024 American Physical Society.
PY - 2024/6/15
Y1 - 2024/6/15
N2 - The collective tunneling of a Wigner necklace - a crystal-like state of a small number of strongly interacting electrons confined to a suspended nanotube and subject to a double-well potential - is theoretically analyzed and compared with experiments in Shapir et al. [Science 364, 870 (2019)0036-807510.1126/science.aat0905]. Density matrix renormalization group computations, exact diagonalization, and instanton theory provide a consistent description of this very strongly interacting system, and show good agreement with experiments. Experimentally extracted and theoretically computed tunneling amplitudes exhibit a scaling collapse. Collective quantum fluctuations renormalize the tunneling, and substantially enhance it as the number of electrons increases.
AB - The collective tunneling of a Wigner necklace - a crystal-like state of a small number of strongly interacting electrons confined to a suspended nanotube and subject to a double-well potential - is theoretically analyzed and compared with experiments in Shapir et al. [Science 364, 870 (2019)0036-807510.1126/science.aat0905]. Density matrix renormalization group computations, exact diagonalization, and instanton theory provide a consistent description of this very strongly interacting system, and show good agreement with experiments. Experimentally extracted and theoretically computed tunneling amplitudes exhibit a scaling collapse. Collective quantum fluctuations renormalize the tunneling, and substantially enhance it as the number of electrons increases.
UR - http://www.scopus.com/inward/record.url?scp=85197283977&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.109.245139
DO - 10.1103/PhysRevB.109.245139
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AN - SCOPUS:85197283977
SN - 2469-9950
VL - 109
JO - Physical Review B
JF - Physical Review B
IS - 24
M1 - 245139
ER -