Coulomb Blockade of a Nearly Open Majorana Island
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Coulomb Blockade of a Nearly Open Majorana Island. / Pikulin, Dmitry; Flensberg, Karsten; Glazman, Leonid I.; Houzet, Manuel; Lutchyn, Roman M.
I: Physical Review Letters, Bind 122, Nr. 1, 016801, 03.01.2019.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Coulomb Blockade of a Nearly Open Majorana Island
AU - Pikulin, Dmitry
AU - Flensberg, Karsten
AU - Glazman, Leonid I.
AU - Houzet, Manuel
AU - Lutchyn, Roman M.
N1 - [Qdev]
PY - 2019/1/3
Y1 - 2019/1/3
N2 - We consider the ground-state energy and the spectrum of the low-energy excitations of a Majorana island formed of topological superconductors connected by a single-mode junction of arbitrary transmission. Coulomb blockade results in e-periodic modulation of the energies with the gate-induced charge. We find the amplitude of modulation as a function of reflection coefficient R. The amplitude scales as R in the limit R→0. At larger R, the dependence of the amplitude on the Josephson and charging energies is similar to that of a conventional-superconductor Cooper-pair box. The crossover value of R is small and depends on the ratio of the charging energy to superconducting gap.
AB - We consider the ground-state energy and the spectrum of the low-energy excitations of a Majorana island formed of topological superconductors connected by a single-mode junction of arbitrary transmission. Coulomb blockade results in e-periodic modulation of the energies with the gate-induced charge. We find the amplitude of modulation as a function of reflection coefficient R. The amplitude scales as R in the limit R→0. At larger R, the dependence of the amplitude on the Josephson and charging energies is similar to that of a conventional-superconductor Cooper-pair box. The crossover value of R is small and depends on the ratio of the charging energy to superconducting gap.
U2 - 10.1103/PhysRevLett.122.016801
DO - 10.1103/PhysRevLett.122.016801
M3 - Journal article
C2 - 31012695
AN - SCOPUS:85059815846
VL - 122
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 1
M1 - 016801
ER -
ID: 216923319