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We consider Coulomb blockade oscillations of thermoelectric coefficients of a single electron transistor based on a quantum dot strongly coupled to one of the leads. Analytic expression for the thermopower as a function of temperature $T$…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 A. V. Andreev , K. A. Matveev

We study transport properties and the charge quantization phenomenon in a small metallic island connected to the leads through two quantum point contacts (QPCs). The linear conductance is calculated perturbatively with respect to weak…

Mesoscale and Nanoscale Physics · Physics 2017-10-05 Edvin G. Idrisov , Ivan P. Levkivskyi , Eugene V. Sukhorukov

We study Coulomb blockade effects in the thermodynamic quantities of a weakly disordered metallic grain coupled to a metallic lead by a tunneling contact with a large conductance $g_T$. We consider the case of broken time-reversal symmetry…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 I. S. Beloborodov , A. V. Andreev

We consider mesoscopic fluctuations of the Coulomb blockade oscillations in a disordered metallic grain in an external magnetic field coupled to a metallic lead by a tunneling contact with a large conductance $g_T$ and capacitively coupled…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 I. S. Beloborodov , A. V. Andreev

We present a theory of Coulomb blockade oscillations in tunneling through a pair of quantum dots connected by a tunable tunneling junction. The positions and amplitudes of peaks in the linear conductance are directly related, respectively,…

Condensed Matter · Physics 2009-10-28 K. A. Matveev , L. I. Glazman , H. U. Baranger

We study the transport through a quantum dot coupled to two leads by single-mode point contacts. The linear conductance is calculated analytically as a function of a gate voltage and temperature T in the case when transmission coefficients…

Condensed Matter · Physics 2009-10-28 A. Furusaki , K. A. Matveev

We develop the two-instanton approximation to the current-voltage characteristic of a single electron transistor within the Ambegaokar-Eckern-Sch\"on model. We determine the temperature and gate voltage dependence of the Coulomb blockade…

Mesoscale and Nanoscale Physics · Physics 2017-11-15 I. S. Burmistrov

We report the observation of Coulomb blockade in a quantum dot contacted by two quantum point contacts each with a single fully-transmitting mode, a system previously thought to be well described without invoking Coulomb interactions. At…

Mesoscale and Nanoscale Physics · Physics 2012-04-06 S. Amasha , I. G. Rau , M. Grobis , R. M. Potok , H. Shtrikman , D. Goldhaber-Gordon

We find an analytical expression for the conductance of a single electron transistor in the regime when temperature, level spacing, and charging energy of a grain are all of the same order. We consider the model of equidistant energy levels…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Serguei Vorojtsov

We observe and comprehend the dynamical Coulomb blockade suppression of the electrical conductance across an electronic quantum channel submitted to a temperature difference. A broadly tunable, spin-polarized Ga(Al)As quantum channel is…

Mesoscale and Nanoscale Physics · Physics 2021-05-26 H. Duprez , F. Pierre , E. Sivre , A. Aassime , F. D. Parmentier , A. Cavanna , A. Ouerghi , U. Gennser , I. Safi , C. Mora , A. Anthore

We study the Coulomb blockade of tunneling through a double quantum dot. The temperature dependence of the linear conductance is strongly affected by the inter-dot tunneling. As the tunneling grows, a crossover from temperature-independent…

Condensed Matter · Physics 2009-10-28 K. A. Matveev , L. I. Glazman , H. U. Baranger

We develop a theory of the conductance of a quantum dot connected to two leads by single-mode quantum point contacts. If the contacts are in the regime of perfect transmission, the conductance shows no Coulomb blockade oscillations as a…

Condensed Matter · Physics 2009-10-28 A. Furusaki , K. A. Matveev

We study Coulomb blockade oscillations of thermoelectric coefficients of a single electron transistor based on a quantum dot strongly coupled to one of the leads by a quantum point contact. At temperatures below the charging energy E_C the…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 K. A. Matveev , A. V. Andreev

Electrons in closed systems can exhibit Coulomb blockade (CB) oscillations due to charge quantization. Here, we report CB oscillations in aluminum superconducting islands on InAs nanowires in the open regime. The Al island is connected to…

Mesoscale and Nanoscale Physics · Physics 2025-05-14 Huading Song , Zhaoyu Wang , Dong Pan , Jiaye Xu , Yuqing Wang , Zhan Cao , Dong E. Liu , Ke He , Runan Shang , Jianhua Zhao , Hao Zhang

We study the effects of Coulomb interaction and inter-grain quantum tunnelling in an array of metallic grains using the phase-functional approach for temperatures $T$ well below the charging energy $E_{c}$ of individual grains yet large…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 V. Tripathi , M. Turlakov , Y. L. Loh

We study the equilibrium properties of a quantum dot connected to a bulk lead by a single-mode quantum point contact. The ground state energy and other thermodynamic characteristics of the grain show periodic dependence on the gate voltage…

Condensed Matter · Physics 2009-10-22 K. A. Matveev

We discuss the calculation of the linear conductance through a Coulomb-blockade quantum dot in the presence of interactions beyond the charging energy. In the limit where the temperature is large compared with a typical tunneling width, we…

Mesoscale and Nanoscale Physics · Physics 2009-11-07 Y. Alhassid , T. Rupp , A. Kaminski , L. I. Glazman

We report measurements on single-electron pumps, consisting of two metallic islands formed by three tunnel junctions in series. We focus on the linear-response conductance as a function of gate voltage and temperature of three samples with…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 B. Limbach , P. vom Stein , C. Wallisser , R. Schaefer

We report measurements of the Coulomb-blockade current in resistively isolated (R_{Isol} >> h/e^{2}) tunnel junctions for the temperature range 60mK $We report measurements of the Coulomb-blockade current in resistively isolated…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Wei Zheng , Jonathan R. Friedman , D. V. Averin , Siyuan Han , J. E. Lukens

We study the dissipation in a system consisting of a small metallic island coupled to a gate electrode and to a massive reservoir via single tunneling junction. The dissipation of energy is caused by a slowly oscillating gate voltage. We…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Ya. I. Rodionov , I. S. Burmistrov , A. S. Ioselevich
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