Zobrazeno 1 - 10
of 856
pro vyhledávání: '"Marthaler, M."'
In this letter we present an efficient gap-independent cooling scheme for a quantum annealer that benefits from finite temperatures. We choose a system based on superconducting flux qubits as a prominent example of current quantum annealing platforms
Externí odkaz:
http://arxiv.org/abs/1808.09873
Publikováno v:
Phys. Rev. B 91, 184515 (2015)
We study a model which can describe a superconducting single electron transistor (SSET) or a double quantum dot coupled to transmission-line oscillator. In both cases the degree of freedom is given by a charged particle, which couples strongly to the
Externí odkaz:
http://arxiv.org/abs/1503.01597
Autor:
Zimmer, J., Vogt, N., Fiebig, A., Syzranov, S. V., Lukashenko, A., Schäfer, R., Rotzinger, H., Shnirman, A., Marthaler, M., Ustinov, A. V.
We present measurements of the temperature-dependent conductance for series arrays of small-capacitance SQUIDs. At low bias voltages, the arrays exhibit a strong Coulomb blockade, which we study in detail as a function of temperature and Josephson en
Externí odkaz:
http://arxiv.org/abs/1306.6304
Publikováno v:
Phys. Rev. A 87 (6), 7 (2013)
We show that the rate of switching between the vibrational states of a modulated nonlinear oscillator is characterized by a quantum critical temperature $T_c\propto\hbar^2$. The rate is independent of $T$ for $T
Externí odkaz:
http://arxiv.org/abs/1212.2678
Publikováno v:
Phys. Rev. Lett. 109. 090401 (2012)
We describe a new mechanism of tunneling between period-two vibrational states of a weakly nonlinear parametrically modulated oscillator. The tunneling results from resonant transitions induced by the fast oscillating terms conventionally disregarded
Externí odkaz:
http://arxiv.org/abs/1203.4803
Publikováno v:
Physical Review B 86, 075420 (2012)
We propose a setup for a quantitative test of the quantum fluctuation theorem. It consists of a quantum conductor, driven by an external voltage source, and a classical inductor-capacitor circuit. The work done on the system by the voltage source can
Externí odkaz:
http://arxiv.org/abs/1202.1700
We investigate qubit lasing in the strong coupling limit. The qubit is given by a Cooper-pair box, and population inversion is established by an additional third state, which can be addressed via quasiparticle tunneling. The coupling strength between
Externí odkaz:
http://arxiv.org/abs/1111.7184
Autor:
Küng, B., Rössler, C., Beck, M., Marthaler, M., Golubev, D. S., Utsumi, Y., Ihn, T., Ensslin, K.
Publikováno v:
Physical Review X 2, 011001 (2012)
We present a low-temperature experimental test of the fluctuation theorem for electron transport through a double quantum dot. The rare entropy-consuming system trajectories are detected in the form of single charges flowing against the source-drain
Externí odkaz:
http://arxiv.org/abs/1107.4240
Publikováno v:
Physical Review B 84, 075323 (2011)
We study single-electron transport through a double quantum dot (DQD) monitored by a capacitively coupled quantum point-contact (QPC) electrometer. We derive the full counting statistics for the coupled DQD - QPC system and obtain the joint probabili
Externí odkaz:
http://arxiv.org/abs/1105.3134
Autor:
Shirazi RG; HQS Quantum Simulations GmbH, Rintheimer Str. 23, 76131 Karlsruhe, Germany., Rybkin VV; HQS Quantum Simulations GmbH, Rintheimer Str. 23, 76131 Karlsruhe, Germany., Marthaler M; HQS Quantum Simulations GmbH, Rintheimer Str. 23, 76131 Karlsruhe, Germany., Golubev DS; HQS Quantum Simulations GmbH, Rintheimer Str. 23, 76131 Karlsruhe, Germany.
Publikováno v:
The Journal of chemical physics [J Chem Phys] 2024 Sep 21; Vol. 161 (11).
