Zobrazeno 1 - 10
of 876
pro vyhledávání: '"Friesen, M."'
Autor:
Holman, Nathan, Dodson, J. P., Edge, L. F., Coppersmith, S. N., Friesen, M., McDermott, R., Eriksson, M. A.
We develop an engineered microwave environment for coupling high Q superconducting resonators to quantum dots using a multilayer fabrication stack for the dot control wiring. Analytic and numerical models are presented to understand how parasitic cap
Externí odkaz:
http://arxiv.org/abs/2006.02514
Publikováno v:
Nature Communications 10, 5641 (2019)
A fundamental design challenge for quantum dot spin qubits is to extend the strength and range of qubit interactions while suppressing their coupling to the environment, since both effects have electrical origins. Key tools include the ability to ret
Externí odkaz:
http://arxiv.org/abs/1905.06094
We study the time-dependent transmission of entanglement entropy through an out-of-equilibrium model interacting device in a quantum transport set-up. The dynamics is performed via the Kadanoff-Baym equations within many-body perturbation theory. The
Externí odkaz:
http://arxiv.org/abs/1103.4054
We use the Kadanoff-Baym equations within the framework of many-body perturbation theory to study the double occupancies in a Hubbard dimer. The double occupancies are obtained from the equations of motion of the single-particle Green's function. Our
Externí odkaz:
http://arxiv.org/abs/1009.2917
We present in detail a method we recently introduced (PRL. 103, 176404 (2009)) to describe finite systems in and out of equilibrium, where the evolution in time is performed via the Kadanoff-Baym Equations (KBE) within Many-Body Perturbation Theory (
Externí odkaz:
http://arxiv.org/abs/1004.3662
Autor:
Simmons, C. B., Thalakulam, Madhu, Rosemeyer, B. M., Van Bael, B. J., Sackmann, E. K., Savage, D. E., Lagally, M. G., Joynt, R., Friesen, M., Coppersmith, S. N., Eriksson, M. A.
Publikováno v:
Nano Lett., 2009, 9 (9), pp 3234-3238
We report integrated charge sensing measurements on a Si/SiGe double quantum dot. The quantum dot is shown to be tunable from a single, large dot to a well-isolated double dot. Charge sensing measurements enable the extraction of the tunnel coupling,
Externí odkaz:
http://arxiv.org/abs/0905.1647
Publikováno v:
Phys. Rev. E 76, 057204 (2007)
Quantum fluctuation of the energy is studied for an ultracold gas of interacting fermions trapped in a three-dimensional potential. Periodic-orbit theory is explored, and energy fluctuations are studied versus particle number for generic regular and
Externí odkaz:
http://arxiv.org/abs/0709.1900
Autor:
Shaji, Nakul, Simmons, C. B., Thalakulam, Madhu, Klein, Levente J., Qin, Hua, Luo, H., Savage, D. E., Lagally, M. G., Rimberg, A. J., Joynt, R., Friesen, M., Blick, R. H., Coppersmith, S. N., Eriksson, M. A.
Publikováno v:
Nature Physics v4, pp540-544 (2008)
Spin blockade occurs when an electron is unable to access an energetically favorable path through a quantum dot due to spin conservation, resulting in a blockade of the current through the dot. Spin blockade is the basis of a number of recent advance
Externí odkaz:
http://arxiv.org/abs/0708.0794
Autor:
Salem-Sugui, Jr., S., Alvarenga, A. D., Friesen, M., Goretta, K. C., Schilling, O. F., Gandra, F. G., Veal, B. W., Paulikas, P.
We measured magnetization, M, of a twin-aligned single crystal of YBa2Cu 3Ox (YBaCuO), with Tc = 91 K, as a function of temperature, T, and magnetic field, H, with H applied along the ab planes. Isothermal M-vs.-H and M-vs.-time curves were obtained
Externí odkaz:
http://arxiv.org/abs/cond-mat/0412331
The value of the dynamic critical exponent $z$ is studied for two-dimensional superconducting, superfluid, and Josephson Junction array systems in zero magnetic field via the Fisher-Fisher-Huse dynamic scaling. We find $z\simeq5.6\pm0.3$, a relativel
Externí odkaz:
http://arxiv.org/abs/cond-mat/9901295