Zobrazeno 1 - 10
of 28
pro vyhledávání: '"Abdumalikov Jr, A. A."'
Publikováno v:
Phys. Rev. A 91, 043846 (2015)
In the circuit quantum electrodynamics architecture, both the resonance frequency and the coupling of superconducting qubits to microwave field modes can be controlled via external electric and magnetic fields to explore qubit -- photon dynamics in a
Externí odkaz:
http://arxiv.org/abs/1502.03692
Publikováno v:
Nature Communications 5, Article number: 5186 (2014)
An individual excited two level system decays to its ground state by emitting a single photon in a process known as spontaneous emission. In accordance with quantum theory the probability of detecting the emitted photon decreases exponentially with t
Externí odkaz:
http://arxiv.org/abs/1412.2392
Autor:
Pechal, M., Huthmacher, L., Eichler, C., Zeytinoglu, S., Abdumalikov Jr., A. A., Berger, S., Wallraff, A., Filipp, S.
Publikováno v:
Physical Review X 4, 041010 (2014)
Large-scale quantum information processors or quantum communication networks will require reliable exchange of information between spatially separated nodes. The links connecting these nodes can be established using traveling photons that need to be
Externí odkaz:
http://arxiv.org/abs/1308.4094
Autor:
Berger, S., Pechal, M., Abdumalikov Jr., A. A., Eichler, C., Steffen, L., Fedorov, A., Wallraff, A., Filipp, S.
Publikováno v:
Physical Review A, 060303(R) (2013)
We make use of a superconducting qubit to study the effects of noise on adiabatic geometric phases. The state of the system, an effective spin one-half particle, is adiabatically guided along a closed path in parameter space and thereby acquires a ge
Externí odkaz:
http://arxiv.org/abs/1302.3305
Autor:
Berger, S., Pechal, M., Pugnetti, S., Abdumalikov Jr, A. A., Steffen, L., Fedorov, A., Wallraff, A., Filipp, S.
Publikováno v:
Physical Review B 85, 220502(R) (2012)
Geometric phases, which accompany the evolution of a quantum system and depend only on its trajectory in state space, are commonly studied in two-level systems. Here, however, we study the adiabatic geometric phase in a weakly anharmonic and strongly
Externí odkaz:
http://arxiv.org/abs/1204.1278
Autor:
Mlynek, Jonas A., Abdumalikov Jr, Abdufarrukh A., Fink, Johannes M., Steffen, Lars, Baur, Matthias, Lang, Christian, van Loo, Arjan F., Wallraff, Andreas
Publikováno v:
Phys. Rev. A 86, 053838 (2012)
Nonlinearity and entanglement are two important properties by which physical systems can be identified as non-classical. We study the dynamics of the resonant interaction of up to N=3 two-level systems and a single mode of the electromagnetic field s
Externí odkaz:
http://arxiv.org/abs/1202.5191
Autor:
Pechal, M., Berger, S., Abdumalikov Jr., A. A., Fink, J. M., Mlynek, J. A., Steffen, L., Wallraff, A., Filipp, S.
Publikováno v:
Phys. Rev. Lett. 108, 170401 (2012)
Steering a quantum harmonic oscillator state along cyclic trajectories leads to a path-dependent geometric phase. Here we describe an experiment observing this geometric phase in an electronic harmonic oscillator. We use a superconducting qubit as a
Externí odkaz:
http://arxiv.org/abs/1109.1157
Autor:
Lang, C., Bozyigit, D., Eichler, C., Steffen, L., Fink, J. M., Abdumalikov Jr., A. A., Baur, M., Filipp, S., da Silva, M. P., Blais, A., Wallraff, A.
Publikováno v:
Phys. Rev. Lett. 106, 243601 (2011)
Creating a train of single photons and monitoring its propagation and interaction is challenging in most physical systems, as photons generally interact very weakly with other systems. However, when confining microwave frequency photons in a transmis
Externí odkaz:
http://arxiv.org/abs/1102.0461
Autor:
Pashkin, Yu. A., Im, H., Leppäkangas, J., Li, T. F., Astafiev, O., Abdumalikov Jr., A. A., Thuneberg, E., Tsai, J. S.
Publikováno v:
Phys. Rev. B 83, 020502(R) (2011)
We have investigated charge transport in ultrasmall superconducting single and double Josephson junctions coupled to resonant modes of the electromagnetic environment. We observe pronounced current peaks in the transport characteristics of both types
Externí odkaz:
http://arxiv.org/abs/1010.3617
Autor:
Astafiev, O., Abdumalikov Jr., A. A., Zagoskin, A. M., Pashkin, Yu. A., Nakamura, Y., Tsai, J. S.
We report amplification of electromagnetic waves by a single artificial atom in open 1D space. Our three-level artificial atom -- a superconducting quantum circuit -- coupled to a transmission line presents an analog of a natural atom in open space.
Externí odkaz:
http://arxiv.org/abs/1004.3864