Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Nigg, Simon E."'
Autor:
Nigg, Simon E.
Publikováno v:
Phys. Rev. A 97, 013811 (2018)
High quality factors, strong nonlinearities, and extensive design flexibility make superconducting circuits an ideal platform to investigate synchronization phenomena deep in the quantum regime. Recently~\cite{Loerch-2017}, it was predicted that ener
Externí odkaz:
http://arxiv.org/abs/1706.04945
Autor:
Huembeli, Patrick, Nigg, Simon E.
Publikováno v:
Phys. Rev. A 96, 012313 (2017)
Eigenstate-preserving multi-qubit parity measurements lie at the heart of stabilizer quantum error correction, which is a promising approach to mitigate the problem of decoherence in quantum computers. In this work we explore a high-fidelity, eigenst
Externí odkaz:
http://arxiv.org/abs/1704.08734
Publikováno v:
Phys. Rev. Lett. 118, 243602 (2017)
Classically, the tendency towards spontaneous synchronization is strongest if the natural frequencies of the self-oscillators are as close as possible. We show that this wisdom fails in the deep quantum regime, where the uncertainty of amplitude narr
Externí odkaz:
http://arxiv.org/abs/1703.04595
Publikováno v:
Phys. Rev. Lett. 118, 147701 (2017)
We present a scalable hybrid architecture for the 2D surface code combining superconducting resonators and hole-spin qubits in nanowires with tunable direct Rashba spin-orbit coupling. The back-bone of this architecture is a square lattice of capacit
Externí odkaz:
http://arxiv.org/abs/1612.07292
Publikováno v:
Science Advances Vol. 3, no. 4, e1602273 (2017)
Quantum phenomena have the potential to speed up the solution of hard optimization problems. For example quantum annealing, based on the quantum tunneling effect, has recently been shown to scale exponentially better with system size as compared with
Externí odkaz:
http://arxiv.org/abs/1609.06282
Autor:
Nigg, Simon E., Lunde, Anders Mathias
Publikováno v:
Phys. Rev. B 94, 041407(R) (2016)
We investigate theoretically the phase coherence of electron transport in edge states of the integer quantum Hall effect at filling factor $\nu=2$, in the presence of disorder and inter-edge state Coulomb interaction. Within a Fokker-Planck approach,
Externí odkaz:
http://arxiv.org/abs/1606.08574
Autor:
Lunde, Anders Mathias, Nigg, Simon E.
Publikováno v:
Phys. Rev. B 94, 045409 (2016)
We investigate theoretically the energy exchange between electrons of two co-propagating, out-of-equilibrium edge states with opposite spin polarization in the integer quantum Hall regime. A quantum dot tunnel-coupled to one of the edge states locall
Externí odkaz:
http://arxiv.org/abs/1602.05039
Non local quantum state engineering with the Cooper pair splitter beyond the Coulomb blockade regime
Publikováno v:
Phys. Rev. B 93, 075421 (2016)
A Cooper pair splitter consists of two quantum dots side-coupled to a conventional superconductor. Usually, the quantum dots are assumed to have a large charging energy compared to the superconducting gap, in order to suppress processes other than th
Externí odkaz:
http://arxiv.org/abs/1512.02952
Publikováno v:
Phys. Rev. B 91, 094516 (2015)
Based on the Bardeen Cooper Schrieffer (BCS) theory of superconductivity, the coherent splitting of Cooper pairs from a superconductor to two spatially separated quantum dots has been predicted to generate nonlocal pairs of entangled electrons. In or
Externí odkaz:
http://arxiv.org/abs/1411.3945
Autor:
Nigg, Simon E.
Publikováno v:
Phys. Rev. A 89, 022340 (2014)
We propose the implementation of a deterministic Hadamard gate for logical photonic qubits encoded in superpositions of coherent states of a harmonic oscillator. The proposed scheme builds on a recently introduced set of conditional operations in the
Externí odkaz:
http://arxiv.org/abs/1401.6884