Zobrazeno 1 - 10
of 2 120
pro vyhledávání: '"Laird , Edward"'
Autor:
Vigneau, Florian, Fedele, Federico, Chatterjee, Anasua, Reilly, David, Kuemmeth, Ferdinand, Gonzalez-Zalba, Fernando, Laird, Edward, Ares, Natalia
Publikováno v:
Applied Physics Reviews 10, 021305 (2023)
Many important phenomena in quantum devices are dynamic, meaning that they cannot be studied using time-averaged measurements alone. Experiments that measure such transient effects are collectively known as fast readout. One of the most useful techni
Externí odkaz:
http://arxiv.org/abs/2202.10516
Publikováno v:
AVS Quantum Sci. 3, 045603 (2021)
Testing the limits of the applicability of quantum mechanics will deepen our understanding of the universe and may shed light on the interplay between quantum mechanics and gravity. At present there is a wide range of approaches for such macroscopic
Externí odkaz:
http://arxiv.org/abs/2110.15180
Autor:
Mergenthaler, Matthias, Nersisyan, Ani, Patterson, Andrew, Esposito, Martina, Baumgartner, Andreas, Schönenberger, Christian, Briggs, G. Andrew D., Laird, Edward A., Leek, Peter J.
Publikováno v:
Phys. Rev. Applied 15, 064050 (2021)
Hybrid circuit quantum electrodynamics (QED) involves the study of coherent quantum physics in solid state systems via their interactions with superconducting microwave circuits. Here we present an implementation of a hybrid superconducting qubit tha
Externí odkaz:
http://arxiv.org/abs/1904.10132
Publikováno v:
Phys. Rev. X 8, 021052 (2018)
We introduce the `displacemon' electromechanical architecture that comprises a vibrating nanobeam, e.g. a carbon nanotube, flux coupled to a superconducting qubit. This platform can achieve strong and even ultrastrong coupling enabling a variety of q
Externí odkaz:
http://arxiv.org/abs/1710.01920
Publikováno v:
Phys. Rev. A 96, 052104 (2017)
In this article we describe the incoherent and coherent spin and charge dynamics of a single electron quantum dot. We use a stochastic master equation to model the state of the system, as inferred by an observer with access to only the measurement si
Externí odkaz:
http://arxiv.org/abs/1708.06680
Autor:
Ares, Natalia, Pei, Tian, Mavalankar, Aquila, Mergenthaler, Matthias, Warner, Jamie H., Briggs, G. Andrew D., Laird, Edward A.
Publikováno v:
Phys. Rev. Lett. 117, 170801 (2016)
In an optomechanical setup, the coupling between cavity and resonator can be increased by tuning them to the same frequency. We study this interaction between a carbon nanotube resonator and a radio-frequency circuit. In this resonant regime, the vac
Externí odkaz:
http://arxiv.org/abs/1605.05306
Autor:
Mavalankar, Aquila, Pei, Tian, Gauger, Erik M., Warner, Jamie H., Briggs, G. Andrew D., Laird, Edward A.
Publikováno v:
Phys. Rev. B 93, 235428 (2016)
We report microwave-driven photon-assisted tunneling in a suspended carbon nanotube double quantum dot. From the resonant linewidth at a temperature of 13 mK, the charge dephasing time is determined to be 280 +- 30 ps. The linewidth is independent of
Externí odkaz:
http://arxiv.org/abs/1603.06278
Publikováno v:
Phys. Rev. B 90, 195440 (2014)
Resonant manipulation of carbon nanotube valley-spin qubits by an electric field is investigated theoretically. We develop a new analysis of electrically driven spin resonance exploiting fixed physical characteristics of the nanotube: a bend and inho
Externí odkaz:
http://arxiv.org/abs/1408.0951
Publikováno v:
Nature Nanotechnology 8, 565 (2013)
Although electron spins in III-V semiconductor quantum dots have shown great promise as qubits, a major challenge is the unavoidable hyperfine decoherence in these materials. In group IV semiconductors, the dominant nuclear species are spinless, allo
Externí odkaz:
http://arxiv.org/abs/1210.3085
Publikováno v:
Nature Nanotechnology 7, 630 - 634 (2012)
Manipulation and readout of spin qubits in quantum dots made in III-V materials successfully rely on Pauli blockade that forbids transitions between spin-triplet and spin-singlet states. Quantum dots in group IV materials have the advantage of avoidi
Externí odkaz:
http://arxiv.org/abs/1210.2622