Searched for: author:"Lüthi, F."
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Lüthi, F. (author)
Quantum computers promise to solve certain problems such as quantum chemistry simulations much more efficiently than their classical counterparts. Although it is still unclear what material system will ultimately host large-scale quantum computers, solid-state systems are promising candidates due to their inherent scalability and advanced...
doctoral thesis 2019
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Lüthi, F. (author), Stavenga, T. (author), Bruno, A. (author), Dickel, C. (author), Langford, N.K. (author), Rol, M.A. (author), Jespersen, T. S. (author), Nygård, J. (author), Krogstrup, P. (author), di Carlo, L. (author)
We present an experimental study of flux- and gate-tunable nanowire transmons with state-of-the-art relaxation time allowing quantitative extraction of flux and charge noise coupling to the Josephson energy. We evidence coherence sweet spots for charge, tuned by voltage on a proximal side gate, where first order sensitivity to switching two...
journal article 2018
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Langford, N.K. (author), Sagastizabal, R.E. (author), Kounalakis, M. (author), Dickel, C. (author), Bruno, A. (author), Lüthi, F. (author), Thoen, D.J. (author), Endo, A. (author), di Carlo, L. (author)
The quantum Rabi model describing the fundamental interaction between light and matter is a cornerstone of quantum physics. It predicts exotic phenomena like quantum phase transitions and ground-state entanglement in ultrastrong and deep-strong coupling regimes, where coupling strengths are comparable to or larger than subsystem energies....
journal article 2017
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Rol, M.A. (author), Bultink, C.C. (author), O'Brien, T.E. (author), De Jong, S. R. (author), Theis, L. S. (author), Fu, X. (author), Lüthi, F. (author), Vermeulen, R.F.L. (author), de Sterke, J.C. (author), Bruno, A. (author), Deurloo, D. (author), Schouten, R.N. (author), Wilhelm, FK (author), di Carlo, L. (author)
We present a tuneup protocol for qubit gates with tenfold speedup over traditional methods reliant on qubit initialization by energy relaxation. This speedup is achieved by constructing a cost function for Nelder-Mead optimization from real-time correlation of nondemolition measurements interleaving gate operations without pause. Applying the...
journal article 2017
Searched for: author:"Lüthi, F."
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