Lina Hultquist

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Martin McBriarty

Pacific Northwest National Laboratory

Nicole Herbots

Arizona State University

Dr. Sovan Kumar Panda

Central Glass and Ceramic Research Institute (CSIR), Calcutta

Rafael Abargues

Universitat de València

Yogesh N

National Institute of Technology, Calicut

Sergey Moiseev

Ulyanovsk State University

Kiran Dasari

University of Illinois at Urbana-Champaign

Pedro de Andres

CSIC (Consejo Superior de Investigaciones Científicas-Spanish National Research Council)

Dr. A. Sharif

Bangladesh University of Engineering and Technology

Mehdi Afshari-Bavil

BeiJing Information and Science University

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Papers by Lina Hultquist

Lågpassfilter för supreledande mikrovågsresonatorer

Vi hypotiserar att kommersiella bandpassfilter slapper igenom fotoner over supraledande aluminium... more Vi hypotiserar att kommersiella bandpassfilter slapper igenom fotoner over supraledande aluminiums bandgapsfrekvens 88 GHz som orsakar forluster i supraledande mikrovagsresonatorer. Vi tillverkade distribuerade lagpassfilter for att oka interna kvalitetsfaktorn Qi for resonatorerna. Filtrens frilagda ledare var av varierande langd och omgavs av Stycast. Matningar utfordes med och utan filter, vilket sedan anpassades till en modell for att erhalla varden pa Qi. Matningarna pavisade att vara filter i vissa fall bidrog till en okning av Qi, maximalt 46%. Vi drar slutsatsen att vara filter, efter ytterligare vidareutveckling, kan bli en viktig komponent for att reducera forluster om resonatorerna av aluminium begransas av kvasipartiklar.

Quantifying Qubit Magic with Gottesman-Kitaev-Preskill Encoding

Quantum resource theories are a powerful framework to characterize and quantify relevant quantum ... more Quantum resource theories are a powerful framework to characterize and quantify relevant quantum phenomena and identify processes that optimize their use for different tasks. Here, we define a resource measure for magic, the sought-after property in most fault-tolerant quantum computers. In contrast to previous literature, our formulation is based on bosonic codes, well-studied tools in continuous-variable quantum computation. Particularly, we use the Gottesman-Kitaev-Preskill code to represent multi-qubit states and consider the resource theory for the Wigner negativity. Our techniques are useful to find resource lower bounds for different applications as state conversion and general unitary synthesis, in which measurements, auxiliary states, and classical feed-forward are allowed. The analytical expression of our magic measure allows us to extend current analysis limited to small dimensions, easily addressing systems of up to 12 qubits.

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