Extended native gate sets to unlock the performance of quantum processors
Category: 4. Physics
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Extended native gate sets to unlock the performance of quantum processors
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Dynamically encircling an exceptional point through phase-tracked closed-loop control
Device design
One effective approach for constructing a non-Hermitian MEMS resonator involves engineering a pair of near-degenerate modes with distinct damping rates, as demonstrated in the uniquely designed MEMS disk resonator of this study. The…
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Kelvin probe force microscopy under ambient conditions
Nonnenmacher, M., O’Boyle, M. & Wickramasinghe, H. K. Kelvin probe force microscopy. Appl. Phys. Lett. 58, 2921–2923 (1991). To our knowledge, this article is of the two initial implementations of Kelvin probe force microscopy.
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DFT based investigation of Se doped MgMo6S8-ySey as promising cathode materials for Mg-ion battery application
Structural properties
The Chevrel phase (CP) of MgMo6S8 conforms to triclinic structure with a space group of \(P\overline{1 }\) (No. 2)7. Figure 1(a) and Fig. 1(b) depict the schematic crystal structure of MgMo6S8 and MgMo6S6Se2 respectively…
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Single-shot readout of the nuclear spin of an on-surface atom
Single-shot readout
We investigate individual Ti atoms on the oxygen binding site of an MgO/Ag(100) substrate (see “Methods”), which have been shown to carry an electron spin S = 1/2 that can be ESR driven by an RF voltage at the STM…
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Universal quantum gate set for Gottesman–Kitaev–Preskill logical qubits
GKP code
Here we give some background on GKP codes, highlighting some of the more salient features in our experiment and simulations. For a more comprehensive summary, see the original proposal6 and more recent reviews48,49. The GKP code is a…
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Quantum logic with bosonic error correction
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Structural relaxation of ferroelectric phase in hard sodium lithium niobate solid solutions studied by solid-state NMR
Figure 1 displays the spectra of 23Na MAS NMR for (a) the LNNx system with 0.12 < x < 0.18, (b) the LNN18 aged for 8 h at a temperature T ϵ [500,800] °C and (c) the LNN18 aged for 24 h at 500 °C and at 600 °C for a time t ϵ…
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Néel spin-orbit torque in antiferromagnetic quantum spin and anomalous Hall insulators
Formalism
We extend the Kane-Mele model by including a collinear AFM order which is exchange coupled to the electrons on a 2D honeycomb lattice. As illustrated in Fig. 1, the magnetic moments on the A and B sublattices are oppositely aligned and…
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Efficient sparse state preparation via quantum walks
One of the most powerful optimization methods we utilize is control reduction. The number of CX gates necessary to implement the multi-controlled Rz and Rx gates is proportional to the number of controls on those gates. As mentioned earlier, we…
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