Spin environment of a superconducting qubit in high magnetic fields
Sign Up to like & getrecommendations! Published in 2025 at "Nature Communications"
DOI: 10.1038/s41467-025-65528-y
Abstract: Superconducting qubits equipped with quantum non-demolition readout and active feedback can be used as information engines to probe and manipulate microscopic degrees of freedom, whether intentionally designed or naturally occurring in their environment. In the… read more here.
Keywords: environment; superconducting qubits; superconducting qubit; spin environment ... See more keywords
Synthetic π-flux system in 2D superconducting qubit array with tunable coupling
Sign Up to like & getrecommendations! Published in 2025 at "Applied Physics Letters"
DOI: 10.1063/5.0268772
Abstract: Flat-band systems provide an ideal platform for exploring exotic quantum phenomena, where the strongly suppressed kinetic energy in these flat energy bands suggests the potential for exotic phases driven by geometric structure, disorder, and interactions.… read more here.
Keywords: flux; qubit array; array tunable; superconducting qubit ... See more keywords
High-dynamic-range quantum sensing of magnons and their dynamics using a superconducting qubit
Sign Up to like & getrecommendations! Published in 2024 at "Physical Review Applied"
DOI: 10.1103/6dmm-mnxd
Abstract: Magnons can endow quantum devices with new functionalities. Assessing their potential requires precise characterization of magnon properties. Here, we use a superconducting qubit to probe magnons in a ferrimagnet over a range of about 2000… read more here.
Keywords: range quantum; high dynamic; superconducting qubit; dynamic range ... See more keywords
Longitudinal and Nonlinear Coupling for High-Fidelity Readout of a Superconducting Qubit.
Sign Up to like & getrecommendations! Published in 2024 at "Physical review letters"
DOI: 10.1103/98n9-13y4
Abstract: Despite the significant progress in superconducting quantum computation over the past years, quantum state measurement still lags nearly an order of magnitude behind quantum gate operations in speed and fidelity. The main challenge is that… read more here.
Keywords: high fidelity; nonlinear coupling; fidelity; superconducting qubit ... See more keywords
Digital Coherent Control of a Superconducting Qubit
Sign Up to like & getrecommendations! Published in 2019 at "Physical Review Applied"
DOI: 10.1103/physrevapplied.11.014009
Abstract: High-fidelity gate operations are essential to the realization of a fault-tolerant quantum computer. In addition, the physical resources required to implement gates must scale efficiently with system size. A longstanding goal of the superconducting qubit… read more here.
Keywords: control superconducting; superconducting qubit; coherent control; control ... See more keywords
Signatures of non-Markovianity of a superconducting qubit
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review B"
DOI: 10.1103/physrevb.107.174511
Abstract: We describe temporally correlated noise processes that influence the idle evolution of a superconducting transmon qubit. To model the composite qubit-environment system we use quantum circuit theory, and we show how a circuit Hamiltonian can… read more here.
Keywords: signatures non; state; qubit; superconducting qubit ... See more keywords
Majorana Superconducting Qubit.
Sign Up to like & getrecommendations! Published in 2018 at "Physical review letters"
DOI: 10.1103/physrevlett.121.267002
Abstract: We propose a platform for universal quantum computation that uses conventional s-wave superconducting leads to address a topological qubit stored in spatially separated Majorana bound states in a multiterminal topological superconductor island. Both the manipulation… read more here.
Keywords: qubit; superconducting qubit; majorana superconducting;
Searching for Dark Matter with a Superconducting Qubit.
Sign Up to like & getrecommendations! Published in 2021 at "Physical review letters"
DOI: 10.1103/physrevlett.126.141302
Abstract: Detection mechanisms for low mass bosonic dark matter candidates, such as the axion or hidden photon, leverage potential interactions with electromagnetic fields, whereby the dark matter (of unknown mass) on rare occasion converts into a… read more here.
Keywords: superconducting qubit; hidden photon; dark matter; matter ... See more keywords
SWAP Gate between a Majorana Qubit and a Parity-Protected Superconducting Qubit.
Sign Up to like & getrecommendations! Published in 2022 at "Physical review letters"
DOI: 10.1103/physrevlett.129.177701
Abstract: High fidelity quantum information processing requires a combination of fast gates and long-lived quantum memories. In this Letter, we propose a hybrid architecture, where a parity-protected superconducting qubit is directly coupled to a Majorana qubit,… read more here.
Keywords: qubit; superconducting qubit; protected superconducting; majorana qubit ... See more keywords
Benchmarking the Readout of a Superconducting Qubit for Repeated Measurements.
Sign Up to like & getrecommendations! Published in 2024 at "Physical review letters"
DOI: 10.1103/physrevlett.134.100601
Abstract: Readout of superconducting qubits faces a trade-off between measurement speed and unwanted backaction on the qubit caused by the readout drive, such as T_{1} degradation and leakage out of the computational subspace. The readout is… read more here.
Keywords: qubit; leakage; readout; repeated measurements ... See more keywords
Maxwell-Schrödinger Modeling of a Superconducting Qubit Coupled to a Transmission Line Network
Sign Up to like & getrecommendations! Published in 2024 at "IEEE Journal on Multiscale and Multiphysics Computational Techniques"
DOI: 10.1109/jmmct.2024.3349433
Abstract: In superconducting circuit quantum information technologies, classical microwave pulses are applied to control and measure the qubit states. Currently, the design of these microwave pulses uses simple theoretical or numerical models that do not account… read more here.
Keywords: qubit; maxwell schr; schr dinger; transmission line ... See more keywords