Search Results - "Hays, Max"
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High-Fidelity, Frequency-Flexible Two-Qubit Fluxonium Gates with a Transmon Coupler
Published in Physical review. X (25-09-2023)“…We propose and demonstrate an architecture for fluxonium-fluxonium two-qubit gates mediated by transmon couplers (FTF, for fluxonium-transmon-fluxonium)…”
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2
Dephasing in Fluxonium Qubits from Coherent Quantum Phase Slips
Published in PRX quantum (27-08-2024)“…Phase slips occur across all Josephson junctions (JJs) at a rate that increases with the impedance of the junction. In superconducting qubits composed of…”
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3
Qubits inside junctions get joined up
Published in Nature physics (03-10-2024)“…Semiconductor spin qubits are usually highly localized, which makes it difficult to engineer long-range interactions. Two recent experiments demonstrate that…”
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4
Probing entanglement in a 2D hard-core Bose–Hubbard lattice
Published in Nature (London) (16-05-2024)“…Entanglement and its propagation are central to understanding many physical properties of quantum systems 1 – 3 . Notably, within closed quantum many-body…”
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5
A synthetic magnetic vector potential in a 2D superconducting qubit array
Published in Nature physics (30-10-2024)Get full text
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6
Realization of an Andreev Spin Qubit: Exploring the Sub-Gap Structure of Josephson Nanowires Using Circuit QED
Published 01-01-2020“…A weak link between two superconductors hosts discrete, fermionic modes known as Andreev levels. They govern the physics of the weak link on the microscopic…”
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Dissertation -
7
Evolution of 1/f Flux Noise in Superconducting Qubits with Weak Magnetic Fields
Published in Physical review letters (02-06-2023)“…The microscopic description of 1/f magnetic flux noise in superconducting circuits has remained an open question for several decades despite extensive…”
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8
High-Fidelity, Frequency-Flexible Two-Qubit Fluxonium Gates with a Transmon Coupler
Published in Physical review. X (01-09-2023)“…Not provided…”
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9
Exact and approximate fluxonium array modes
Published 26-06-2024“…We present an exact solution for the linearized junction array modes of the superconducting qubit fluxonium in the absence of array disorder. This solution…”
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10
Decoherence in Andreev spin qubits
Published 01-03-2024“…We theoretically study the dephasing of an Andreev spin qubit (ASQ) due to electric and magnetic noise. Using a tight-binding model, we calculate the Andreev…”
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11
Remote Entangling Gates for Spin Qubits in Quantum Dots using an Offset-Charge-Sensitive Transmon Coupler
Published 13-09-2024“…We propose a method to realize microwave-activated CZ gates between two remote spin qubits in quantum dots using an offset-charge-sensitive transmon coupler…”
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12
Dephasing in Fluxonium Qubits from Coherent Quantum Phase Slips
Published 04-10-2024“…PRX Quantum 5, 030341 (2024) Phase slips occur across all Josephson junctions (JJs) at a rate that increases with the impedance of the junction. In…”
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13
Deterministic remote entanglement using a chiral quantum interconnect
Published 09-08-2024“…Quantum interconnects facilitate entanglement distribution between non-local computational nodes. For superconducting processors, microwave photons are a…”
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14
Suppressing Counter-Rotating Errors for Fast Single-Qubit Gates with Fluxonium
Published 12-06-2024“…Qubit decoherence unavoidably degrades the fidelity of quantum logic gates. Accordingly, realizing gates that are as fast as possible is a guiding principle…”
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15
Qubit-State Purity Oscillations from Anisotropic Transverse Noise
Published 18-09-2024“…We explore the dynamics of qubit-state purity in the presence of transverse noise that is anisotropically distributed in the Bloch-sphere XY plane. We perform…”
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16
Implementing a synthetic magnetic vector potential in a 2D superconducting qubit array
Published 09-09-2024“…Superconducting quantum processors are a compelling platform for analog quantum simulation due to the precision control, fast operation, and site-resolved…”
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17
Spin Coherent Manipulation in Josephson Weak Links
Published 13-12-2020“…Phys. Rev. Research 3, 022012 (2021) Novel designs of Josephson weak links based on semiconducting nanowires combined with circuit QED techniques have enabled…”
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18
Superfluid Stiffness and Flat-Band Superconductivity in Magic-Angle Graphene Probed by cQED
Published 19-06-2024“…The physics of superconductivity in magic-angle twisted bilayer graphene (MATBG) is a topic of keen interest in moir\'e systems research, and it may provide…”
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19
Distinguishing parity-switching mechanisms in a superconducting qubit
Published 15-04-2022“…Single-charge tunneling is a decoherence mechanism affecting superconducting qubits, yet the origin of excess quasiparticle excitations (QPs) responsible for…”
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Synchronous Detection of Cosmic Rays and Correlated Errors in Superconducting Qubit Arrays
Published 05-02-2024“…Quantum information processing at scale will require sufficiently stable and long-lived qubits, likely enabled by error-correction codes. Several recent…”
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