Results 61 to 70 of about 248,456 (339)
Science, 2021 A reconfigurable spin ice Spin ices, magnetic systems in which local spins respect the so-called ice rules, can occur in natural materials or be engineered in patterned arrays. King et al . used superconducting qubits to implement a two-dimensional artificial spin ice. By changing the strength and ratio of
Andrew D. King +4 more
openaire +5 more sources
Three-electron spin qubits [PDF]
, 2016 The goal of this article is to review the progress of three-electron spin qubits from their inception to the state of the art. We direct the main focus towards the resonant exchange (RX) qubit and the exchange-only qubit, but we also discuss other qubit implementations using three electron spins.
arxiv +1 more source
Superconducting qubit network with controllable nearest neighbor coupling [PDF]
New J. Phys. 7 (2005) 178, 2005 We investigate the design and functionality of a network of loop-shaped charge qubits with switchable nearest-neighbor coupling. The qubit coupling is achieved by placing large Josephson junctions at the intersections of the qubit loops and selectively applying bias currents.
arxiv +1 more source
Readout of Majorana qubits [PDF]
Physical Review Research, 2020 Schemes for topological quantum computation with Majorana bound states rely heavily on the ability to projectively measure products of Majorana operators. Here, we employ Markovian quantum measurement theory, including the readout device, to analyze such measurements.
Jacob F. Steiner, Felix von Oppen
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Loss-tolerant transmission of multiphoton-qubit information via hybrid entanglement [PDF]
Phys. Rev. A 102, 012424 (2020), 2020 It was shown that using multiphoton qubits, a nearly deterministic Bell-state measurement can be performed with linear optics and on-off photodetectors [Phys. Rev. Lett. 114, 113603 (2015)]. However, multiphoton qubits are generally more fragile than single-photon qubits under a lossy environment.
arxiv +1 more source
Entropy, 2019 The evolution of an open system is usually associated with the interaction of the system with an environment. A new method to study the open-type system evolution of a qubit (two-level atom) state is established. This evolution is determined by a unitary
Julio A. López-Saldívar +3 more
doaj +1 more source
Nature Communications, 2023 AbstractTopological phases of spin liquids with constrained disorder can host a kinetics of fractionalized excitations. However, spin-liquid phases with distinct kinetic regimes have proven difficult to observe experimentally. Here we present a realization of kagome spin ice in the superconducting qubits of a quantum annealer, and use it to demonstrate
Alejandro Lopez-Bezanilla +5 more
openaire +4 more sources
Enhanced energy relaxation process of quantum memory coupled with a superconducting qubit
, 2012 For quantum information processing, each physical system has different advantage for the implementation and so hybrid systems to benefit from several systems would be able to provide a promising approach. One of the common hybrid approach is to combine a
H. Metcalf +3 more
core +1 more source
Reading a Single Qubit System Using Weak Measurement with Variable Strength [PDF]
, 2016 Acquiring information about an unknown qubit in a superposition of two states is essential in any computation process. Quantum measurement, or sharp measurement, is usually used to read the information contents of that unknown qubit system.
Younes, Ahmed
core +2 more sources