Results 71 to 80 of about 180,551 (346)
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
A Qubit Represented by the Oscillator’s Quantum States in Magnetic Resonance Force Microscopy
Magnetochemistry, 2022 We consider magnetic resonance force microscopy (MRFM) in the situation when the frequency of the electron spin resonance matches the fundamental frequency of the cantilever with a ferromagnetic particle attached to its tip.
Panayiotis Christou +1 more
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Invariant-Parameterized Exact Evolution Operator for SU(2) Systems with Time-Dependent Hamiltonian
Entropy, 2023 We report the step-by-step construction of the exact, closed and explicit expression for the evolution operator U(t) of a localized and isolated qubit in an arbitrary time-dependent field, which for concreteness we assume to be a magnetic field.
Hiromichi Nakazato +3 more
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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
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Qubit energy tuner based on single flux quantum circuits
Frontiers in Physics, 2023 A device called the qubit energy tuner (QET), based on single flux quantum (SFQ) circuits, has been proposed for Z control of superconducting qubits. The QET is created by improving flux digital-to-analog converters (flux DACs).
Xiao Geng +10 more
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Entanglement-based single-shot detection of a single magnon with a superconducting qubit [PDF]
Science, 2019 Detecting a single magnetic excitation Quantum-enhanced sensing is one of the near-term applications for the developing field of quantum technologies. A promising approach to quantum sensing relies on entangling a well-controlled system (the sensor) to ...
D. Lachance-Quirion +5 more
semanticscholar +1 more source
Deterministic multi-qubit entanglement in a quantum network [PDF]
Nature, 2020 The generation of high-fidelity distributed multi-qubit entanglement is a challenging task for large-scale quantum communication and computational networks1–4.
Y. Zhong +10 more
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Polylogarithmic-depth controlled-NOT gates without ancilla qubits
Nature CommunicationsControlled operations are fundamental building blocks of quantum algorithms. Decomposing n-control-NOT gates (C n (X)) into arbitrary single-qubit and CNOT gates, is a crucial but non-trivial task.
Baptiste Claudon +5 more
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Entanglement of two qubits interacting with one-mode quantum field
Vestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2015 In the present paper we investigate the dynamics of the system of two twolevel natural or artificial atoms, in which only one atom couples to a thermal one-mode field in finite-Q cavity, since one of them can move around the cavity.
Eugene K Bashkirov, Michail S Mastyugin
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Bifurcation Oscillator as an Advanced Sensor for Quantum State Control
Sensors, 2022 We study bifurcation behavior of a high-quality (high-Q) Josephson oscillator coupled to a superconducting qubit. It is shown that the probability of capture into the state of dynamic equilibrium is sensitive to qubit states.
Dmitrii Pashin +3 more
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