Articles with "single qubit" as a keyword



Universal Single-Qubit Nonadiabatic Holonomic Quantum Gates on an Optomechanical System

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Published in 2018 at "Annalen der Physik"

DOI: 10.1002/andp.201800239

Abstract: Shan-Shan Chen, Hao Zhang, Xue-Ke Song, Fu-Guo Deng, Ahmed Alsaedi, Tasawar Hayat, Haibo Wang, and Guo-Jian Yang Department of Physics, Applied Optics Beijing Area Major Laboratory, Beijing Normal University, Beijing 100875, China NAAM Research Group,… read more here.

Keywords: mathematics; nonadiabatic holonomic; single qubit; holonomic quantum ... See more keywords

Cyclic Controlled Teleportation by Using a Seven-Qubit Entangled State

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Published in 2018 at "International Journal of Theoretical Physics"

DOI: 10.1007/s10773-018-3895-z

Abstract: We propose a scheme of cyclic controlled teleportation for three arbitrary single-qubit states by using a seven-qubit entangled state. In our scheme, Alice can teleport her single-qubit state of qubit a to Bob, Bob can… read more here.

Keywords: state; single qubit; using seven; controlled teleportation ... See more keywords

Effect of Quantum Noise on Teleportation of an Arbitrary Single-Qubit State via a Triparticle W State

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Published in 2020 at "International Journal of Theoretical Physics"

DOI: 10.1007/s10773-020-04390-8

Abstract: Using a three-particle W state as the quantum channel, we investigate the teleportation of an arbitrary single-qubit state in noisy environments. The influence of different noises on the process of teleporation of an arbitrary single-qubit… read more here.

Keywords: state; arbitrary single; qubit state; single qubit ... See more keywords

Coherence transformations in single qubit systems

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Published in 2017 at "Scientific Reports"

DOI: 10.1038/s41598-017-13687-4

Abstract: We investigate the single qubit transformations under several typical coherence-free operations, such as, incoherent operation (IO), strictly incoherent operation (SIO), physically incoherent operation (PIO), and coherence-preserving operation (CPO). Quantitative connection has been built between IO… read more here.

Keywords: single qubit; coherence transformations; operation; qubit ... See more keywords

Mitigation of microwave crosstalk with parameterized single-qubit gate in superconducting quantum circuits

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Published in 2024 at "Applied Physics Letters"

DOI: 10.1063/5.0200014

Abstract: In superconducting qubit systems, microwave crosstalk among the qubit control lines is a prominent source of errors for gate operations, particularly when implemented simultaneously in a multiqubit system. In this work, we present an experimental… read more here.

Keywords: qubit; qubit gate; microwave crosstalk; single qubit ... See more keywords

Single-Qubit Gates with Errors at the 10^{-7} Level.

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Published in 2024 at "Physical review letters"

DOI: 10.1103/42w2-6ccy

Abstract: We report the achievement of single-qubit gates with sub-part-per-million error rates, in a trapped-ion ^{43}Ca^{+} hyperfine clock qubit. We explore the speed and fidelity trade-off for gate times 4.4≤t_{g}≤35  μs, and benchmark a minimum error per… read more here.

Keywords: qubit; qubit gates; single qubit; errors level ... See more keywords

Experimentally undoing an unknown single-qubit unitary

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Published in 2020 at "Physical Review A"

DOI: 10.1103/physreva.102.012602

Abstract: Undoing a unitary operation, i.e., reversing its action, is the task of canceling the effects of a unitary evolution on a quantum system, and it may be easily achieved when the unitary is known. Given… read more here.

Keywords: undoing unknown; single qubit; qubit unitary; experimentally undoing ... See more keywords

Nonadiabatic single-qubit quantum Otto engine

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Published in 2020 at "Physical Review B"

DOI: 10.1103/physrevb.101.054513

Abstract: According to Clausius formulation of the second law of thermodynamics, for any thermal machine withdrawing heats ${Q}_{1,2}$ from two heat reservoirs at temperatures ${T}_{1,2}$, it holds that ${Q}_{1}/{T}_{1}+{Q}_{2}/{T}_{2}\ensuremath{\le}0$. Combined with the observation that the quantity… read more here.

Keywords: nonadiabatic single; single qubit; otto engine; quantum otto ... See more keywords

Strongly coupled quantum Otto cycle with single qubit bath.

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Published in 2022 at "Physical review. E"

DOI: 10.1103/physreve.106.064133

Abstract: We discuss a model of a closed quantum evolution of two qubits where the joint Hamiltonian is so chosen such that one of the qubits acts as a bath and thermalizes the other qubit which… read more here.

Keywords: otto cycle; single qubit; qubit bath; bath ... See more keywords

Quantum Advantage: A Single Qubit's Experimental Edge in Classical Data Storage.

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Published in 2024 at "Physical review letters"

DOI: 10.1103/physrevlett.133.200201

Abstract: We implement an experiment on a photonic quantum processor establishing efficacy of the elementary quantum system in classical information storage. The advantage is established by considering a class of simple bipartite games played with the… read more here.

Keywords: advantage; advantage single; quantum advantage; single qubit ... See more keywords

Cyclic Hybrid Double-Channel Quantum Communication via Bell-State and GHZ-State in Noisy Environments

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Published in 2019 at "IEEE Access"

DOI: 10.1109/access.2019.2923322

Abstract: In this paper, a scheme for cyclic hybrid double-channel quantum communication is proposed by using the product state of three Bell states and three Greenberger-Horne-Zeilinger (GHZ) states as the quantum channel. It shows that Alice… read more here.

Keywords: quantum communication; single qubit; qubit; state ... See more keywords