Photon-Mediated Quantum Gate between Two Neutral Atoms in an Optical Cavity [PDF]
Physical Review X, 2018 Quantum logic gates are fundamental building blocks of quantum computers. Their integration into quantum networks requires strong qubit coupling to network channels, as can be realized with neutral atoms and optical photons in cavity quantum ...
Stephan Welte +4 more
doaj +2 more sources
Bounding quantum gate error rate based on reported average fidelity [PDF]
New Journal of Physics, 2015 Remarkable experimental advances in quantum computing are exemplified by recent announcements of impressive average gate fidelities exceeding 99.9% for single-qubit gates and 99% for two-qubit gates.
Yuval R Sanders +2 more
doaj +2 more sources
Unsupervised Quantum Gate Control for Gate-Model Quantum Computers. [PDF]
Sci Rep, 2020 In near-term quantum computers, the operations are realized by unitary quantum gates. The precise and stable working mechanism of quantum gates is essential for the implementation of any complex quantum computations.
Gyongyosi L.
europepmc +2 more sources
Improving the Performance of Deep Quantum Optimization Algorithms with Continuous Gate Sets [PDF]
PRX Quantum, 2020 Variational quantum algorithms are believed to be promising for solving computationally hard problems on noisy intermediate-scale quantum (NISQ) systems.
Nathan Lacroix +12 more
doaj +2 more sources
Quantum gate teleportation between separated qubits in a trapped-ion processor. [PDF]
Science, 2019 Teleporting a trapped-ion quantum gate Gating—controlling the state of one qubit conditioned on the state of another—is a key procedure in all quantum information processors.
Wan Y +11 more
europepmc +3 more sources
Modeling semiconductor spin qubits and their charge noise environment for quantum gate fidelity estimation [PDF]
Physical review B, 2022 The spin of an electron confined in semiconductor quantum dots is currently a promising candidate for quantum bit (qubit) implementations. Taking advantage of existing CMOS integration technologies, such devices can offer a platform for large scale ...
M.Mohamed El +10 more
semanticscholar +1 more source
Sensitivity of quantum gate fidelity to laser phase and intensity noise [PDF]
Physical Review A, 2022 The fidelity of gate operations on neutral atom qubits is often limited by fluctuations of the laser drive. Here, we quantify the sensitivity of quantum gate fidelities to laser phase and intensity noise.
X. Jiang +3 more
semanticscholar +1 more source
Approaching the theoretical limit in quantum gate decomposition [PDF]
Quantum, 2021 In this work we propose a novel numerical approach to decompose general quantum programs in terms of single- and two-qubit quantum gates with a CNOT gate count very close to the current theoretical lower bounds.
P. Rakyta, Z. Zimbor'as
semanticscholar +1 more source
Transverse Mode-Encoded Quantum Gate on a Silicon Photonic Chip. [PDF]
Physical Review Letters, 2021 As an important degree of freedom (d.o.f.) in photonic integrated circuits, the orthogonal transverse mode provides a promising and flexible way to increase communication capability, for both classical and quantum information processing.
Lan-Tian Feng +12 more
semanticscholar +1 more source
Computationally efficient zero-noise extrapolation for quantum-gate-error mitigation [PDF]
Physical Review A, 2021 Zero noise extrapolation (ZNE) is a widely used technique for gate error mitigation on near term quantum computers because it can be implemented in software and does not require knowledge of the quantum computer noise parameters. Traditional ZNE requires
V. Pascuzzi +4 more
semanticscholar +1 more source