Results 71 to 80 of about 311,633 (389)
Logical-qubit operations in an error-detecting surface code [PDF]
Nature Physics, 2021 Future fault-tolerant quantum computers will require storing and processing quantum data in logical qubits. Here we realize a suite of logical operations on a distance-2 surface code qubit built from seven physical qubits and stabilized using repeated ...
J. Marques +12 more
semanticscholar +1 more source
On the qubit routing problem [PDF]
arXiv: Quantum Physics, 2019 We introduce a new architecture-agnostic methodology for mapping abstract quantum circuits to realistic quantum computing devices with restricted qubit connectivity, as implemented by Cambridge Quantum Computing's tket compiler. We present empirical results showing the effectiveness of this method in terms of reducing two-qubit gate depth and two-qubit
Cowtan, Alexander +5 more
openaire +7 more sources
Microwaves in Quantum Computing
IEEE Journal of Microwaves, 2021 Quantum information processing systems rely on a broad range of microwave technologies and have spurred development of microwave devices and methods in new operating regimes.
Joseph C. Bardin +2 more
doaj +1 more source
Stochastic path integral formalism for continuous quantum measurement [PDF]
, 2015 We generalize and extend the stochastic path integral formalism and action principle for continuous quantum measurement introduced in [A. Chantasri, J. Dressel and A. N. Jordan, Phys. Rev.
Chantasri, Areeya, Jordan, Andrew N.
core +2 more sources
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
Physics Letters B, 2010 We show that qubit and chirotope concepts are closely related. In fact, we prove that the qubit concept leads to a generalization of the chirotope concept, which we call qubitope. Moreover, we argue that a possible qubitope theory may suggest interesting applications of oriented matroid theory in at least three physical contexts, in which qubits make ...
J.A. Nieto, J.A. Nieto, J.A. Nieto
openaire +3 more sources
Nature Communications, 2023 AbstractCavity quantum electrodynamics (QED) uses a cavity to engineer the mode structure of the vacuum electromagnetic field such as to enhance the interaction between light and matter. Exploiting these ideas in solid-state systems has lead to circuit QED which has emerged as a valuable tool to explore the rich physics of quantum optics and as a ...
Cristóbal Lledó +7 more
openaire +5 more sources
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
openaire +6 more sources
VaR Estimation with Quantum Computing Noise Correction Using Neural Networks
Mathematics, 2023 In this paper, we present the development of a quantum computing method for calculating the value at risk (VaR) for a portfolio of assets managed by a finance institution.
Luis de Pedro +4 more
doaj +1 more source
Multiqubit Quantum Teleportation
, 2012 We provide a class of six-qubit states for three-qubit perfect teleportation. These states include the six-qubit cluster states as a special class. We generalize this class of six-qubit states to 2n-qubit pure states for n-qubit teleportation, n >=1 ...
Fei, Shao-Ming +3 more
core +1 more source