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Found 11 papers, 5 papers with code
Error mitigation for universal gates on encoded qubits
The Eastin-Knill theorem states that no quantum error correcting code can have a universal set of transversal gates.
Quantum Physics
Exploiting dynamic quantum circuits in a quantum algorithm with superconducting qubits
The execution of quantum circuits on real systems has largely been limited to those which are simply time-ordered sequences of unitary operations followed by a projective measurement.
Quantum Physics
Validating quantum computers using randomized model circuits
We introduce a single-number metric, quantum volume, that can be measured using a concrete protocol on near-term quantum computers of modest size ($n\lesssim 50$), and measure it on several state-of-the-art transmon devices, finding values as high as 8.
Quantum Physics
Supervised learning with quantum enhanced feature spaces
Both methods represent the feature space of a classification problem by a quantum state, taking advantage of the large dimensionality of quantum Hilbert space to obtain an enhanced solution.
Open Quantum Assembly Language
This document describes a quantum assembly language (QASM) called OpenQASM that is used to implement experiments with low depth quantum circuits.
Quantum Physics
Experimental demonstration of fault-tolerant state preparation with superconducting qubits
Robust quantum computation requires encoding delicate quantum information into degrees of freedom that are hard for the environment to change.
Quantum Physics
Hardware-efficient Variational Quantum Eigensolver for Small Molecules and Quantum Magnets
Quantum computers can be used to address molecular structure, materials science and condensed matter physics problems, which currently stretch the limits of existing high-performance computing resources.
Quantum Physics Superconductivity
Tapering off qubits to simulate fermionic Hamiltonians
Such encodings eliminate redundant degrees of freedom in a way that preserves a simple structure of the system Hamiltonian enabling quantum simulations with fewer qubits.
Quantum Physics
Self-Consistent Quantum Process Tomography
The essential ingredient is to define a likelihood function that assumes nothing about the gates used for preparation and measurement.
Quantum Physics
Complete universal quantum gate set approaching fault-tolerant thresholds with superconducting qubits
We use quantum process tomography to characterize a full universal set of all-microwave gates on two superconducting single-frequency single-junction transmon qubits.
Quantum Physics Mesoscale and Nanoscale Physics
Maximum Likelihood, Minimum Effort
We provide an efficient method for computing the maximum likelihood mixed quantum state (with density matrix rho) given a set of measurement outcome in a complete orthonormal operator basis subject to Gaussian noise.
Quantum Physics
