10.9k citations
- Lawrence Berkeley National LaboratoryUS499 papers
- Argonne National LaboratoryUS489 papers
- University of OxfordGB479 papers
- University of ChicagoUS478 papers
- The Ohio State UniversityUS475 papers
- University of PittsburghUS475 papers
- University College LondonGB469 papers
- University of LiverpoolGB467 papers
- University of MichiganUS467 papers
- Yale UniversityUS462 papers
- University of GenevaCH459 papers
- University of GlasgowGB458 papers
7 papers · 2 filters
Hamiltonian-based graph-state ansatz for variational quantum algorithms
Abhinav Anand, Kenneth R. Brown
One promising application of near-term quantum devices is to prepare trial wavefunctions using short circuits for solving different problems via variational algorithms. For this pu…
A fixed-point algorithm for matrix projections with applications in quantum information
Shrigyan Brahmachari, Roberto Rubboli, Marco Tomamichel
We develop a fixed-point iterative algorithm that computes the matrix projection with respect to the Bures distance on the set of positive definite matrices that are invariant unde…
Leveraging commuting groups for an efficient variational Hamiltonian ansatz
Abhinav Anand, Kenneth R. Brown
Efficiently calculating the low-lying eigenvalues of Hamiltonians, written as sums of Pauli operators, is a fundamental challenge in quantum computing. While various methods have b…
Robust Syndrome Extraction via BCH Encoding
Eren Guttentag, Andrew Nemec, Kenneth R. Brown
Quantum data-syndrome (QDS) codes are a class of quantum error-correcting codes that protect against errors both on the data qubits and on the syndrome itself via redundant measure…
Identification of a natural fieldlike entanglement resource in trapped-ion chains
Natalie Klco, D. H. Beck
The electromagnetic trapping of ion chains can be regarded as a process of non-trivial entangled quantum state preparation within Hilbert spaces of the local axial motional modes.…
Observation of a finite-energy phase transition in a one-dimensional quantum simulator
Alexander Schuckert, Or Katz, Lei Feng +5
One of the most striking many-body phenomena in nature is the sudden change of macroscopic properties as the temperature or energy reaches a critical value. Such equilibrium transi…