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Quantum Simulators: Architectures and Opportunities
Ehud Altman, Kenneth R. Brown, Giuseppe Carleo +34
Quantum simulators are a promising technology on the spectrum of quantum devices from specialized quantum experiments to universal quantum computers. These quantum devices utilize…
Discrete time crystal in the gradient field Heisenberg model
Bikun Li, John S. Van Dyke, Ada Warren +2
We show that time crystal phases, which are known to exist for disorder-based many-body localized systems, also appear in systems where localization is due to strong magnetic field…
qubit-ADAPT-VQE: An adaptive algorithm for constructing hardware-efficient ansatze on a quantum processor
Ho Lun Tang, V. O. Shkolnikov, George S. Barron +4
Quantum simulation, one of the most promising applications of a quantum computer, is currently being explored intensely using the variational quantum eigensolver. The feasibility a…
Is the Trotterized UCCSD Ansatz chemically well-defined?
Harper R. Grimsley, Daniel Claudino, Sophia E. Economou +2
The variational quantum eigensolver (VQE) has emerged as one of the most promising near-term quantum algorithms that can be used to simulate many-body systems such as molecular ele…
Toward long-range entanglement between electrically driven single-molecule magnets
Khadijeh Najafi, Alexander Wysocki, Kyungwha Park +2
Over the past two decades, several molecules have been explored as possible building blocks of a quantum computer, a device that would provide exponential speedups for a number of…
Efficient Symmetry-Preserving State Preparation Circuits for the Variational Quantum Eigensolver Algorithm
Bryan T. Gard, Linghua Zhu, George S. Barron +3
The variational quantum eigensolver is one of the most promising approaches for performing chemistry simulations using noisy intermediate-scale quantum (NISQ) processors. The effic…
Microwave-based Arbitrary CPHASE Gates for Transmon Qubits
George S. Barron, F. A. Calderon-Vargas, Junling Long +2
Superconducting transmon qubits are of great interest for quantum computing and quantum simulation. A key component of quantum chemistry simulation algorithms is breaking up the ev…
Long-distance entangling gates between quantum dot spins mediated by a superconducting resonator
Ada Warren, Edwin Barnes, Sophia E. Economou
Recent experiments with silicon qubits demonstrated strong coupling of a microwave resonator to the spin of a single electron in a double quantum dot, opening up the possibility of…
Fast high-fidelity entangling gates for spin qubits in Si double quantum dots
F. A. Calderon-Vargas, George S. Barron, Xiu-Hao Deng +3
Implementing high-fidelity two-qubit gates in single-electron spin qubits in silicon double quantum dots is still a major challenge. In this work, we employ analytical methods to d…