659 citations · 2.1k across the 17 of their papers we have counts for
11 papers · 1 filter
Effects of surface treatments on flux tunable transmon qubits
M. Mergenthaler, C. Müller, M. Ganzhorn +9
One of the main limitations in state-of-the art solid-state quantum processors are qubit decoherence and relaxation due to noise in their local environment. For the field to advanc…
Benchmarking the noise sensitivity of different parametric two-qubit gates in a single superconducting quantum computing platform
M. Ganzhorn, G. Salis, D. J. Egger +8
The possibility to utilize different types of two-qubit gates on a single quantum computing platform adds flexibility in the decomposition of quantum algorithms. A larger hardware-…
Time-resolved tomography of a driven adiabatic quantum simulation
Gian Salis, Nikolaj Moll, Marco Roth +2
A typical goal of a quantum simulation is to find the energy levels and eigenstates of a given Hamiltonian. This can be realized by adiabatically varying the system control paramet…
Gate-efficient simulation of molecular eigenstates on a quantum computer
Marc Ganzhorn, Daniel J. Egger, Panagiotis Kl. Barkoutsos +8
A key requirement to perform simulations of large quantum systems on near-term quantum hardware is the design of quantum algorithms with short circuit depth that finish within the…
Local control theory for superconducting qubits
M. Malis, P. Kl. Barkoutsos, M. Ganzhorn +4
In this work, we develop a method to design control pulses for fixed-frequency superconducting qubits coupled via tunable couplers based on local control theory, an approach common…
Adiabatic quantum simulations with driven superconducting qubits
Marco Roth, Nikolaj Moll, Gian Salis +4
We propose a quantum simulator based on driven superconducting qubits where the interactions are generated parametrically by a polychromatic magnetic flux modulation of a tunable b…
Quantum algorithms for electronic structure calculations: particle/hole Hamiltonian and optimized wavefunction expansions
Panagiotis Kl. Barkoutsos, Jerome F. Gonthier, Igor Sokolov +9
In this work we investigate methods to improve the efficiency and scalability of quantum algorithms for quantum chemistry applications. We propose a transformation of the electroni…
Entanglement generation in superconducting qubits using holonomic operations
Daniel J. Egger, Marc Ganzhorn, Gian Salis +6
We investigate a non-adiabatic holonomic operation that enables us to entangle two fixed-frequency superconducting transmon qubits attached to a common bus resonator. Two coherent…
Pulsed reset protocol for fixed-frequency superconducting qubits
Daniel J. Egger, Max Werninghaus, Marc Ganzhorn +4
Improving coherence times of quantum bits is a fundamental challenge in the field of quantum computing. With long-lived qubits it becomes, however, inefficient to wait until the qu…
Quantum optimization using variational algorithms on near-term quantum devices
Nikolaj Moll, Panagiotis Barkoutsos, Lev S. Bishop +15
Universal fault-tolerant quantum computers will require error-free execution of long sequences of quantum gate operations, which is expected to involve millions of physical qubits.…
Analysis of parametrically driven exchange-type (iSWAP) and two-photon (bSWAP) interactions between superconducting qubits
Marco Roth, Marc Ganzhorn, Nikolaj Moll +3
A current bottleneck for quantum computation is the realization of high-fidelity two-qubit quantum operations between two and more quantum bits in arrays of coupled qubits. Gates b…