6 papers · 1 filter
Scalable and Parallel Tweezer Gates for Quantum Computing with Long Ion Strings
Tobias Olsacher, Lukas Postler, Philipp Schindler +3
Trapped-ion quantum computers have demonstrated high-performance gate operations in registers of about ten qubits. However, scaling up and parallelizing quantum computations with l…
Monitoring Quantum Simulators via Quantum Non-Demolition Couplings to Atomic Clock Qubits
Denis V. Vasilyev, Andrey Grankin, Mikhail A. Baranov +2
We discuss monitoring the time evolution of an analog quantum simulator via a quantum non-demolition (QND) coupling to an auxiliary `clock' qubit. The QND variable of interest is t…
Quantum Non-demolition Measurement of a Many-Body Hamiltonian
Dayou Yang, Andrey Grankin, Lukas M. Sieberer +2
In an ideal quantum measurement, the wave function of a quantum system collapses to an eigenstate of the measured observable, and the corresponding eigenvalue determines the measur…
Digital Quantum Simulation, Trotter Errors, and Quantum Chaos of the Kicked Top
Lukas M. Sieberer, Tobias Olsacher, Andreas Elben +4
This work aims at giving Trotter errors in digital quantum simulation (DQS) of collective spin systems an interpretation in terms of quantum chaos of the kicked top. In particular,…
Designing ground states of Hopfield networks for quantum state preparation
Clemens Dlaska, Lukas M. Sieberer, Wolfgang Lechner
We present a protocol to store a polynomial number of arbitrary bit strings, encoded as spin configurations, in the approximately degenerate low-energy manifold of an all-to-all co…
Probing scrambling using statistical correlations between randomized measurements
Benoît Vermersch, Andreas Elben, Lukas M. Sieberer +2
We propose and analyze a protocol to study quantum information scrambling using statistical correlations between measurements, which are performed after evolving a quantum system f…