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Relaxation times do not capture logical qubit dynamics
Amit Kumar Pal, Philipp Schindler, Alexander Erhard +5
Quantum error correction procedures have the potential to enable faithful operation of large-scale quantum computers. They protect information from environmental decoherence by sto…
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…
Entangling logical qubits with lattice surgery
Alexander Erhard, Hendrik Poulsen Nautrup, Michael Meth +8
Future quantum computers will require quantum error correction for faithful operation. The correction capabilities come with an overhead for performing fault-tolerant logical opera…
Deterministic correction of qubit loss
Roman Stricker, Davide Vodola, Alexander Erhard +7
The loss of qubits - the elementary carriers of quantum information - poses one of the fundamental obstacles towards large-scale and fault-tolerant quantum information processors.…
Coherent rotations of qubits within a multi-species ion-trap quantum computer
Martin W. van Mourik, Esteban A. Martinez, Lukas Gerster +4
We describe, realize, and experimentally investigate a method to perform physical rotations of ion chains, trapped in a segmented surface Paul trap, as a building block for large s…