5 papers
Multi-ion entangling gates mediated by spectrally unresolved modes
Modesto Orozco-Ruiz, Florian Mintert
Entangling interactions between distant qubits can be mediated via an additional degree of freedom. In conventional trapped-ion schemes, realizing a well-defined, coherent gate typ…
Fast thermal state preparation beyond native interactions
Alexander van Lomwel, Paul M. Schindler, Modesto Orozco-Ruiz +3
While questions on quantum simulation of ground state physics are mostly focussed on the realization of effective interactions, most work on quantum simulation of thermal physics e…
Amplitude-noise-resilient entangling gates for trapped ions
Nguyen H. Le, Modesto Orozco-Ruiz, Sahra A. Kulmiya +4
Noise resilience of quantum information processing is a crucial precondition to reach the fault-tolerance threshold. While resilience to many types of noise can be achieved through…
Quantum control without quantum states
Modesto Orozco-Ruiz, Nguyen H. Le, Florian Mintert
We show that combining ideas from the fields of quantum invariants and of optimal control can be used to design optimal quantum control solutions without explicit reference to quan…
Generally noise-resilient quantum gates for trapped-ions
Modesto Orozco-Ruiz, Wasim Rehman, Florian Mintert
We present an entangling gate scheme for trapped-ion chains that achieves high-fidelity operations with excited motional states despite multiple error sources. Our approach incorpo…