1.3k citations · 21.7k across the 114 of their papers we have counts for
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Controlling long ion strings for quantum simulation and precision measurements
Florian Kranzl, Manoj K. Joshi, Christine Maier +4
Scaling a trapped-ion based quantum simulator to a large number of ions creates a fully-controllable quantum system that becomes inaccessible to numerical methods. When highly anis…
Experimental Bayesian calibration of trapped ion entangling operations
Lukas Gerster, Fernando Martínez-García, Pavel Hrmo +7
The performance of quantum gate operations is experimentally determined by how correct operational parameters can be determined and set, and how stable these parameters can be main…
Versatile fidelity estimation with confidence
Akshay Seshadri, Martin Ringbauer, Jacob Spainhour +3
As quantum devices become more complex and the requirements on these devices become more demanding, it is crucial to be able to verify the performance of such devices in a scalable…
Demonstration of fault-tolerant universal quantum gate operations
Lukas Postler, Sascha Heußen, Ivan Pogorelov +10
Quantum computers can be protected from noise by encoding the logical quantum information redundantly into multiple qubits using error correcting codes. When manipulating the logic…
Characterizing quantum instruments: from non-demolition measurements to quantum error correction
Roman Stricker, Davide Vodola, Alexander Erhard +7
In quantum information processing quantum operations are often processed alongside measurements which result in classical data. Due to the information gain of classical measurement…
A universal qudit quantum processor with trapped ions
Martin Ringbauer, Michael Meth, Lukas Postler +4
Today's quantum computers operate with a binary encoding that is the quantum analog of classical bits. Yet, the underlying quantum hardware consists of information carriers that ar…
Optimal metrology with programmable quantum sensors
Christian D. Marciniak, Thomas Feldker, Ivan Pogorelov +7
Quantum sensors are an established technology that has created new opportunities for precision sensing across the breadth of science. Using entanglement for quantum-enhancement wil…
Electric field noise in a high-temperature superconducting surface ion trap
Philip C. Holz, Kirill Lakhmanskiy, Dominic Rathje +3
Scaling up trapped-ion quantum computers requires new trap materials to be explored. Here, we present experiments with a surface ion trap made from the high-temperature superconduc…
Motion analysis of a trapped ion chain by single photon self-interference
G. Cerchiari, G. Araneda, L. Podhora +3
We present an optical scheme to detect the oscillations of a two-ion string confined in a linear Paul trap. The motion is detected by analyzing the intensity correlations in the fl…
Heating of a trapped ion induced by dielectric materials
Markus Teller, Dario A. Fioretto, Philip C. Holz +8
Electric-field noise due to surfaces disturbs the motion of nearby trapped ions, compromising the fidelity of gate operations that are the basis for quantum computing algorithms. W…
A compact ion-trap quantum computing demonstrator
Ivan Pogorelov, Thomas Feldker, Christian D. Marciniak +13
Quantum information processing is steadily progressing from a purely academic discipline towards applications throughout science and industry. Transitioning from lab-based, proof-o…