10 papers
Protecting Heisenberg scaling in quantum metrology via engineered dressed states
Wojciech Gorecki, Christiane P. Koch
Quantum metrology promises precision beyond classical limits but environmental noise, unless properly controlled, reduces the quantum advantage to at most a constant improvement. A…
Universal cooling of quantum systems via randomized measurements
Josias Langbehn, George Mouloudakis, Emma King +5
Designing cooling protocols is believed to require knowledge of the system spectrum. In contrast, cooling in nature occurs whenever the system is coupled to a cold bath. How does n…
Mitigating Dynamic Crosstalk with Optimal Control
Matthias G. Krauss, Luise C. Butzke, Christiane P. Koch
The prevalence of quantum crosstalk is an important barrier to scaling frequency-addressable qubit architectures, with dynamic crosstalk being particularly difficult to detect and…
Obstacles to Continuous Quantum Error Correction via Parity Measurements
Anton Halaski, Christiane P. Koch
Time-continuous quantum error correction, necessary to protect quantum information under time-dependent Hamiltonians, relies on weak continuous syndrome measurements. Implementing…
Motional entanglement in low-energy collisions near shape resonances
Yimeng Wang, Christiane P. Koch
Einstein, Podolsky, and Rosen discussed their paradox in terms of measuring the positions or momenta of two particles. These degrees of freedom can become entangled upon scattering…
Introduction to quantum control: From basic concepts to applications in quantum technologies
Christiane P. Koch
Quantum control refers to our ability to manipulate quantum systems. This tutorial-style chapter focuses on the use of classical electromagnetic fields to steer the system dynamics…