8 papers
The subthreshold issue of fusion-based quantum computing
Matthias C. Löbl, Love A. M. Pettersson, Jan DragaÅ¡eviÄ +2
Fusion-based quantum architectures are the leading approach to photonic quantum computing. However, the sub-threshold regime, where logical error rates must reach the levels requir…
Photon Sorting with a Quantum Emitter
Kasper H. Nielsen, Etienne Corminboeuf, Benedikt Tissot +8
High-quality photonic Bell state measurements (BSMs) enable scalable universal quantum computing and long distance quantum communication. However, when implemented with linear opti…
High fidelity photon-photon gates by scattering off a two-level quantum emitter
Love A. Pettersson, Victor R. Christiansen, Klaus Mølmer +1
We present a scheme for implementing a high-fidelity non-linear phase shift on a photonic state. The scheme is based on repeated scattering off a two-level quantum emitter embedded…
Transforming graph states via Bell state measurements
Matthias C. Löbl, Love A. Pettersson, Stefano Paesani +1
Graph states are key resources for measurement-based quantum computing, which is particularly promising for photonic systems. Fusions are probabilistic Bell state measurements, mea…
Tailoring fusion-based photonic quantum computing schemes to quantum emitters
Ming Lai Chan, Thomas J. Bell, Love A. Pettersson +4
Fusion-based quantum computation is a promising quantum computing model where small-sized photonic resource states are simultaneously entangled and measured by fusion gates. Such o…
Long-distance quantum communication using concatenated ring graph codes
Love Pettersson, Anders S. Sørensen
To realize long-distance quantum communication, it is crucial to design quantum repeater architectures that can deal with transmission losses and operational errors. Code concatena…