32 citations · 74 across the 11 of their papers we have counts for
12 papers
Near-Optimal Quantum Time Evolution Circuits via Provably Convergent Compression
Erenay Karacan, Isabel Nha Minh Le, Matteo D'Anna +3
Variational compression can significantly lower implementation overheads for encoding the time evolution of Hamiltonians into quantum circuits. However, they usually lack global co…
Error Correction of Beamsplitter-Generated Entangled GKP States
Moritz Fontboté-Schmidt, Jeremy Metzner, Florence Berterottière +8
To be useful, quantum computers will be required to successfully correct errors occurring at the hardware level. Bosonic codes provide a hardware-efficient option for error correct…
Quantum theory for phonon lasing and non-classical state generation in mixed-species and single trapped ions
David Baur, Tanja Behrle, Ivan Rojkov +4
In this article we present a comprehensive theoretical investigation of phonon lasing with mixed-species trapped ions, as demonstrated in [T. Behrle, Phys. Rev. Lett. 131 (2023)],…
Non-linear cooling and control of a mechanical quantum harmonic oscillator
Matteo Simoni, Ivan Rojkov, Matteo Mazzanti +7
Non-linearities are a key feature allowing non-classical control of quantum harmonic oscillators. However, when non-linearities are strong, designing protocols for control is often…
Scaling Quantum Algorithms via Dissipation: Avoiding Barren Plateaus
Elias Zapusek, Ivan Rojkov, Florentin Reiter
Variational quantum algorithms (VQAs) have enabled a wide range of applications on near-term quantum devices. However, their scalability is fundamentally limited by barren plateaus…
Scalable dissipative quantum error correction for qubit codes
Ivan Rojkov, Elias Zapusek, Florentin Reiter
Dissipative quantum error correction (QEC) autonomously protects quantum information using engineered dissipation and offers a promising alternative to error correction via measure…
Learning agent-based approach to the characterization of open quantum systems
Lorenzo Fioroni, Ivan Rojkov, Florentin Reiter
Characterizing quantum processes is crucial for the execution of quantum algorithms on available quantum devices. A powerful framework for this purpose is the Quantum Model Learnin…
Stabilization of cat-state manifolds using nonlinear reservoir engineering
Ivan Rojkov, Matteo Simoni, Elias Zapusek +2
We introduce a novel reservoir engineering approach for stabilizing multi-component Schrödinger's cat manifolds. The fundamental principle of the method lies in the destructive int…
Characterization of coherent errors in gate layers with robustness to Pauli noise
Noah Kaufmann, Ivan Rojkov, Florentin Reiter
Characterization of quantum devices generates insights into their sources of disturbances. State-of-the-art characterization protocols often focus on incoherent noise and eliminate…
Two-qubit operations for finite-energy Gottesman-Kitaev-Preskill encodings
Ivan Rojkov, Paul Moser Röggla, Martin Wagener +4
We present techniques for performing two-qubit gates on Gottesman-Kitaev-Preskill (GKP) codes with finite energy, and find that operations designed for ideal infinite-energy codes…
Generation of a maximally entangled state using collective optical pumping
M. Malinowski, C. Zhang, V. Negnevitsky +7
We propose and implement a novel scheme for dissipatively pumping two qubits into a singlet Bell state. The method relies on a process of collective optical pumping to an excited l…
Bias in error-corrected quantum sensing
Ivan Rojkov, David Layden, Paola Cappellaro +2
The sensitivity afforded by quantum sensors is limited by decoherence. Quantum error correction (QEC) can enhance sensitivity by suppressing decoherence, but it has a side-effect:…