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20212026
most citedTraining variational quantum algorithms is NP-hard

428 citations · 559 across the 22 of their papers we have counts for

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Showing 2024Show all

7 papers · 1 filter

quant-ph2024★ 4 cited

Optimal estimates of trace distance between bosonic Gaussian states and applications to learning

Lennart Bittel, Francesco Anna Mele, Antonio Anna Mele +2

Gaussian states of bosonic quantum systems enjoy numerous technological applications and are ubiquitous in nature. Their significance lies in their simplicity, which in turn rests…

quant-ph2024★ 6 cited

Optimal trace-distance bounds for free-fermionic states: Testing and improved tomography

Lennart Bittel, Antonio Anna Mele, Jens Eisert +1

Free-fermionic states, also known as fermionic Gaussian states, represent an important class of quantum states ubiquitous in physics. They are uniquely and efficiently described by…

quant-ph2024★ 1 cited

Experimental measurement and a physical interpretation of quantum shadow enumerators

Daniel Miller, Kyano Levi, Lukas Postler +18

Throughout its history, the theory of quantum error correction has heavily benefited from translating classical concepts into the quantum setting. In particular, classical notions…

quant-ph2024★ 1 cited

Full classification of Pauli Lie algebras

Gerard Aguilar, Simon Cichy, Jens Eisert +1

Lie groups, and therefore Lie algebras, are fundamental structures in quantum physics that determine the space of possible trajectories of evolving systems. However, classification…

quant-ph2024★ 12 cited

Learning quantum states of continuous variable systems

Francesco Anna Mele, Antonio Anna Mele, Lennart Bittel +5

Quantum state tomography, aimed at deriving a classical description of an unknown state from measurement data, is a fundamental task in quantum physics. In this work, we analyse th…

quant-ph2024★ 90 cited

Stabilizer entropies are monotones for magic-state resource theory

Lorenzo Leone, Lennart Bittel

Magic-state resource theory is a powerful tool with applications in quantum error correction, many-body physics, and classical simulation of quantum dynamics. Despite its broad sco…

quant-ph2024★ 2 cited

PAC-learning of free-fermionic states is NP-hard

Lennart Bittel, Antonio A. Mele, Jens Eisert +1

Free-fermionic states, also known as matchgates or Gaussian states, are a fundamental class of quantum states due to their efficient classical simulability and their crucial role a…