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20102026
most citedEntangled inputs cannot make imperfect quantum channels perfect

18 citations · 22 across the 18 of their papers we have counts for

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12 papers · 2 filters

quant-ph2026

A provable quantum advantage for approximate optimization via decoded quantum interferometry

Maximilian J. Kramer, Elies Gil-Fuster, Benjamin D. M. Jones +2

Decoded quantum interferometry (DQI) is a novel paradigm for tackling approximate optimization problems on quantum computers. This framework comes with strong performance guarantee…

quant-ph2026

Adaptivity is all you need: Optimal stabilizer learning using just single-copy measurements

L. Bittel, J. Eisert, W. Gong +2

Stabilizer states are central to quantum computing, underlying quantum error correction, benchmarking, and efficient classical simulation. Yet their learnability exhibits a strikin…

quant-ph2026

Testing quantum Gaussianity with constant sample complexity

Mahtab Yaghubi Rad, Ricard Puig, Saksham Hassanandani +4

Efficiently testing whether a quantum state possesses a given structure is both a fundamental and a practical task in quantum information. Among the most important structured famil…

quant-ph2026

The power of oracle access: Optimal sample and query complexity of the abelian state hidden subgroup problem

Yuhan Liu, Jose Carrasco, Jens Eisert +1

In the quest to identify further quantum algorithms exhibiting superpolynomial speed-ups, a recurring theme is that the complexity of a problem is largely shaped by the input acces…

quant-ph2026

Efficient learning of Clifford disentanglers and typical -doped unitaries with exponentially more gates

Gerard Aguilar, Sofiene Jerbi, Jens Eisert +1

Highly entangled and highly non-stabilizer quantum states need not be hard to learn. We give efficient algorithms for testing and recovering hidden tensor-product structure in unkn…

quant-ph2026

Cautious optimism for deep parameterized quantum circuits

Marie Kempkes, Elies Gil-Fuster, Carlos Bravo-Prieto +5

A central challenge in quantum machine learning is understanding the scaling behavior of parameterized quantum circuits (PQCs). In particular, it remains unclear how their performa…

quant-ph2026

Approximate sampling from decoded quantum interferometry via Markov chain Monte Carlo methods

Elies Gil-Fuster, Matan Ninio, Lennart Bittel +4

Optimization problems are among the leading candidates for industrially relevant quantum advantage. Decoded quantum interferometry (DQI) has been proposed to tackle approximate opt…

quant-ph2026

Provable learning separation for predicting time-evolution of quantum many-body systems

Rahul Bandyopadhyay, Riccardo Molteni, Jens Eisert +2

Given that quantum computers are naturally suited to simulate the behavior of quantum many-body systems, an immediate question arises: can one formulate physically motivated quantu…

quant-ph2026

Optimal stellar rank approximation of squeezed cat states with photon catalysis

Julian K. Nauth, Nathan Walk, Ananga M. Datta +4

Non-Gaussian quantum states and operations constitute essential resources for achieving quantum computational advantage and enabling quantum error correction in bosonic platforms.…

quant-ph2026

Optimal algorithmic complexity of inference in quantum kernel methods

Elies Gil-Fuster, Seongwook Shin, Sofiene Jerbi +2

Quantum kernel methods are among the leading candidates for achieving quantum advantage in supervised learning. A key bottleneck is the cost of inference: evaluating a trained mode…

quant-ph2026

A PAC-Bayesian approach to generalization for quantum models

Pablo Rodriguez-Grasa, Matthias C. Caro, Jens Eisert +3

Generalization is a central concept in machine learning theory, yet for quantum models, it is predominantly analyzed through uniform bounds that depend on a model's overall capacit…

quant-ph2026

Simulation of noisy quantum circuits using frame representations

Janek Denzler, Jose Carrasco, Jens Eisert +1

One of the core research questions in the theory of quantum computing is to find out to what precise extent the classical simulation of a noisy quantum circuits is possible and whe…