2.9k citations · 9.5k across the 40 of their papers we have counts for
40 papers
A Berry-Esseen Bound for Quantum Lattice Systems
Marcus Cramer, Fernando G. S. L. Brandão, Mădălin Guţă +2
It is expected that the statistical fluctuations of local observables in large quantum systems obey the central limit theorem, and approximate a normal distribution as their size g…
Optimal control for Hamiltonian parameter estimation in non-commuting and bipartite quantum dynamics
Shushen Qin, Marcus Cramer, Christiane P. Koch +1
The ability to characterise a Hamiltonian with high precision is crucial for the implementation of quantum technologies. In addition to the well-developed approaches utilising opti…
Petz recovery versus matrix reconstruction
Milan Holzäpfel, Marcus Cramer, Nilanjana Datta +1
The reconstruction of the state of a multipartite quantum mechanical system represents a fundamental task in quantum information science. At its most basic, it concerns a state of…
Multiparticle entanglement criteria for nonsymmetric collective variances
Oliver Marty, Marcus Cramer, Giuseppe Vitagliano +2
We introduce a general scheme to detect various multiparticle entanglement structures from global non-permutationally invariant observables. In particular, we derive bounds on the…
Efficient tomography of a quantum many-body system
B. P. Lanyon, C. Maier, M. Holzäpfel +10
Quantum state tomography (QST) is the gold standard technique for obtaining an estimate for the state of small quantum systems in the laboratory. Its application to systems with mo…
Thermalization and Return to Equilibrium on Finite Quantum Lattice Systems
Terry Farrelly, Fernando G. S. L. Brandao, Marcus Cramer
Thermal states are the bedrock of statistical physics. Nevertheless, when and how they actually arise in closed quantum systems is not fully understood. We consider this question f…