6 papers
Stability of digital and analog quantum simulations under noise
Jayant Rao, Jens Eisert, Tommaso Guaita
Quantum simulation is a central application of near-term quantum devices, pursued in both analog and digital architectures. A key challenge for both paradigms is the effect of impe…
Holonomic quantum computation: a scalable adiabatic architecture
Clara Wassner, Tommaso Guaita, Jens Eisert +1
Holonomic quantum computation exploits the geometric evolution of eigenspaces of a degenerate Hamiltonian to implement unitary evolution of computational states. In this work we in…
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…
Prospects for quantum advantage in machine learning from the representability of functions
Sergi Masot-Llima, Elies Gil-Fuster, Carlos Bravo-Prieto +2
Demonstrating quantum advantage in machine learning tasks requires navigating a complex landscape of proposed models and algorithms. To bring clarity to this search, we introduce a…
Highly-entangled, highly-doped states that are efficiently cross-device verifiable
Janek Denzler, Santiago Varona, Tommaso Guaita +1
In this paper, we introduce a class of highly entangled real quantum states that cannot be approximated by circuits with -many non-Clifford gates and prove that Bell sampling…
On the locality of qubit encodings of local fermionic modes
Tommaso Guaita
Known mappings that encode fermionic modes into a bosonic qubit system are non-local transformations. In this paper we establish that this must necessarily be the case, if the loca…