4 papers
Computable fermionic non-Gaussianity from the covariance matrix
Poetri Sonya Tarabunga, Bernhard Jobst, Raúl Morral-Yepes +4
Fermionic non-Gaussianity, or fermionic magic, is a key resource underlying the computational complexity of fermionic quantum systems, yet tractable and operationally meaningful wa…
Benchmark of quantum algorithms for ground state preparation in the presence of noise
Daniel Molpeceres, Sirui Lu, J. Ignacio Cirac +1
We compare the performance of representative cooling, adiabatic, and optimization algorithms for ground-state preparation in the presence of noise. Using an exactly solvable family…
Disentangling strategies and entanglement transitions in unitary circuit games with matchgates
Raúl Morral-Yepes, Marc Langer, Adam Gammon-Smith +2
In unitary circuit games, two competing parties, an "entangler" and a "disentangler", can induce an entanglement phase transition in a quantum many-body system. The transition occu…
Quantum algorithms for cooling: a simple case study
Daniel Molpeceres, Sirui Lu, J. Ignacio Cirac +1
Preparation of low-energy quantum many-body states has a wide range of applications in quantum information processing and condensed matter physics. Quantum cooling algorithms offer…