450 citations · 3k across the 75 of their papers we have counts for
9 papers · 1 filter
Classical and Quantum Simulation of All-to-All Quantum Dynamics in Logarithmic Space
Maximilian Lutz, Rahul Trivedi, J. Ignacio Cirac
We study both the classical and the quantum complexity of the problem of estimating disorder-averaged quench dynamics for all-to-all spin Hamiltonians such as quantum Hopfield, She…
Gaussian-augmented bosonic matrix-product states: theory and applications
Erickson Tjoa, J. Ignacio Cirac
We propose and analyze the structure of a family of bosonic quantum many-body states that have the following features: (i) they include all pure Gaussian states and finite-dimensio…
Multi-agent Autoformalization of Tensor Network Theory
Sirui Lu, Erickson Tjoa, J. Ignacio Cirac
We build a team of specialized large language-model agents and present an agent-driven workflow for research-level formalization in theoretical physics, with the autoformalization…
How thermal is a filtered state?
Yilun Yang, J. Ignacio Cirac, Mari Carmen Bañuls
Quantum many-body states with sufficiently low energy variance can serve as approximations to thermal states, and they may be prepared by energy filtering simple pure states. In th…
Quantum computer architecture with ions in tweezer arrays
Benjamin F. Schiffer, Christopher Monroe, Peter Zoller +1
We propose a quantum computer architecture based on ions confined in optical tweezer arrays, combining the long coherence times of trapped-ion qubits with the reconfigurability and…
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…
Structure and Classification of Matrix Product Quantum Channels
Giorgio Stucchi, J. Ignacio Cirac, Rahul Trivedi +1
We develop a framework for Matrix Product Quantum Channels (MPQCs), a one-dimensional tensor-network description of completely positive, trace-preserving maps. We focus on translat…
Compiling Quantum Regular Language States
Armando Bellante, Reinis Irmejs, Marta Florido-Llinàs +4
State preparation compilers for quantum computers typically sit at two extremes: general-purpose routines that treat the target as an opaque amplitude vector, and bespoke construct…
Polaron-Polaritons in Subwavelength Arrays of Trapped Atoms
Kristian Knakkergaard Nielsen, Lukas Wangler, David Castells-Graells +4
Subwavelength arrays of atoms trapped in optical lattices or tweezers are inherently susceptible to deformations: Optomechanical forces displace atoms within their trapping potenti…