779 citations · 5.8k across the 56 of their papers we have counts for
4 papers · 1 filter
A Quantum Approach to Classical Statistical Mechanics
Rolando D. Somma, Cristian D. Batista, Gerardo Ortiz
We present a new approach to study the thermodynamic properties of -dimensional classical systems by reducing the problem to the computation of ground state properties of a -…
Lower bounds for the fidelity of entangled state preparation
R. D. Somma, J. Chiaverini, D. J. Berkeland
Estimating the fidelity of state preparation in multi-qubit systems is generally a time-consuming task. Nevertheless, this complexity can be reduced if the desired state can be cha…
Optimal Quantum Measurements of Expectation Values of Observables
Emanuel Knill, Gerardo Ortiz, Rolando D. Somma
Experimental characterizations of a quantum system involve the measurement of expectation values of observables for a preparable state |psi> of the quantum system. Such expectation…
Efficient solvability of Hamiltonians and limits on the power of some quantum computational models
Rolando Somma, Howard Barnum, Gerardo Ortiz +1
We consider quantum computational models defined via a Lie-algebraic theory. In these models, specified initial states are acted on by Lie-algebraic quantum gates and the expectati…