From the 1 of 2.3k papers with an AI index.
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- Jožef Stefan InstituteSI968 papers
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- High Energy Accelerator Research OrganizationJP604 papers
- Max Planck Institute for PhysicsDE583 papers
9 papers · 2 filters
How many CNOT gates does it take to generate a three-qubit state ?
Marko Znidaric, Olivier Giraud, Bertrand Georgeot
The number of two-qubit gates required to transform deterministically a three-qubit pure quantum state into another is discussed. We show that any state can be prepared from a prod…
The two-body random spin ensemble and a new type of quantum phase transition
Iztok Pizorn, Tomaz Prosen, Stefan Mossmann +1
We study the properties of a two-body random matrix ensemble for distinguishable spins. We require the ensemble to be invariant under the group of local transformations and analyze…
Egorov property in perturbed cat map
Martin Horvat, Mirko Degli Esposti
We study the time evolution of the quantum-classical correspondence (QCC) for the well known model of quantised perturbed cat maps on the torus in the very specific regime of semi-…
Many body localization in Heisenberg XXZ magnet in a random field
Marko Znidaric, Tomaz Prosen, Peter Prelovsek
We numerically investigate Heisenberg XXZ spin-1/2 chain in a spatially random static magnetic field. We find that tDMRG simulations of time evolution can be performed efficiently,…
Operator space entanglement entropy in transverse Ising chain
Tomaz Prosen, Iztok Pizorn
The efficiency of time dependent density matrix renormalization group methods is intrinsically connected with the rate of entanglement growth. We introduce a new measure of entangl…
The bends on a quantum waveguide and cross-products of Bessel functions
Martin Horvat, Tomaz Prosen
A detailed analysis of the wave-mode structure in a bend and its incorporation into a stable algorithm for calculation of the scattering matrix of the bend is presented. The calcul…