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- Tel Aviv UniversityIL388 papers
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20 papers · 2 filters
Hamiltonian learning from time dynamics using variational algorithms
Rishabh Gupta, Raja Selvarajan, Manas Sajjan +2
The Hamiltonian of a quantum system governs the dynamics of the system via the Schrodinger equation. In this paper, the Hamiltonian is reconstructed in the Pauli basis using measur…
A polynomial-time classical algorithm for noisy random circuit sampling
Dorit Aharonov, Xun Gao, Zeph Landau +2
We give a polynomial time classical algorithm for sampling from the output distribution of a noisy random quantum circuit in the regime of anti-concentration to within inverse poly…
Finding the ground state of a lattice gauge theory with fermionic tensor networks: a demonstration
Patrick Emonts, Ariel Kelman, Umberto Borla +3
Tensor network states, and in particular Projected Entangled Pair States (PEPS) have been a strong ansatz for the variational study of complicated quantum many-body systems, thanks…
Magnetic-field-independent spin-exchange relaxation-free magnetometer
Mark Dikopoltsev, Uriel Levy, Or Katz
SERF magnetometers based on dense ensembles of alkali-metal spins are precision quantum sensors that hold the record of measured and projected sensitivity to magnetic fields, in th…
Optical protection of alkali-metal atoms from spin relaxation
Avraham Berrebi, Mark Dikopoltsev, Ori Katz +1
We present an optical technique for suppressing relaxation in alkali-metal spins using a single off-resonant laser beam. The method harnesses a physical mechanism that synchronizes…
Suppressing the Decoherence of Alkali-Metal Spins at Low Magnetic Fields
Mark Dikopoltsev, Avraham Berrebi, Uriel Levy +1
Interactions of electron spins with rotational degrees of freedom during collisions or with external fields are fundamental processes that limit the coherence time of spin gases. W…