144 citations · 1k across the 41 of their papers we have counts for
11 papers · 1 filter
Continuous Symmetry Breaking in a Trapped-Ion Spin Chain
Lei Feng, Or Katz, Casey Haack +5
One-dimensional systems exhibiting a continuous symmetry can host quantum phases of matter with true long-range order only in the presence of sufficiently long-range interactions.…
Experimental Implementation of an Efficient Test of Quantumness
Laura Lewis, Daiwei Zhu, Alexandru Gheorghiu +11
A test of quantumness is a protocol where a classical user issues challenges to a quantum device to determine if it exhibits non-classical behavior, under certain cryptographic ass…
Demonstration of three- and four-body interactions between trapped-ion spins
Or Katz, Lei Feng, Andrew Risinger +2
Quantum processors use the native interactions between effective spins to simulate Hamiltonians or execute quantum gates. In most processors, the native interactions are pairwise,…
Constraints on axion-like dark matter from a SERF comagnetometer
Itay M. Bloch, Roy Shaham, Yonit Hochberg +3
Ultralight axion-like particles are well-motivated relics that might compose the cosmological dark matter and source anomalous time-dependent magnetic fields. We report on terrestr…
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…
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…
Observation of trap-assisted formation of atom-ion bound states
Meirav Pinkas, Or Katz, Jonathan Wengrowicz +2
Pairs of free particles cannot form bound states in elastic collision due to momentum and energy conservation. In many ultracold experiments, however, the particles collide in the…
Programmable quantum simulations of bosonic systems with trapped ions
Or Katz, Christopher Monroe
Trapped atomic ion crystals are a leading platform for quantum simulations of spin systems, with programmable and long-range spin-spin interactions mediated by excitations of phono…
Programmable N-body interactions with trapped ions
Or Katz, Marko Cetina, Christopher Monroe
Trapped atomic ion qubits or effective spins are a powerful quantum platform for quantum computation and simulation, featuring densely connected and efficiently programmable intera…
-body interactions between trapped ion qubits via spin-dependent squeezing
Or Katz, Marko Cetina, Christopher Monroe
We describe a simple protocol for the single-step generation of -body entangling interactions between trapped atomic ion qubits. We show that qubit state-dependent squeezing ope…
Enhanced coupling of electron and nuclear spins by quantum tunneling resonances
Anatoli Tsinovoy, Or Katz, Arie Landau +1
Noble-gas spins feature hours long coherence times owing to their great isolation from the environment, and find practical usage in various applications. However, this isolation le…