Hasil untuk "physics.atom-ph"

G. Gutierrez, F. Pálizas, G. Doglio et al.

S. Matsuyama, J. Llopis, Q. Deveraux et al.

J. Campbell, G. Fahey, B. W. Wolf

F. Hammes, W. Verstraete

M. Lemmon, K. Ferguson

S. Nugent, Devinder Kumar, D. Rampton et al.

M. Sánchez-Monedero, A. Roig, C. Paredes et al.

M. Vela, L. Camacho-Lobato, R. Srinivasan et al.

E. Tombácz, M. Szekeres

Jiang Jiang, Jie Chen, Y. Xiong

S. Berthrong, E. Jobbágy, R. B. Jackson

Andrew Byun, Seokho Jeong, Jaewook Ahn

Higher-order interactions in spin-based Hamiltonians are crucial in addressing numerous fundamentally significant physical problems. In this work, Rydberg-atom graph gadgets are introduced to effectively program $K$-th order interactions within a Rydberg atom system. This approach facilitates the determination of the ground states of an Ising-type Hamiltonian, encoded to solve higher-order unconstrained optimization problems. A favorable scaling behavior, $O(N^K)$, is expected in terms of the number of atoms required for $N$-vertex hypergraph optimization problems.

S. Bressanelli, K. Stiasny, S. L. Allison et al.

A. Mccauley, S. Scientist, Clain Jones et al.

J. Slonczewski, M. Fujisawa, Mark Dopson et al.

Andrzej Czarnecki

Probabilities of finding an antiparticle in an atom or ion containing a particle of spin 1/2 or spin 0 are determined. The spin 1/2 case was previously solved by Hans Bethe and his work is summarized. The spin 0 case is treated numerically for an arbitrary atomic number and analytically for small atomic numbers. The main tool for the spin 0 case is the Feshbach-Villars representation of the Klein-Gordon equation.

A. Silber, I. Levkovitch, E. Graber

M. Pedersen, A. Meyer

Roberto Merlin, Andrea Bianchini

Pulses applied to an inhomogeneously broadened set of harmonic oscillators, previously prepared in squeezed states, can lead to a recovery of coherence, manifesting itself as echoes, similar to those exhibited by an ensemble of spins when excited by properly designed electromagnetic pulses. Such echoes, of classical or quantum nature, are expected to arise in the squeezing of linear systems of various sorts and, in particular, light and vibrational modes.

Mihee M. Kim, Yecheol Rho, K. Jin et al.