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20022011
most citedUncovering the overlapping community structure of complex networks in nature and society

5.5k citations

Showing 2009 · quant-phShow all

7 papers · 2 filters

quant-ph200922 cited

Scattering in the PT-symmetric Coulomb potential

Geza Levai, Petr Siegl, Miloslav Znojil

Scattering on the -symmetric Coulomb potential is studied along a U-shaped trajectory circumventing the origin in the complex plane from below. This trajectory refle…

quant-ph200953 cited

Scattering theory of cooling and heating in opto-mechanical systems

André Xuereb, Peter Domokos, János Asbóth +2

We present a one-dimensional scattering theory which enables us to describe a wealth of effects arising from the coupling of the motional degree of freedom of scatterers to the ele…

quant-ph200912 cited

Asymptotically vanishing PT-symmetric potentials and negative-mass Schroedinger equations

Miloslav Znojil, Petr Siegl, Géza Lévai

In paper I [M. Znojil and G. Lévai, Phys. Lett. A 271 (2000) 327] we introduced the Coulomb - Kratzer bound-state problem in its cryptohermitian, PT-symmetric version. An instabili…

quant-ph200941 cited

Practical methods for witnessing genuine multi-qubit entanglement in the vicinity of symmetric states

Geza Toth, Witlef Wieczorek, Roland Krischek +3

We present general numerical methods to construct witness operators for entanglement detection and estimation of the fidelity. Our methods are applied to detecting entanglement in…

quant-ph2009294 cited

Experimental entanglement of a six-photon symmetric Dicke state

Witlef Wieczorek, Roland Krischek, Nikolai Kiesel +3

We report on the experimental observation and characterization of a six-photon entangled Dicke state. We obtain a fidelity as high as 0.6540.024 and prove genuine six-photon e…

quant-ph200914 cited

Does wave function collapse cause gravity?

Lajos Diósi

We give a twist to the assumption - discussed in various earlier works - that gravity plays a role in the collapse of the wave function. This time we discuss the contrary assumptio…