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Publications Influence

Gaussian Boson sampling

- C. Hamilton, R. Kruse, L. Sansoni, S. Barkhofen, C. Silberhorn, I. Jex
- Physics, Medicine
- Conference on Lasers and Electro-Optics (CLEO)
- 4 December 2016

We present the protocol for Gaussian Boson Sampling with single-mode squeezed states. We eliminate heralding and show that our proposal with the Hafnian matrix function can retain the higher photon… Expand

113 7- PDF

Decoherence and disorder in quantum walks: from ballistic spread to localization.

- A. Schreiber, K. N. Cassemiro, V. Potoček, A. Gábris, I. Jex, C. Silberhorn
- Physics, Medicine
- Physical review letters
- 13 January 2011

We investigate the impact of decoherence and static disorder on the dynamics of quantum particles moving in a periodic lattice. Our experiment relies on the photonic implementation of a… Expand

192 6- PDF

Detailed study of Gaussian boson sampling

- R. Kruse, C. Hamilton, L. Sansoni, S. Barkhofen, C. Silberhorn, I. Jex
- Physics
- 23 January 2018

Since the development of Boson sampling, there has been a quest to construct more efficient and experimentally feasible protocols to test the computational complexity of sampling from photonic… Expand

36 5- PDF

Experimentally realizable quantum comparison of coherent states and its applications

- E. Andersson, M. Curty, I. Jex
- Physics
- 19 January 2006

When comparing quantum states to each other, it is possible to obtain an unambiguous answer, indicating that the states are definitely different, already after a single measurement. In this paper we… Expand

80 4- PDF

Asymptotic evolution of random unitary operations

- J. Novotný, G. Alber, I. Jex
- Mathematics, Physics
- 31 August 2009

We analyze the asymptotic dynamics of quantum systems resulting from large numbers of iterations of random unitary operations. Although, in general, these quantum operations cannot be diagonalized it… Expand

26 3- PDF

Continuous deformations of the Grover walk preserving localization

- M. Štefaňák, I. Bezdeková, I. Jex
- Physics
- 23 May 2012

AbstractThe three-state Grover walk on a line exhibits the localization effect characterized by a non-vanishing probability of the particle to stay at the origin. We present two continuous… Expand

24 3- PDF

A 2D Quantum Walk Simulation of Two-Particle Dynamics

- A. Schreiber, A. G'abris, +6 authors C. Silberhorn
- Physics, Medicine
- Science
- 6 April 2012

Here, There, Everywhere Random walks are a powerful mathematical method that can be used to simulate certain processes in biology, chemistry, or even the stock market. They present a statistical… Expand

237 2- PDF

Quantum State Transfer and Network Engineering

- G. M. Nikolopoulos, I. Jex
- Engineering
- 7 November 2013

Faithful communication is a necessary precondition for large-scale quantum information processing and networking, irrespective of the physical platform. Thus, the problems of quantum-state transfer… Expand

79 2

Recurrence and Pólya number of quantum walks.

- M. Štefaňák, I. Jex, T. Kiss
- Mathematics, Physics
- Physical review letters
- 14 May 2007

We analyze the recurrence probability (Pólya number) for d-dimensional unbiased quantum walks. A sufficient condition for a quantum walk to be recurrent is derived. As a by-product we find a simple… Expand

84 2- PDF

Efficient bipartite quantum state purification in arbitrary dimensional Hilbert spaces

- G. Alber, A. Delgado, N. Gisin, I. Jex
- Mathematics, Physics
- 6 February 2001

A new purification scheme is proposed which applies to arbitrary dimensional bipartite quantum systems. It is based on the repeated application of a special class of nonlinear quantum maps and a… Expand

55 2- PDF