SUQUIT

SABANCI UNIVERSITY QUANTUM INFORMATION TEAM

Group Members

Buğra Gültekin Graduate Student

Solomon Brhanu Samuel Graduate Student

Graduates

Özgür Bozat PhD

Bilal Cantürk PhD

Barış Çakmak PhD

Fırat Diker PhD

Göktuğ Karpat PhD

İskender Yalçınkaya PhD

Melis Pahalı MS (Istanbul Technical University)

Past Postdoctoral Researchers

A. Levent Subaşı

Recent Publications

Spin bath decoherence of quantum entanglement, Z. Gedik, Solid State Communications 138, 82 (2006).

Spin bath decoherence mediated by phonons, Ö. Bozat and Z. Gedik, State Communications 148, 237 (2008).

Decoherence induced spontaneous symmetry breaking, G. Karpat and Z. Gedik, Optics Communications 282, 4460 (2009) (see Experimental demonstration of decoherence-induced spontaneous symmetry breaking, Y. -F Huang, L. Peng, L. Li, B. –H. Liu, C. –F. Li, and G. –C. Guo, Physical Review A 83, 052105 (2011)).

Entanglement of hard-core Bose gas in degenerate levels under local noise, Z. Gedik and G. Karpat, Physica C 470, S945 (2010).

Stability of flip and exchange symmetric entangled state classes under invertible local operations, Z. Gedik, Optics Communications 284, 681 (2011).

Correlation dynamics of qubit-qutrit systems in a classical dephasing environment, G. Karpat and Z. Gedik, Physics Letters A 375, 4166 (2011).

Optimal local transformations of flip and exchange symmetric entangled states, G. Karpat and Z. Gedik, Physics Letters A 376, 75 (2011).

Eigenvalue formulation of quantum mechanics near closed timelike curves, Z. Gedik, arXiv:1201.4870 [quant-ph].

Critical point estimation and long-range behavior in the one-dimensional XY model using thermal quantum and total correlations, B. Çakmak, G. Karpat, and Z. Gedik, Physics Letters A 376, 2982 (2012).

· Quantum correlations in a few-atom spin-1 Bose-Hubbard model, B. Çakmak, G. Karpat, and Z. Gedik, Physica Scripta T153, 014008 (2013).

· Invariant quantum discord in qubit-qutrit systems under local dephasing, G. Karpat and Z. Gedik, Physica Scripta T153, 014036 (2013).

· Application of the no-signaling principle to obtain quantum cloners for any allowed value of fidelity, Z. Gedik and B. Çakmak, Physical Review A 87, 042314 (2013).

· Quantum discord of SU(2) invariant states, B. Çakmak and Z. Gedik, Journal of Physics A: Mathematical and Theoretical 46, 465302 (2013).

· Computational speed-up with a single qutrit, Z. Gedik, arXiv:1403.5861 [quant-ph] (see 1) Determining the parity of a permutation using an experimental NMR qutrit, S. Dogra, Arvind, and K. Dorai, Physics Letters A 378, 3452 (2014), 2) Linear optical demonstration of quantum speed-up with a single qudit, X. Zhan, J. Li, H. Qin, Z. Bian,and P. Xue, Optics Express 23, 18422 (2015), 3) Demonstration of quantum permutation algorithm with a single photon ququart, F. Wang, Y. Wang, R. Liu, D. Chen, P. Zhang, H. Gao,and F. Li, Scientific Reports 5,10995 (2015) 4) Realization of quantum permutation algorithm in high dimensional Hilbert space, D. –X. Chen, R. –F. Liu, P. Zhang, Y. –L. Wang, H. –R. Li, H. Gao, and F. –L. Li, Chinese Physics B 26, 060305 (2017), 5) Optimization and experimental realization of quantum permutation algorithm, İ. Yalçınkaya and Z. Gedik, Physical Review A 96, 062339 (2017), 6) Optimal control of hybrid qubits: Implementing the quantum permutation algorithm, C. M. Rivera-Ruiz, E. F. de Lima, F. F. Fanchini, V. Lopez-Richard, and L. K. Castelano, Physical Review A 97, 032332 (2018)).

For a short presentation of (probably) the simplest quantum algorithm see the PDF file.

For a popular article about the algorithm see the Web page (in Portuguese) of Agência FAPESP and also the Science and Technology Research News page.

For a comprehensive catalog of quantum algorithms visit the Quantum Algorithm Zoo.

· Computational speed-up in a single qudit NMR quantum information processor, I. A. Silva, B. Çakmak, G. Karpat, E. L. G. Vidoto, D. O. Soares-Pinto, E. R. deAzevedo, F. F. Fanchini, and Z. Gedik, arXiv:1406.3579 [quant-ph].

· Computational speed-up with a single qudit, Z. Gedik, I. A. Silva, B. Çakmak, G. Karpat, E. L. G. Vidoto, D. O. Soares-Pinto, E. R. deAzevedo, and F. F. Fanchini, Scientific Reports 5, 14671 (2015) (combined version of arXiv:1403.5861 [quant-ph] and arXiv:1406.3579 [quant-ph]).

· Qubit state transfer via discrete-time quantum walks, İ. Yalçınkaya and Z. Gedik, Journal of Physics A: Mathematical and Theoretical 48, 225302 (2015).

selected for the cover image of volume 48, issue 22.

· Two-dimensional quantum walk under artificial magnetic field, İ. Yalçınkaya and Z. Gedik, Physical Review A 92, 042324 (2015).

· Coherent transport over an explosive percolation lattice, İ. Yalçınkaya and Z. Gedik, Journal of Physics A: Mathematical and Theoretical 50, 155101 (2017).

· Magic informationally complete POVMs with permutations, M. Planat and Z. Gedik, Royal Society Open Science 4, 170387 (2017).

· Optimization and experimental realization of quantum permutation algorithm, İ. Yalçınkaya and Z. Gedik, Physical Review A 96, 062339 (2017).

· Optimal upper bound of entropic uncertainty relation for mutually unbiased bases, B. Canturk and Z. Gedik, Physica A: Statistical Mechanics and its Applications 582, 126275 (2021).

· Weak measurement of Berry's phase, Z. Gedik, Journal of Physics A: Mathematical and Theoretical 54, 405301 (2021).

The degree of quantum contextuality in terms of concurrence for the KCBS scenario, F. Diker and Z. Gedik, International Journal of Theoretical Physics 61, 266 (2022).