Zobrazeno 1 - 10
of 25
pro vyhledávání: '"Kukuljan, Ivan"'
Autor:
Waldmannstetter, Diana, Ezhov, Ivan, Wiestler, Benedikt, Campi, Francesco, Kukuljan, Ivan, Ehrlich, Stefan, Vinayahalingam, Shankeeth, Baheti, Bhakti, Chakrabarty, Satrajit, Baid, Ujjwal, Bakas, Spyridon, Schwarting, Julian, Metz, Marie, Kirschke, Jan S., Rueckert, Daniel, Heckemann, Rolf A., Piraud, Marie, Menze, Bjoern H., Kofler, Florian
Accurate image registration is pivotal in biomedical image analysis, where selecting suitable registration algorithms demands careful consideration. While numerous algorithms are available, the evaluation metrics to assess their performance have rema
Externí odkaz:
http://arxiv.org/abs/2308.01318
Autor:
Tajik, Mohammadamin, Kukuljan, Ivan, Sotiriadis, Spyros, Rauer, Bernhard, Schweigler, Thomas, Cataldini, Federica, Sabino, João, Møller, Frederik, Schüttelkopf, Philipp, Ji, Si-Cong, Sels, Dries, Demler, Eugene, Schmiedmayer, Jörg
Theoretical understanding of the scaling of entropies and the mutual information has led to significant advances in the research of correlated states of matter, quantum field theory, and gravity. Measuring von Neumann entropy in quantum many-body sys
Externí odkaz:
http://arxiv.org/abs/2206.10563
Autor:
Emonts, Patrick, Kukuljan, Ivan
Publikováno v:
Phys. Rev. Research 4, 033039 (2022)
Entanglement is the fundamental difference between classical and quantum systems and has become one of the guiding principles in the exploration of high- and low-energy physics. The calculation of entanglement entropies in interacting quantum field t
Externí odkaz:
http://arxiv.org/abs/2202.11113
We investigate the potential of tensor network based machine learning methods to scale to large image and text data sets. For that, we study how the mutual information between a subregion and its complement scales with the subsystem size $L$, similar
Externí odkaz:
http://arxiv.org/abs/2103.06872
Autor:
Kukuljan, Ivan
Publikováno v:
Phys. Rev. D 104, 021702 (2021)
We develop a truncated Hamiltonian method to study nonequilibrium real time dynamics in the Schwinger model - the quantum electrodynamics in D=1+1. This is a purely continuum method that captures reliably the invariance under local and global gauge t
Externí odkaz:
http://arxiv.org/abs/2101.07807
Publikováno v:
J. High Energ. Phys. 2020, 224 (2020)
One of the manifestations of relativistic invariance in non-equilibrium quantum field theory is the "horizon effect" a.k.a. light-cone spreading of correlations: starting from an initially short-range correlated state, measurements of two observers a
Externí odkaz:
http://arxiv.org/abs/1906.02750
Publikováno v:
Phys. Rev. Lett. 121, 110402 (2018)
Complete information on the equilibrium behaviour and dynamics of a quantum field theory (QFT) is provided by multipoint correlation functions. However, their theoretical calculation is a challenging problem, even for exactly solvable models. This ha
Externí odkaz:
http://arxiv.org/abs/1802.08696
Publikováno v:
Phys. Rev. B 96, 060301 (2017)
Out-of-time-ordered correlation functions (OTOC's) are presently being extensively debated as quantifiers of dynamical chaos in interacting quantum many-body systems. We argue that in quantum spin and fermionic systems, where all local operators are
Externí odkaz:
http://arxiv.org/abs/1701.09147
Autor:
Kukuljan, Ivan, Prosen, Tomaz
We develop, based on Baxter's corner transfer matrices, a renormalizable numerically exact method for computation of the level density of the quasi-energy spectra of two-dimensional (2D) locally interacting many-body Floquet systems. We demonstrate i
Externí odkaz:
http://arxiv.org/abs/1512.06601
Publikováno v:
Phys. Rev. A 93, 032318 (2016)
We consider the decomposition of arbitrary isometries into a sequence of single-qubit and Controlled-NOT (C-NOT) gates. In many experimental architectures, the C-NOT gate is relatively 'expensive' and hence we aim to keep the number of these as low a
Externí odkaz:
http://arxiv.org/abs/1501.06911