Zobrazeno 1 - 10
of 154
pro vyhledávání: '"Sugino, Fumihiko"'
Autor:
Padmanabhan, Pramod, Chowdhury, Abhishek, Sugino, Fumihiko, Majumdar, Mrittunjoy Guha, Sabapathy, Krishna Kumar
The two-dimensional color code is an alternative to the toric code that encodes more logical qubits while maintaining crucial features of the $\mathbb{Z}_2\times\mathbb{Z}_2$ toric code in the long wavelength limit. However its short range physics in
Externí odkaz:
http://arxiv.org/abs/2112.13617
Autor:
Padmanabhan, Pramod, Sugino, Fumihiko
Publikováno v:
J. Stat. Mech. (2021) 103103
Graphs are topological spaces that include broader objects than discretized manifolds, making them interesting playgrounds for the study of quantum phases not realized by symmetry breaking. In particular they are known to support anyons of an even ri
Externí odkaz:
http://arxiv.org/abs/2104.06853
Publikováno v:
J. Phys. A: Math. Theor. 54 135301 2021
For a generic $n$-qubit system, local invariants under the action of $SL(2,\mathbb{C})^{\otimes n}$ characterize non-local properties of entanglement. In general, such properties are not immediately apparent and hard to construct. Here we consider ce
Externí odkaz:
http://arxiv.org/abs/2010.00270
Publikováno v:
Quantum Information and Computation, Vol. 20, No. 13 & 14 (2020) 1154-1162
Braiding operators can be used to create entangled states out of product states, thus establishing a correspondence between topological and quantum entanglement. This is well-known for maximally entangled Bell and GHZ states and their equivalent stat
Externí odkaz:
http://arxiv.org/abs/2007.05660
Autor:
Sugino, Fumihiko
Motzkin and Fredkin spin chains exhibit the extraordinary amount of entanglement scaling as a square-root of the volume, which is beyond logarithmic scaling in the ordinary critical systems. Intensive study of such spin systems is urged to reveal nov
Externí odkaz:
http://arxiv.org/abs/2005.00257
Publikováno v:
Quantum 4, 311 (2020)
Unitary braiding operators can be used as robust entangling quantum gates. We introduce a solution-generating technique to solve the $(d,m,l)$-generalized Yang-Baxter equation, for $m/2\leq l \leq m$, which allows to systematically construct such bra
Externí odkaz:
http://arxiv.org/abs/2003.00244
Publikováno v:
Quant. Inf. and Comp., Vol 20, No 1-2 (2020) 37-64
Entangled states, such as the Bell and GHZ states, are generated from separable states using matrices known to satisfy the Yang-Baxter equation and its generalization. This remarkable fact hints at the possibility of using braiding operators as quant
Externí odkaz:
http://arxiv.org/abs/1911.02577
Autor:
Kuroki, Tsunehide, Sugino, Fumihiko
In the previous papers, the authors pointed out correspondence between a supersymmetric double-well matrix model and two-dimensional type IIA superstring theory on a Ramond-Ramond background. This was confirmed by agreement between planar correlation
Externí odkaz:
http://arxiv.org/abs/1901.10349
Autor:
Sugino, Fumihiko, Padmanabhan, Pramod
Publikováno v:
Quantum Theory and Symmetry with Lie Theory and Its Applications in Physics Volume 2, Springer Proceedings in Mathematics & Statistics 255 (2018) 137-148
In quantum statistical mechanics, closed many-body systems that do not exhibit thermalization after an arbitrarily long time in spite of the presence of interactions are called as many-body localized systems, and recently have been vigorously investi
Externí odkaz:
http://arxiv.org/abs/1812.05220
Autor:
Sugino, Fumihiko, Korepin, Vladimir
Publikováno v:
Int. J. Mod. Phys. B 32 No.28, 1850306 (2018)
Entanglement is one of the most intriguing features of quantum theory and a main resource in quantum information science. Ground states of quantum many-body systems with local interactions typically obey an "area law" meaning the entanglement entropy
Externí odkaz:
http://arxiv.org/abs/1806.04049