Zobrazeno 1 - 10
of 996
pro vyhledávání: '"P. Khemani"'
The performance of quantum error correcting (QEC) codes are often studied under the assumption of spatio-temporally uniform error rates. On the other hand, experimental implementations almost always produce heterogeneous error rates, in either space
Externí odkaz:
http://arxiv.org/abs/2409.03325
We introduce a family of classical stochastic processes describing diffusive particles undergoing branching and long-range annihilation in the presence of a parity constraint. The probability for a pair-annihilation event decays as a power-law in the
Externí odkaz:
http://arxiv.org/abs/2409.03280
Topologically-ordered phases are stable to local perturbations, and topological quantum error-correcting codes enjoy thresholds to local errors. We connect the two notions of stability by constructing classical statistical mechanics models for decodi
Externí odkaz:
http://arxiv.org/abs/2406.15757
While limitations on quantum computation by Markovian environmental noise are well-understood in generality, their behavior for different quantum circuits and noise realizations can be less universal. Here we consider a canonical quantum algorithm -
Externí odkaz:
http://arxiv.org/abs/2406.10344
Autor:
P. Khemani, S. Srinivasan, G. Salunke, N. Moulik, C. Dhamne, A. Chichra, V.R.M. Gollamudi, B.C. Parambil, M. Prasad, G. Chinnasamy, G. Narula, S.D. Banavali
Publikováno v:
Pediatric Hematology Oncology Journal, Vol 7, Iss 4, Pp S65-S66 (2022)
Externí odkaz:
https://doaj.org/article/44cc868882474d128a8cbc5bb179a55d
Autor:
Rakovszky, Tibor, Khemani, Vedika
We continue the study of classical and quantum low-density parity check (LDPC) codes from a physical perspective. We focus on constructive approaches and formulate a general framework for systematically constructing codes with various features on gen
Externí odkaz:
http://arxiv.org/abs/2402.16831
Autor:
Rakovszky, Tibor, Khemani, Vedika
Low-depth parity check (LDPC) codes are a paradigm of error correction that allow for spatially non-local interactions between (qu)bits, while still enforcing that each (qu)bit interacts only with finitely many others. On expander graphs, they can gi
Externí odkaz:
http://arxiv.org/abs/2310.16032
Publikováno v:
JAAD Case Reports, Vol 51, Iss , Pp 82-85 (2024)
Externí odkaz:
https://doaj.org/article/7274845fc7264fcc924111e20e6fba2c
Autor:
Ippoliti, Matteo, Khemani, Vedika
Publikováno v:
PRX Quantum 5, 020304 (2024)
Monitored quantum dynamics -- unitary evolution interspersed with measurements -- has recently emerged as a rich domain for phase structure in quantum many-body systems away from equilibrium. Here we study monitored dynamics from the point of view of
Externí odkaz:
http://arxiv.org/abs/2307.15011
Publikováno v:
Phys. Rev. Lett. 132, 100401 (2024)
Systems subject to high-frequency driving exhibit Floquet prethermalization, that is, they heat exponentially slowly on a time scale that is large in the drive frequency, $\tau_{\rm h} \sim \exp(\omega)$. Nonetheless, local observables can decay much
Externí odkaz:
http://arxiv.org/abs/2306.16716