Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Katiyar, Hemant"'
Publikováno v:
Phys. Rev. Lett. 130, 110801, March 2023
Strong local passivity is a property of multipartite quantum systems from which it is impossible to extract energy locally. Surprisingly, if the strong local passive state displays entanglement, it could be possible to locally activate energy density
Externí odkaz:
http://arxiv.org/abs/2203.16269
We study how to simulate, efficiently, pulse field gradients (PFG) used in nuclear magnetic resonance (NMR). An efficient simulation requires discretization in time and space. We study both discretizations and provide a guideline to choose best discr
Externí odkaz:
http://arxiv.org/abs/2006.10133
Autor:
Majidy, Shayan-Shawn, Katiyar, Hemant, Anikeeva, Galit, Halliwell, Jonathan, Laflamme, Raymond
Publikováno v:
Phys. Rev. A 100, 042325 (2019)
Macroscopic realism (MR) is the view that a system may possess definite properties at any time independent of past or future measurements, and may be tested experimentally using the Leggett-Garg inequalities (LGIs). In this work we advance the study
Externí odkaz:
http://arxiv.org/abs/1907.05489
Autor:
Feng, Guanru, Cho, Franklin H., Katiyar, Hemant, Li, Jun, Lu, Dawei, Baugh, Jonathan, Laflamme, Raymond
Publikováno v:
Phys. Rev. A 98, 052341 (2018)
Quantum optimal control can play a crucial role to realize a set of universal quantum logic gates with error rates below the threshold required for fault-tolerance. Open-loop quantum optimal control relies on accurate modeling of the quantum system u
Externí odkaz:
http://arxiv.org/abs/1805.11674
Autor:
Lu, Dawei, Li, Keren, Li, Jun, Katiyar, Hemant, Park, Annie Jihyun, Feng, Guanru, Xin, Tao, Li, Hang, Long, GuiLu, Brodutch, Aharon, Baugh, Jonathan, Zeng, Bei, Laflamme, Raymond
Publikováno v:
npj Quantum Information 3, 45 (2017)
Accurate and efficient control of quantum systems is one of the central challenges for quantum information processing. Current state-of-the-art experiments rarely go beyond 10 qubits and in most cases demonstrate only limited control. Here we demonst
Externí odkaz:
http://arxiv.org/abs/1701.01198
Autor:
Li, Keren, Long, Guofei, Katiyar, Hemant, Xin, Tao, Feng, Guanru, Lu, Dawei, Laflamme, Raymond
Publikováno v:
Phys. Rev. A 95, 022334 (2017)
Superposition, arguably the most fundamental property of quantum mechanics, lies at the heart of quantum information science. However, how to create the superposition of any two unknown pure states remains as a daunting challenge. Recently, it is pro
Externí odkaz:
http://arxiv.org/abs/1608.04349
Publikováno v:
New J. Phys. 19 (2017) 023033
The Leggett-Garg (LG) test of macroscopic realism involves a series of dichotomic non-invasive measurements that are used to calculate a function which has a fixed upper bound for a macrorealistic system and a larger upper bound for a quantum system.
Externí odkaz:
http://arxiv.org/abs/1606.07151
Autor:
Mahesh, T. S., Shukla, Abhishek, Hegde, Swathi S., Kumar, C. S. Sudheer, Katiyar, Hemant, Joshi, Sharad, Rao, K. R. Koteswara
Quantum ensembles form easily accessible architectures for studying various phenomena in quantum physics, quantum information science, and spectroscopy. Here we review some recent protocols for measurements in quantum ensembles by utilizing ancillary
Externí odkaz:
http://arxiv.org/abs/1509.04506
Physical potentials are routinely approximated to harmonic potentials so as to analytically solve the system dynamics. Often it is important to know when a quantum harmonic oscillator (QHO) behaves quantum mechanically and when classically. Recently
Externí odkaz:
http://arxiv.org/abs/1503.05883
Autor:
Lu, Dawei, Brodutch, Aharon, Park, Jihyun, Katiyar, Hemant, Jochym-O'Connor, Tomas, Laflamme, Raymond
Quantum computing exploits fundamentally new models of computation based on quantum mechanical properties instead of classical physics, and it is believed that quantum computers are able to dramatically improve computational power for particular task
Externí odkaz:
http://arxiv.org/abs/1501.01353