Local shortcut to adiabaticity for quantum many-body systems
نویسندگان
چکیده
منابع مشابه
Adiabaticity in open quantum systems
Lorenzo Campos Venuti,1, 2 Tameem Albash,1, 2, 3 Daniel A. Lidar,1, 2, 4, 5 and Paolo Zanardi1, 2 Department of Physics & Astronomy, University of Southern California, Los Angeles, CA 90089, USA Center for Quantum Information Science & Technology, University of Southern California, Los Angeles, CA 90089, USA Information Sciences Institute, University of Southern California, Marina del Rey, Cali...
متن کاملExploiting quantum parallelism to simulate quantum random many-body systems.
We present an algorithm that exploits quantum parallelism to simulate randomness in a quantum system. In our scheme, all possible realizations of the random parameters are encoded quantum mechanically in a superposition state of an auxiliary system. We show how our algorithm allows for the efficient simulation of dynamics of quantum random spin chains with known numerical methods. We propose an...
متن کاملShortcut to adiabaticity in the Lipkin-Meshkov-Glick model.
We study transitionless quantum driving in an infinite-range many-body system described by the Lipkin-Meshkov-Glick model. Despite the correlation length being always infinite the closing of the gap at the critical point makes the driving Hamiltonian of increasing complexity also in this case. To this aim we develop a hybrid strategy combining a shortcut to adiabaticity and optimal control that...
متن کاملQuantum information in many-body systems
ABSTRACT: Quantum information sheds new light on quantum systems, complementary to the traditional point of view of energy. A key notion is entanglement, which measures quantum correlations within the system. Understanding entanglement of ground states is crucial to efficiently represent such many-body states using a small number of variational parameters. This is but one example of very powerf...
متن کاملNegentropy in Many-Body Quantum Systems
Negentropy (negative entropy) is the negative contribution to the total entropy of correlated many-body environments. Negentropy can play a role in transferring its related stored mobilizable energy to colliding nuclei that participate in spontaneous or induced nuclear fusions in solid or liquid metals or in stellar plasmas. This energy transfer mechanism can explain the observed increase of nu...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review A
سال: 2016
ISSN: 2469-9926,2469-9934
DOI: 10.1103/physreva.93.062108