Asymptotic entanglement capacity of the ising and anisotropic Heisenberg interactions
نویسندگان
چکیده
Andrew M. Childs, 2 Debbie W. Leung, Frank Verstraete, and Guifré Vidal Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, MA 02139, USA IBM T. J. Watson Research Center, P.O. Box 218, Yorktown Heights, NY 10598, USA SISTA/ESAT, Department of Electrical Engineering, University of Leuven, Belgium Institute for Quantum Information, California Institute of Technology, Pasadena, CA 91125, USA (14 October 2002)
منابع مشابه
درهم‌تنیدگی کوانتومی و گذار فاز کوانتومی تحت اتلاف در مدل ناهمسانگرد هایزنبرگ XXZ با برهم‌کنش ژیالوسینکی - موریا
Because the key issue in quantum information and quantum computing is entanglement, the investigation of the effects of environment, as a source of quantum dissipation, and interaction between environment and system on entanglement and quantum phase transition is important. In this paper, we consider two-qubit system in the anisotropic Heisenberg XXZ model with the Dzyaloshinskii-moriya inter...
متن کاملStripes in the Ising limit of models for the cuprates
The hole-doped standard and extended t-J models on ladders with anisotropic Heisenberg interactions are studied computationally in the interval 0.0<l<1.0 (l50, Ising; l51, Heisenberg! at small J/t . It is shown that the approximately half-doped stripes recently discussed at l51 survive in the anisotropic case (l ,1.0), particularly in the ‘‘extended’’ model. Due to the absence of spin fluctuati...
متن کاملTwo-qubit quantum gates construction via unitary factorization
Quantum information and quantum computation are emerging research areas based on the properties of quantum resources, such as superposition and entanglement. In the quantum gate array version, the use of convenient and proper gates is essential. While these gates adopt theoretically convenient forms to reproduce computational algorithms, their design and feasibility depend on specific quantum s...
متن کاملAnisotropy and magnetic field effects on the entanglement of a two qubit Heisenberg XY chain.
We investigate the entanglement of a two-qubit anisotropic Heisenberg XY chain in thermal equilibrium at temperature T in the presence of an external magnetic field B along the z axis. By means of the combined influences of anisotropic interactions and a magnetic field B, one is able to produce entanglement for any finite T, by adjusting the magnetic field strength. This contrasts with the isot...
متن کاملQuantum magnets with anisotropic infinite range random interactions.
Using exact diagonalization techniques, we study the dynamical response of the anisotropic disordered Heisenberg model for systems of S=1/2 spins with infinite range random exchange interactions at temperature T=0. The model can be considered as a generalization, to the quantum case, of the well-known Sherrington-Kirkpatrick classical spin glass model. We also compute and study the behavior of ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Quantum Information & Computation
دوره 3 شماره
صفحات -
تاریخ انتشار 2003