Mirror Inversion of Quantum States in Linear Registers

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Decoherence of quantum registers

We consider decoherence of quantum registers, which consist of the qubits sited approximately periodically in space. The sites of the qubits are permitted to have a small random variance. We derive the explicit conditions under which the qubits can be assumed decohering independently. In other circumstances, the qubits are decohered cooperatively. We describe two kinds of collective decoherence...

متن کامل

Universal Optimal Cloning of Arbitrary Quantum States: From Qubits to Quantum Registers

We present the universal cloning transformation of states in arbitrary-dimensional Hilbert spaces. This unitary transformation attains the optimal fidelity of cloning as specified by Werner [Phys. Rev. A 58, 1827 (1998)]. With this cloning transformation, pure as well as impure states can be optimally copied, and the quality of the copies does not depend on the state being copied. We discuss th...

متن کامل

Coherent states of quantum non-linear systems

Quantum dynamics of integrable systems is discussed. Localized wave packets generalizing the conventional coherent states of minimal uncertainty are constructed. The wave packet moves along a certain trajectory and does not change its shape for times of order 1 h̄ . In this Letter we suggest that the definition of a coherent state should be related to the Hamiltonian.The conventional coherent st...

متن کامل

Quantum Logic between Remote Quantum Registers

N. Y. Yao, Z.-X. Gong, C. R. Laumann, 3 S. D. Bennett, L.-M. Duan, M. D. Lukin, L. Jiang, and A. V. Gorshkov Department of Physics, Harvard University, Cambridge, MA 02138, U.S.A. Department of Physics and MCTP, University of Michigan, Ann Arbor, MI 48109, U.S.A. ITAMP, Harvard University, Cambridge, MA 02138, U.S.A. Institute for Quantum Information and Matter, California Institute of Technolo...

متن کامل

On Initializing Quantum Registers and Quantum Gates

The problem of initializing phase in a quantum computing system is considered. The initialization of phases is a problem when the system is initially present in an entangled state and also in the application of the quantum gate transformations since each gate will introduce phase uncertainty. The accumulation of these random phases will render the recently proposed quantum computing schemes ine...

متن کامل

ذخیره 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 Letters

سال: 2004

ISSN: 0031-9007,1079-7114

DOI: 10.1103/physrevlett.93.230502