Multi-terminal superconducting phase qubit

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود 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

Analysis of measurement errors for a superconducting phase qubit

We analyze several mechanisms leading to errors in a course of measurement of a superconducting fluxbiased phase qubit. Insufficiently long measurement pulse may lead to nonadiabatic transitions between qubit states 1 and 0 , before tunneling through a reduced barrier is supposed to distinguish the qubit states. Finite though large ratio of tunneling rates for these states leads to incomplete d...

متن کامل

Uncollapsing of a quantum state in a superconducting phase qubit

We demonstrate in a superconducting qubit the conditional recovery (“uncollapsing”) of a quantum state after a partial-collapse measurement. A weak measurement extracts information and results in a non-unitary transformation of the qubit state. However, by adding a rotation and a second partial measurement with the same strength, we erase the extracted information, effectively canceling the eff...

متن کامل

Metastable superconducting qubit.

We propose a superconducting qubit design, based on a tunable rf SQUID and nanowire kinetic inductors, which has a dramatically reduced transverse electromagnetic coupling to its environment, so that its excited state should be metastable. If electromagnetic interactions are in fact responsible for the current excited-state decay rates of superconducting qubits, this design should result in a q...

متن کامل

Detection mechanism for quantum phase transition in superconducting qubit array

We describe a mechanism to detect quantum phase transition QPT in a system by a coherent probe weakly coupled to it. We illustrate this mechanism by a circuit QED architecture where a superconducting Josephson junction qubit array interacts with a one-dimensional superconducting transmission line resonator TLR . The superconducting qubit array is modeled as an Ising chain in transverse field. O...

متن کامل

Superconducting persistent-current qubit

We present the design of a superconducting qubit that has circulating currents of opposite sign as its two states. The circuit consists of three nanoscale aluminum Josephson junctions connected in a superconducting loop and controlled by magnetic fields. The advantages of this qubit are that it can be made insensitive to background charges in the substrate, the flux in the two states can be det...

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: Physica C: Superconductivity

سال: 2002

ISSN: 0921-4534

DOI: 10.1016/s0921-4534(01)01187-x