NDLI: Dynamics of a Phase Qubit-Resonator System: Requirements for Fast Nondemolition Readout of a Phase Qubit

Content Provider	Springer Nature Link
Author	Berman, G. P. Chumak, A. A. Tsifrivich, V. I.
Copyright Year	2012
Abstract	We examine the time-dependent evolution of a coupled qubit-transmission line-resonator system coupled to an external drive and a resonator environment. By solving the equation for a non-stationary resonator field, we determine the requirements for a single-shot nondestructive dispersive measurement of the phase qubit state. Reliable isolation of the qubit from the “electromagnetic environment” is necessary for a dispersive readout and can be achieved if the whole system interacts with the external fields only through a resonator that is weakly coupled to the qubit. A set of inequalities involving the resonator-qubit detuning and a coupling parameter, the resonator leakage and the measurement time, together with the requirement of multi-photon outgoing flux is derived. In particular, it is shown that to decrease the measurement time one must increase the resonator leakage. This leakage increase reduces the quality factor and decreases the resolution of the resonator eigenfrequencies corresponding to different qubit states. The consistency of our inequalities for two sets of experimental parameters is discussed.Our results can be used for optimizing experimental setups, parameters, and measurement protocols.
Starting Page	172
Ending Page	184
Page Count	13
File Format	PDF
ISSN	00222291
Journal	Journal of Low Temperature Physics
Volume Number	170
Issue Number	3-4
e-ISSN	15737357
Language	English
Publisher	Springer US
Publisher Date	2012-09-20
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Superconducting phase qubit Resonator Nondemolition readout Condensed Matter Physics Characterization and Evaluation of Materials Magnetism, Magnetic Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Condensed Matter Physics Materials Science

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Alternative Readout Electronics for Superconducting Transition Edge Sensors

A TDMA Hybrid SQUID Multiplexer

Aspects of Qubit Dynamics in the Presence of Leakage

Measurements of Decoherence Times in a Josephson Charge Qubit Using Fast Pulses

Andreev Spectroscopy for Superconducting Phase Qubits

Dispersive Charge and Flux Qubit Readout as a Quantum Measurement Process

Fast and High Dynamic Range Imaging with Superconducting Tunnel Junction Detectors

Transitional dynamics of a phase qubit-resonator system: requirements for fast readout of a phase qubit

Fast High-Voltage Light Triggered Superconducting Opening Switch

Dynamics of a Phase Qubit-Resonator System: Requirements for Fast Nondemolition Readout of a Phase Qubit

Similar Documents

Alternative Readout Electronics for Superconducting Transition Edge Sensors

A TDMA Hybrid SQUID Multiplexer

Aspects of Qubit Dynamics in the Presence of Leakage

Measurements of Decoherence Times in a Josephson Charge Qubit Using Fast Pulses

Andreev Spectroscopy for Superconducting Phase Qubits

Dispersive Charge and Flux Qubit Readout as a Quantum Measurement Process

Fast and High Dynamic Range Imaging with Superconducting Tunnel Junction Detectors

Transitional dynamics of a phase qubit-resonator system: requirements for fast readout of a phase qubit

Fast High-Voltage Light Triggered Superconducting Opening Switch

Dynamics of a Phase Qubit-Resonator System: Requirements for Fast Nondemolition Readout of a Phase Qubit