scholarly journals Qubit readout error mitigation with bit-flip averaging

2021 ◽  
Vol 7 (47) ◽  
Author(s):  
Alistair W. R. Smith ◽  
Kiran E. Khosla ◽  
Chris N. Self ◽  
M. S. Kim
Keyword(s):  
Error Mitigation ◽  
Bit Flip ◽  
Readout Error

scholarly journals A quantum solution for efficient use of symmetries in the simulation of many-body systems

2020 ◽  
Vol 6 (1) ◽  
Author(s):  
Albert T. Schmitz ◽  
Sonika Johri
Keyword(s):  
Search Space ◽  
Many Body ◽  
Error Mitigation ◽  
Minimization Procedure ◽  
Group Orbit ◽  
Many Body Systems ◽  
Computational Bottleneck ◽  
Bit Flip ◽  
The Impact ◽  
Quantum Solution

AbstractA many-body Hamiltonian can be block-diagonalized by expressing it in terms of symmetry-adapted basis states. Finding the group orbit representatives of these basis states and their corresponding symmetries is currently a memory/computational bottleneck on classical computers during exact diagonalization. We apply Grover’s search in the form of a minimization procedure to solve this problem. Our quantum solution provides an exponential reduction in memory, and a quadratic speedup in time over classical methods. We discuss explicitly the full circuit implementation of Grover minimization as applied to this problem, finding that the oracle only scales as polylog in the size of the group, which acts as the search space. Further, we design an error mitigation scheme that, with no additional qubits, reduces the impact of bit-flip errors on the computation, with the magnitude of mitigation directly correlated with the error rate, improving the utility of the algorithm in the Noisy Intermediate Scale Quantum era.

Memory Implementation using Multi Bit Flip-Flop

2015 ◽  
Vol 5 (2) ◽  
pp. 34-39
Author(s):  
Palagani Yellappa ◽  
◽  
Mareddi Bharathkumar ◽  
Shaik Shabana Azmi ◽  
◽  
...  
Keyword(s):  
Flip Flop ◽  
Bit Flip

Virtual Radiation Oncology Clinic (VROC): The Novel Training Tool for Radiation Oncology Error Mitigation

2015 ◽  
Vol 93 (3) ◽  
pp. E376-E377
Author(s):  
T. Willoughby ◽  
S. Meeks ◽  
P. Kelly ◽  
T. Dvorak ◽  
K. Muller ◽  
...  
Keyword(s):  
Radiation Oncology ◽  
The Novel ◽  
Training Tool ◽  
Error Mitigation

scholarly journals Unified approach to data-driven quantum error mitigation

2021 ◽  
Vol 3 (3) ◽  
Author(s):  
Angus Lowe ◽  
Max Hunter Gordon ◽  
Piotr Czarnik ◽  
Andrew Arrasmith ◽  
Patrick J. Coles ◽  
...  
Keyword(s):  
Data Driven ◽  
Unified Approach ◽  
Error Mitigation ◽  
Quantum Error
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