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Vadim N Smelyanskiy

from Goleta, CA
Age ~63
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Also known as:
Vadim C Smelyanskiy, Yadim Smelyanskiy, Vadim N Smelyansky, Vagim Y, I L
Related to:
Natalie Savin, 39Anne Cabibi, 58Kathe A Lambertz, 85Corissa Lasley, 50Barbara Sutton, 85Kira Foygel
Connected to:
Renata Smelyanskaya, 58Kurt A Smemo, 54Jason W Smen, 53Berniece E Smentek, 77Christine A Smentek, 37Gerald W Smentek, 75Jill M Smentek, 50Eric R Smer, 39Philip A Smeraglino, 77Gina M Smeraldi, 37

Vadim Smelyanskiy Phones & Addresses

  • Goleta, CA
  • Palo Alto, CA
  • 645 Old San Francisco Rd, Sunnyvale, CA 94086 (408) 739-9490
  • 1543 Lilac Ln, Mountain View, CA 94043 (650) 964-7286
  • Southfield, MI
  • East Lansing, MI
  • San Francisco, CA
  • Ann Arbor, MI
  • San Jose, CA
  • 1543 Lilac Ln, Mountain View, CA 94043 (650) 922-0526

Work

Position: Professional/Technical

Education

Degree: Graduate or professional degree

Emails

v***[email protected]

Resumes

Resumes

Vadim Smelyanskiy Photo 1

Scientist

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Location:
1543 Lilac Ln, Mountain View, CA 94043
Industry:
Government Administration
Work:
Nasa
Scientist
Education:
Kharkov Polytechnic Institute, Ukraine
Masters
Interests:
Photograph
Exercise
Electronics
Traveling
Travel
Languages:
Russian
Vadim Smelyanskiy Photo 2

Vadim Smelyanskiy

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Vadim Smelyanskiy Photo 3

Vadim Smelyanskiy

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Work:
Nasa
Manager Or Supervisor

Publications

Us Patents

Reducing Errors With Circuit Gauge Selection

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US Patent:
20220414519, Dec 29, 2022
Filed:
Nov 16, 2020
Appl. No.:
17/777708
Inventors:
- Mountain View CA, US
Sergio Boixo Castrillo - Ranchos Palos Verdes CA, US
Craig Gidney - Goleta CA, US
Vadim Smelyanskiy - Mountain View CA, US
International Classification:
G06N 10/70
G06N 10/20
Abstract:
Systems and methods for quantum error mitigation are provided. A method can include accessing a quantum system; implementing a plurality of quantum circuits; obtaining a plurality of measurements performed for each of the quantum circuits; determining an estimated average value of an observable of interest (O)for the quantum circuits based at least in part on the plurality of measurements; and determining an estimated noiseless value of an observable of interest (O) based at least in part on the estimated average value of the observable of interest (O)using a single-point full depolarizing error model. Each of the plurality of quantum circuits can be implemented by a different sequence of quantum gates as compared to each of the other quantum circuits in the plurality to thereby implement one or more circuit gauges and can be an equivalent logical operation as each of the other quantum circuits in the plurality.

Estimating The Fidelity Of Quantum Logic Gates And Quantum Circuits

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US Patent:
20220230087, Jul 21, 2022
Filed:
Oct 30, 2019
Appl. No.:
17/623128
Inventors:
- Mountain View CA, US
Vadim Smelyanskiy - Mountain View CA, US
Hartmut Neven - Malibu CA, US
Alexander Korotkov - Riverside CA, US
International Classification:
G06N 10/20
G06N 10/40
Abstract:
Methods, systems and apparatus for estimating the fidelity of quantum logic gates. In one aspect, a method includes defining multiple sets of random quantum circuits; for each set of random quantum circuits: selecting an observable for each element in the set of random quantum circuits, wherein each selected observable corresponds to a respective element of the set of random quantum circuits and is dependent on the element to which it corresponds; estimating a value of a polarization parameter for the set of random quantum circuits, comprising performing a least mean squares minimization based on multiple expectation values, wherein each expectation value comprises an expectation value of a respective selected observable with respect to an output of an experimental implementation of a random quantum circuit corresponding to the respective selected observable; and processing the estimated polarization parameter values to obtain an estimate of the fidelity of the n-qubit quantum logic gate.

Three Qubit Entangling Gate Through Two-Local Hamiltonian Control

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US Patent:
20210390442, Dec 16, 2021
Filed:
Jan 31, 2019
Appl. No.:
16/981606
Inventors:
- Mountain View CA, US
Vadim Smelyanskiy - Mountain View CA, US
Sergio Boixo Castrillo - Rancho Palos Verdes CA, US
International Classification:
G06N 10/00
H01L 39/22
Abstract:
Methods, systems and apparatus for implementing a quantum gate on a quantum system comprising a second qubit coupled to a first qubit and a third qubit. In one aspect, a method includes evolving a state of the quantum system for a predetermined time, wherein during evolving: the ground and first excited state of the second qubit are separated by a first energy gap ω; the first and second excited state of the second qubit are separated by a second energy gap equal to a first multiple of ω minus qubit anharmoniticity−; the ground and first excited state of the first qubit and third qubit are separated by a third energy gap equal to ω−; and the first and second excited state of the first qubit and third qubit are separated by a fourth energy gap equal to the first multiple of the ω minus a second multiple of .

Composite Quantum Gate Calibration

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US Patent:
20210304054, Sep 30, 2021
Filed:
Mar 31, 2021
Appl. No.:
17/218690
Inventors:
- Mountain View CA, US
Vadim Smelyanskiy - Mountain View CA, US
Yu Chen - Goleta CA, US
Xiao Mi - Goleta CA, US
Yuezhen Niu - El Segundo CA, US
Kostyantyn Yevgenovych Kechedzhi - Santa Monica CA, US
Alexander Nikolaevich Korotkov - Riverside CA, US
Zhang Jiang - El Segundo CA, US
International Classification:
G06N 10/00
G06F 15/16
Abstract:
Systems and methods for composite quantum gate calibration for a quantum computing system are provided. In some implementations, a method includes accessing a unitary gate model describing a composite quantum gate. The unitary gate model includes a plurality of gate parameters. The method includes implementing the composite quantum gate for a plurality of gate cycles on the quantum system to amplify the plurality of gate parameters. The method includes obtaining a measurement of a state of the quantum system after implementing the composite quantum gate for the plurality of gate cycles. The method includes determining at least one of the plurality of gate parameters based at least in part on the measurement of the state of the quantum system. The method includes calibrating the composite quantum gate for the quantum computing system based at least in part on the plurality of gate parameters.

Quantum Computation Through Reinforcement Learning

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US Patent:
20200410343, Dec 31, 2020
Filed:
Jan 31, 2018
Appl. No.:
16/962059
Inventors:
- Mountain View CA, US
Hartmut Neven - Malibu CA, US
Vadim Smelyanskiy - Mountain View CA, US
Sergio Boixo Castrillo - Rancho Palos Verdes CA, US
International Classification:
G06N 3/08
G06N 10/00
Abstract:
Methods, systems, and apparatus for designing a quantum control trajectory for implementing a quantum gate using quantum hardware. In one aspect, a method includes the actions of representing the quantum gate as a sequence of control actions and applying a reinforcement learning model to iteratively adjust each control action in the sequence of control actions to determine a quantum control trajectory that implements the quantum gate and reduces leakage, infidelity and total runtime of the quantum gate to improve its robustness of performance against control noise during the iterative adjustments.

Universal Control For Implementing Quantum Gates

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US Patent:
20200364602, Nov 19, 2020
Filed:
Jan 31, 2018
Appl. No.:
16/961388
Inventors:
- Mountain View CA, US
Hartmut Neven - Malibu CA, US
Vadim Smelyanskiy - Mountain View CA, US
Sergio Boixo Castrillo - Rancho Palos Verdes CA, US
International Classification:
G06N 10/00
H03K 3/38
Abstract:
Methods, systems, and apparatus for implementing a unitary quantum gate on one or more qubits. In one aspect, a method includes the actions designing a control pulse for the unitary quantum gate, comprising: defining a universal quantum control cost function, wherein the control cost function comprises a qubit leakage penalty term representing i) coherent qubit leakage, and incoherent qubit leakage across all frequency components during a time dependent Hamiltonian evolution that realizes the unitary quantum gate; adjusting parameters of the time dependent Hamiltonian evolution to vary a control cost according to the control cost function such that leakage errors are reduced; generating the control pulse using the adjusted parameters; and applying the control pulse to the one or more qubits to implement the unitary quantum gate.

Fidelity Estimation For Quantum Computing Systems

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US Patent:
20190156239, May 23, 2019
Filed:
May 17, 2016
Appl. No.:
16/301863
Inventors:
- Mountain View CA, US
Nan Ding - Los Angeles CA, US
Ryan Babbush - Venice CA, US
Sergei V. Isakov - Zurich, CH
Hartmut Neven - Malibu CA, US
Vadim Smelyanskiy - Mountain View CA, US
Sergio Boixo Castrillo - Rancho Palos Verdes CA, US
International Classification:
G06N 10/00
Abstract:
Methods and apparatus for estimating the fidelity of quantum hardware. In one aspect, a method includes accessing a set of quantum gates; sampling a subset of quantum gates from the set of quantum gates, wherein the subset of quantum gates defines a quantum circuit; applying the quantum circuit to a quantum system and performing measurements on the quantum system to determine output information of the quantum system; calculating output information of the quantum system based on application of the quantum circuit to the quantum system; and estimating a fidelity of the quantum circuit based on the determined output information and the calculated output information of the quantum system.
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Vadim N Smelyanskiy from Goleta, CA, age ~63 Get Report