Strong environmental coupling in a Josephson parametric amplifier

被引：140

作者：

Mutus, J. Y. ^{[1
]}

White, T. C. ^{[1
]}

Barends, R. ^{[1
]}

Chen, Yu ^{[1
]}

Chen, Z. ^{[1
]}

Chiaro, B. ^{[1
]}

Dunsworth, A. ^{[1
]}

Jeffrey, E. ^{[1
]}

Kelly, J. ^{[1
]}

Megrant, A. ^{[1
,2
]}

Neill, C. ^{[1
]}

O'Malley, P. J. J. ^{[1
]}

Roushan, P. ^{[1
]}

Sank, D. ^{[1
]}

Vainsencher, A. ^{[1
]}

Wenner, J. ^{[1
]}

Sundqvist, K. M. ^{[3
]}

Cleland, A. N. ^{[1
]}

Martinis, John M. ^{[1
]}

机构：

[1] Univ Calif Santa Barbara, Dept Phys, Santa Barbara, CA 93106 USA

[2] Univ Calif Santa Barbara, Dept Mat, Santa Barbara, CA 93106 USA

[3] Texas A&M Univ, Dept Elect & Comp Engn, College Stn, TX 77843 USA

来源：

APPLIED PHYSICS LETTERS | 2014年 / 104卷 / 26期

关键词：

QUANTUM; NOISE;

D O I：

10.1063/1.4886408

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present a lumped-element Josephson parametric amplifier designed to operate with strong coupling to the environment. In this regime, we observe broadband frequency dependent amplification with multi-peaked gain profiles. We account for this behavior using the "pumpistor" model which allows for frequency dependent variation of the external impedance. Using this understanding, we demonstrate control over the complexity of gain profiles through added variation in the environment impedance at a given frequency. With strong coupling to a suitable external impedance, we observe a significant increase in dynamic range, and large amplification bandwidth up to 700 MHz giving near quantum-limited performance. (C) 2014 AIP Publishing LLC.

引用

页数：4

共 25 条

[1] Josephson amplifier for qubit readout
Abdo, Baleegh
Schackert, Flavius
Hatridge, Michael
Rigetti, Chad
Devoret, Michel
[J]. APPLIED PHYSICS LETTERS, 2011, 99 (16)
[2] SQUID-Based Microwave Cavity Search for Dark-Matter Axions
Asztalos, S. J.
Carosi, G.
Hagmann, C.
Kinion, D.
van Bibber, K.
Hotz, M.
Rosenberg, L. J.
Rybka, G.
Hoskins, J.
Hwang, J.
Sikivie, P.
Tanner, D. B.
Bradley, R.
Clarke, J.
[J]. PHYSICAL REVIEW LETTERS, 2010, 104 (04)
[3] Superconducting quantum circuits at the surface code threshold for fault tolerance
Barends, R.
Kelly, J.
Megrant, A.
Veitia, A.
Sank, D.
Jeffrey, E.
White, T. C.
Mutus, J.
Fowler, A. G.
Campbell, B.
Chen, Y.
Chen, Z.
Chiaro, B.
Dunsworth, A.
Neill, C.
O'Malley, P.
Roushan, P.
Vainsencher, A.
Wenner, J.
Korotkov, A. N.
Cleland, A. N.
Martinis, John M.
[J]. NATURE, 2014, 508 (7497) : 500 - 503
[4] Cryogenic, low-noise, balanced amplifiers for the 300-1200 MHz band using heterostructure field-effect transistors
Bradley, RF
[J]. NUCLEAR PHYSICS B-PROCEEDINGS SUPPLEMENTS, 1999, 72 : 137 - 144
[5] Widely tunable parametric amplifier based on a superconducting quantum interference device array resonator
Castellanos-Beltrana, M. A.
Lehnert, K. W.
[J]. APPLIED PHYSICS LETTERS, 2007, 91 (08)
[6] QUANTUM LIMITS ON NOISE IN LINEAR-AMPLIFIERS
CAVES, CM
[J]. PHYSICAL REVIEW D, 1982, 26 (08): : 1817 - 1839
[7] A broadband superconducting detector suitable for use in large arrays
Day, PK
LeDuc, HG
Mazin, BA
Vayonakis, A
Zmuidzinas, J
[J]. NATURE, 2003, 425 (6960) : 817 - 821
[8] Controlling the dynamic range of a josephson parametric amplifier
Eichler C.
Wallraff A.
[J]. EPJ Quantum Technology, 1 (1)
[9] Surface codes: Towards practical large-scale quantum computation
Fowler, Austin G.
Mariantoni, Matteo
Martinis, John M.
Cleland, Andrew N.
[J]. PHYSICAL REVIEW A, 2012, 86 (03)
[10] Quantum Back-Action of an Individual Variable-Strength Measurement
Hatridge, M.
Shankar, S.
Mirrahimi, M.
Schackert, F.
Geerlings, K.
Brecht, T.
Sliwa, K. M.
Abdo, B.
Frunzio, L.
Girvin, S. M.
Schoelkopf, R. J.
Devoret, M. H.
[J]. SCIENCE, 2013, 339 (6116) : 178 - 181

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