Experimental quantum simulation of fermion-antifermion scattering via boson exchange in a trapped ion

被引：25

作者：

Zhang, Xiang ^{[1
,2
]}

Zhang, Kuan ^{[1
]}

Shen, Yangchao ^{[1
]}

Zhang, Shuaining ^{[1
]}

Zhang, Jing-Ning ^{[1
]}

Yung, Man-Hong ^{[1
,3
,4
,5
]}

Casanova, Jorge ^{[6
,7
]}

Pedernales, Julen S. ^{[8
]}

Lamata, Lucas ^{[8
]}

Solano, Enrique ^{[8
,9
,10
]}

Kim, Kihwan ^{[1
]}

机构：

[1] Tsinghua Univ, Inst Interdisciplinary Informat Sci, Ctr Quantum Informat, Beijing 100084, Peoples R China

[2] Renmin Univ China, Dept Phys, Beijing 100872, Peoples R China

[3] Southern Univ Sci & Technol China, Inst Quantum Sci & Engn, Shenzhen 518055, Peoples R China

[4] Southern Univ Sci & Technol China, Dept Phys, Shenzhen 518055, Peoples R China

[5] Shenzhen Key Lab Quantum Sci & Engn, Shenzhen 518055, Peoples R China

[6] Univ Ulm, Inst Theoret Phys, Albert Einstein Allee 11, D-89069 Ulm, Germany

[7] Univ Ulm, IQST, Albert Einstein Allee 11, D-89069 Ulm, Germany

[8] Univ Basque Country UPV EHU, Dept Phys Chem, Apartado 644, Bilbao 48080, Spain

[9] Basque Fdn Sci, Ikerbasque, Maria Diaz de Haro 3, Bilbao 48013, Spain

[10] Shanghai Univ, Dept Phys, Shanghai 200444, Peoples R China

来源：

NATURE COMMUNICATIONS | 2018年 / 9卷

基金：

中国国家自然科学基金;

关键词：

DYNAMICS;

D O I：

10.1038/s41467-017-02507-y

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Quantum field theories describe a variety of fundamental phenomena in physics. However, their study often involves cumbersome numerical simulations. Quantum simulators, on the other hand, may outperform classical computational capacities due to their potential scalability. Here we report an experimental realization of a quantum simulation of fermion-antifermion scattering mediated by bosonic modes, using a multilevel trapped ion, which is a simplified model of fermion scattering in both perturbative and non-perturbative quantum electrodynamics. The simulated model exhibits prototypical features in quantum field theory including particle pair creation and annihilation, as well as self-energy interactions. These are experimentally observed by manipulating four internal levels of a Yb-171+ trapped ion, where we encode the fermionic modes, and two motional degrees of freedom that simulate the bosonic modes. Our experiment establishes an avenue towards the efficient implementation of field modes, which may prove useful in studies of quantum field theories including non-perturbative regimes.

引用

页数：8

共 50 条

[1] An SM, 2015, NAT PHYS, V11, P193, DOI 10.1038/NPHYS3197
[2] Digital-Analog Quantum Simulation of Spin Models in Trapped Ions
Arrazola, Inigo
Pedernales, Julen S.
Lamata, Lucas
Solano, Enrique
[J]. SCIENTIFIC REPORTS, 2016, 6
[3] Digitized adiabatic quantum computing with a superconducting circuit
Barends, R.
Shabani, A.
Lamata, L.
Kelly, J.
Mezzacapo, A.
Heras, U. Las
Babbush, R.
Fowler, A. G.
Campbell, B.
Chen, Yu
Chen, Z.
Chiaro, B.
Dunsworth, A.
Jeffrey, E.
Lucero, E.
Megrant, A.
Mutus, J. Y.
Neeley, M.
Neill, C.
O'Malley, P. J. J.
Quintana, C.
Roushan, P.
Sank, D.
Vainsencher, A.
Wenner, J.
White, T. C.
Solano, E.
Neven, H.
Martinis, John M.
[J]. NATURE, 2016, 534 (7606) : 222 - 226
[4] Digital quantum simulation of fermionic models with a superconducting circuit
Barends, R.
Lamata, L.
Kelly, J.
Garcia-Alvarez, L.
Fowler, A. G.
Megrant, A.
Jeffrey, E.
White, T. C.
Sank, D.
Mutus, J. Y.
Campbell, B.
Chen, Yu
Chen, Z.
Chiaro, B.
Dunsworth, A.
Hoi, I. -C.
Neill, C.
O'Malley, P. J. J.
Quintana, C.
Roushan, P.
Vainsencher, A.
Wenner, J.
Solano, E.
Martinis, John M.
[J]. NATURE COMMUNICATIONS, 2015, 6
[5] Boixo S., 2016, CHARACTERIZING QUANT
[6] Quantum Simulation of Interacting Fermion Lattice Models in Trapped Ions
Casanova, J.
Mezzacapo, A.
Lamata, L.
Solano, E.
[J]. PHYSICAL REVIEW LETTERS, 2012, 108 (19)
[7] Quantum Simulation of the Majorana Equation and Unphysical Operations
Casanova, J.
Sabin, C.
Leon, J.
Egusquiza, I. L.
Gerritsma, R.
Roos, C. F.
Garcia-Ripoll, J. J.
Solano, E.
[J]. PHYSICAL REVIEW X, 2011, 1 (02):
[8] Quantum Simulation of Quantum Field Theories in Trapped Ions
Casanova, J.
Lamata, L.
Egusquiza, I. L.
Gerritsma, R.
Roos, C. F.
Garcia-Ripoll, J. J.
Solano, E.
[J]. PHYSICAL REVIEW LETTERS, 2011, 107 (26)
[9] Klein tunneling and Dirac potentials in trapped ions
Casanova, J.
Garcia-Ripoll, J. J.
Gerritsma, R.
Roos, C. F.
Solano, E.
[J]. PHYSICAL REVIEW A, 2010, 82 (02):
[10] Efficient Measurement of Multiparticle Entanglement with Embedding Quantum Simulator
Chen, Ming-Cheng
Wu, Dian
Su, Zu-En
Cai, Xin-Dong
Wang, Xi-Lin
Yang, Tao
Li, Li
Liu, Nai-Le
Lu, Chao-Yang
Pan, Jian-Wei
[J]. PHYSICAL REVIEW LETTERS, 2016, 116 (07)

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