Question: In what Atlanta city is the Infinite Energy Arena located?

Context paragraphs:
Atlanta Gladiators: The Atlanta Gladiators are a professional minor league ice hockey team based in Duluth, Georgia (in the Atlanta metropolitan area).  The Gladiators play in the South Division of the ECHL's Eastern Conference.  The Gladiators play their home games at the Infinite Energy Arena.

Mary Norwood: Mary Norwood is a member of the Atlanta City Council and a candidate in the 2017 Atlanta mayoral election.  She was elected in 2013 for the citywide Post 2 seat and was sworn in on January 6, 2014.  Prior to that, she was a 2009 mayoral candidate in Atlanta and a city councilwoman in Atlanta, Georgia, representing the Post 2 At Large seat.  Norwood was originally elected to the Atlanta City Council in 2001.

Georgia Swarm: The Georgia Swarm are a box lacrosse team in the National Lacrosse League.  They play at the Infinite Energy Arena in Duluth, Georgia.

Atlanta City Council: Atlanta City Council is the main municipal legislative body for the city of Atlanta, Georgia.  It consists of 16 members primarily elected from 12 districts within the city.  The Atlanta City Government is divided into three bodies: the legislative, executive and judicial branches.  The Atlanta City Council serves as the legislative branch.  City departments, under the direction of the mayor, constitute the executive branch and the Courts, the judicial branch.

Duluth, Georgia: Duluth is a city in Gwinnett County, Georgia, United States.  It is a suburb of Atlanta.  As of the 2010 census, Duluth had a population of 26,600, and the U.S. Census Bureau estimated the population to be 29,331 as of 2016.

Chesapeake Energy Arena: Chesapeake Energy Arena, originally known as the Ford Center from 2002 to 2010 and Oklahoma City Arena until 2011, is an arena located in downtown Oklahoma City, Oklahoma, United States.  It opened in 2002 and since 2008 has served as the home venue of the Oklahoma City Thunder of the National Basketball Association (NBA).  Previously, Chesapeake Energy Arena was home to the Oklahoma City Blazers of the Central Hockey League (CHL) from 2002 until the team folded in July 2009, and the Oklahoma City Yard Dawgz of AF2 from 2004 to 2009 when the team moved to the Cox Convention Center.  In addition to its use as a sports venue, Chesapeake Energy Arena hosts concerts, family and social events, conventions, ice shows, and civic events.  The arena is owned by the city and operated by the SMG property management company and has 18,203 seats in the basketball configuration, 15,152 for hockey, and can seat up to 16,591 for concerts.

Laredo Energy Arena: The Laredo Energy Arena (known as the Laredo Entertainment Center until March 17, 2010) is a multi-purpose arena, in Laredo, Texas.  The Laredo Energy Arena can seat up to 8,065 fans at an ice hockey game, 8,067, at an arena football game, 10,000, at a basketball game, and 11,360, at concerts.  It is located to Bob Bullock Loop 20, on the northeastern side of Laredo.  Within the Laredo Energy Arena complex, there are several hotels within a walking distance.  The Laredo International Airport is also nearby.

Infinite Energy Arena: Infinite Energy Arena (formerly The Arena at Gwinnett Center, Gwinnett Civic Center Arena and commonly known as the Gwinnett Arena) is an indoor arena outside the city limits of Duluth, Georgia, within the Atlanta metropolitan area.  The arena was an expansion to the Gwinnett Center, which also includes a performing arts center and a convention center.  It is the home of the Atlanta Gladiators, an ice hockey team in the ECHL, and the Georgia Swarm, a professional box lacrosse team in the National Lacrosse League.

Atlanta Steam: The Atlanta Steam is a women's American football team of the Legends Football League based in Atlanta, Georgia.  The Steam is the league's 14th team and plays its games at the Infinite Energy Arena in suburban Gwinnett County, Georgia.

Eugene Mallove: Eugene Franklin Mallove (June 9, 1947 – May 14, 2004) was an American scientist, science writer, editor, and publisher of "Infinite Energy" magazine, and founder of the non-profit organization New Energy Foundation.  He was a proponent of cold fusion, and a supporter of its research and related exploratory alternative energy topics, several of which are sometimes characterised as "fringe science".

Supporting paragraphs: Infinite Energy Arena Duluth, Georgia
Answer: Duluth, Georgia