 The Israel Physical Society
 
The Israel Physical Society 
 
   
 
Home          
About/Contact         
Newsletters         
Events/Seminars        
2020 IPS Conference      
Study Materials
    
    
Corporate Members     
 The Israel Physical Society
 
The Israel Physical Society 
 
   
 
Home          
About/Contact         
Newsletters         
Events/Seminars        
2020 IPS Conference      
Study Materials
    
    
Corporate Members     
The problem of a quantum Ising degree of freedom coupled to a gapless bosonic mode appears naturally in many one dimensional systems, yet surprisingly little is known how such a coupling affects the Ising quantum critical point. We investigate the fate of the critical point in a regime, where the weak coupling RG indicates a flow toward strong coupling. Using renormalization group analysis and numerical density matrix renormalization group (DMRG) calculations we show that quantum fluctuations near the critical point cause phase separation on an emergent long scale, and the transition becomes first order. This suggests the existence of a tricritical point with potentially exotic properties.