  A recent breakthrough in glass science has been the synthesis of ultrastable
glasses via physical vapor deposition techniques. These samples display
enhanced thermodynamic, kinetic and mechanical stability, with important
implications for fundamental science and technological applications. However,
the vapor deposition technique is limited to atomic, polymer and organic
glass-formers and is only able to produce thin film samples. Here, we propose a
novel approach to generate ultrastable glassy configurations in the bulk, via
random particle bonding, and using computer simulations we show that this
method does indeed allow for the production of ultrastable glasses. Our
technique is in principle applicable to any molecular or soft matter system,
such as colloidal particles with tunable bonding interactions, thus opening the
way to the design of a large class of ultrastable glasses.
